US20090149123A1 - Register for air conditioning - Google Patents
Register for air conditioning Download PDFInfo
- Publication number
- US20090149123A1 US20090149123A1 US11/954,208 US95420807A US2009149123A1 US 20090149123 A1 US20090149123 A1 US 20090149123A1 US 95420807 A US95420807 A US 95420807A US 2009149123 A1 US2009149123 A1 US 2009149123A1
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- United States
- Prior art keywords
- register
- gear
- slat
- shaft
- coupled
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/76—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by means responsive to temperature, e.g. bimetal springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
- F24F2013/1433—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with electric motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
- F24F2013/1446—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with gearings
Definitions
- HVAC heating, ventilating and air conditioning
- HVAC Heating, ventilating and air conditioning
- the HVAC units are usually designed to provide thermal comfort, acceptable indoor air quality, and reasonable installation, operation, and maintenance costs. These units can provide ventilation, reduce air infiltration, and maintain pressure relationships between spaces.
- Such units commonly include multiple registers for air distribution.
- the registers supply conditioned air from air ducts to various zones within a room.
- a register may have fixed slats or louvers that provide constant air flow, or adjustable slats to adjust the airflow to the various zones. Constant airflow registers are used when temperature control for individual zones is not required. On the other hand, when the rate and direction of airflow need to be controlled, registers with adjustable slats are used.
- the slats can be manually adjusted by operating a lever.
- this requires the person adjusting the slats to be in close proximity to the register. This can be a problem, especially in cases when the register is installed at a considerable height from the ground, such as on the ceiling of a room, or near the top of a wall.
- an air conditioning register includes at least one adjustable slat coupled to at least one pinion gear.
- the pinion gear may engage a rack gear such that a linear motion of the rack gear translates into a rotational motion of the pinion gear.
- the rack gear may be driven by a driving gear coupled to a shaft.
- the shaft may be driven manually.
- the shaft may be driven by at least one powered actuator.
- FIG. 1 illustrates an exemplary register for air conditioning having adjustable slats
- FIGS. 2 a, 2 b and 2 c illustrate different perspective views of the register
- FIG. 3 illustrates a perspective view of the register from yet another perspective
- FIG. 4 illustrates the register placed in a frame according to one embodiment of the current disclosure
- FIG. 5 illustrates a register coupled to a frame according to one embodiment of the current disclosure
- FIG. 6 illustrates a perspective view of the register coupled to the frame
- FIG. 7 illustrates an isometric view of a subassembly that may be used to control the operation of the gears
- FIG. 8 is a front view of the motor and mounting bracket illustrated in FIG. 7 ;
- FIG. 9 is a side view of the motor supported on a mounting plate by a mounting bracket
- FIG. 10 illustrates an exemplary heating, ventilation, and air conditioning unit with multiple registers according to one embodiment of the current disclosure.
- FIG. 11 illustrates an exemplary heating, ventilation, and air conditioning unit with multiple registers and multiple controls according to one embodiment of the current disclosure.
- FIG. 1 illustrates a perspective view of a register 100 in an exemplary embodiment.
- the register 100 includes a plurality of gear-driven adjustable slats 106 A, 106 B and 106 C, collectively referred to as 106 hereafter.
- 106 gear-driven adjustable slats
- the register 100 would generally comprise one or more slats 106 and the configuration of the slats 106 may be straight or curved.
- the register 100 includes a hollow frame 104 that includes a horizontal back mounting plate portion 144 with lateral frame portions 102 , and transverse frame portions 120 , 122 bridging the lateral frame portions 102 .
- Each of the slats 106 may be pivotably mounted to one of the transverse frame portions, such as frame portion 122 , at one end. At the other end, each slat may be coupled to a pinion gear, such as 108 A, 108 B and 108 C, collectively referred to as 108 hereafter. Thus, an axis of each slat may be parallel to the lateral frame portion 102 . This structural arrangement may cause the slats 106 to rotate when the pinion gears 108 rotate.
- the pinion gears 108 can be rotated by a rack gear 118 through a first set of gear teeth 116 present on a first face of the rack gear 118 .
- the rack gear 118 can engage with a driving gear 110 through a second set of gear teeth 124 on a second face of the rack gear 118 .
- the first set of gear teeth 116 on the first face of rack gear 118 are adjacent the second set of gear teeth 124 on the second face of rack gear 118 .
- the first set of gear teeth 116 and the second set of gear teeth 124 may be disposed on opposing faces of rack gear 118 .
- the rack gear 118 slides over the frame of the register 104 when moved by the driving gear 110 , and may be supported by a suitable structural feature such as a set of guides 119 .
- a shaft 112 may be supported by a bearing assembly 134 and coupled to the driving gear 110 such that a rotation of the shaft translates into a corresponding rotation of the driving gear 110 .
- the driving gear 110 rotates correspondingly.
- the rotating driving gear 110 drives the rack gear 118 in a linear direction.
- the rack gear 118 engages with and rotates the pinion gears 108 , causing the slats 106 to also rotate.
- the slats 106 may control the airflow by changing the direction and rate of air being circulated.
- the shaft 112 can be maneuvered in a clockwise direction. Inversely, to close the vents using slats 106 , the shaft 112 can be maneuvered in a counter-clockwise direction.
- the shaft 112 can extend in a direction that makes the shaft 112 easily accessible.
- the shaft 112 can extend vertically downwards from a ceiling register.
- the axis of the shaft 112 can be oriented at an angle or vertically relative to the register 100 .
- an electric motor 126 or any suitable powered actuator may be electrically connected to an external control unit such as a wall fixture (not shown) or a remote control unit 130 .
- the remote control unit 130 may include an Infra-Red (IR) receiver 136 , radio frequency (RF) antenna 132 or some other type of wireless link as would be apparent to one skilled in the art.
- the remote control unit 130 may be coupled using wiring 128 to the electric motor 126 .
- the electric motor 126 may be externally mounted to and supported by a horizontal back mounting plate portion 144 .
- the remote control unit 130 can be used to rotate the drive shaft 112 to which is coupled the rotating driving gear 110 .
- the drive shaft 112 , driving gear 110 , rack gear 118 and pinion gears 108 provide a quick and safe mechanism to control the slats 106 and alter the airflow entering a room.
- FIGS. 2 a, 2 b and 2 c illustrate different perspective views of the register 100 .
- FIG. 2 a illustrates the top view 200 of the register 100
- FIGS. 2 b and 2 c show the front view and a side view.
- each of the slats 106 may be pivotably mounted to the frame member 122 at one end via couplings such as rods 202 a, 202 b, and 202 c, collectively referred to as 202 hereafter.
- the other end of each of the slats 106 may be coupled to the pinion gears 108 via couplings such as rods 204 a, 204 b, and 204 c, collectively referred to as 204 hereafter.
- the pinion gears 108 can engage the rack gear 118 via the first set of gear teeth 116 present on the rack gear 118 .
- the rack gear 118 can also engage to the driving gear 110 via the second set of gear teeth 124 present on the rack gear 118 .
- the driving gear 110 may cause the rack gear 118 to move in a linear direction.
- the linear motion of the rack gear 118 translates into a rotary motion of the pinion gears 108 and further into a rotary motion of the slats 106 .
- FIG. 3 illustrates a perspective view 300 of the register 100 from yet another perspective.
- This is a perspective view of the mechanism by which the slats 106 in the register 100 can be moved.
- the perspective view 300 illustrates how the second set of gear teeth 124 present on rack gear 118 engage the driving gear 110 and the first set of gear teeth 116 present on rack gear 118 engage the pinion gears 108 .
- the perspective view 300 also illustrates how the slats 106 are coupled to the pinion gears 118 at one end via the rods 204 and to the frame 122 at the other end via the rods 202 .
- FIG. 4 illustrates the register 100 placed in a frame in an exemplary embodiment.
- the frame 400 can be any vent frame known in the art.
- FIG. 5 illustrates a register 506 coupled to a frame 514 in an exemplary embodiment.
- the register 506 is an exemplary implementation of the register 100 and can be coupled to the frame 514 at multiple points such as 502 a and 502 b, collectively referred to as 502 hereafter.
- the shaft 112 may be manually maneuvered by a handle 540 or some other device or tool, such as a screwdriver, hexagonal key or Allen wrench, a ratchet drive or the like, coupled to the shaft 112 .
- the handle 540 may be elongated and of sufficient length to avoid the need for a step stool or ladder to reach the register 506 and adjust the slats 106 . Adjusting the slats 106 may entail moving the slats 106 in a direction that enlarges the register 506 opening and increases the flow of air through the slats 106 , or moving the slats 106 in a direction that decreases the register 506 opening and diminishes the flow of air through the slats 106 .
- the handle 540 may be coupled through the driving gear 110 to the shaft 112 by means of a screw, socket, bolt or other attachment means well known to one of ordinary skill in the art.
- the handle 540 , driving gear 110 and shaft 112 assembly may be supported and secured to the register 506 by a mounting plate 142 that is attached to the register 506 .
- the frame 514 includes multiple louvers placed in various orientations, such as louvers 510 placed parallel to the slats 106 and louvers 508 placed perpendicular to the slats 106 . It will be understood that the placement of the louvers 510 and 508 can be varied in other implementations. Further, the louvers 510 and 508 can themselves be movable louvers, or can be fixed louvers.
- the frame 514 can be coupled to the register 506 at multiple points such as 504 a and 504 b, collectively referred to as 504 , present in the frame portion 512 . It will be understood that the location and number of the points 504 correspond to the points 502 in the register 506 .
- FIG. 6 illustrates a perspective view 600 of the register 506 coupled to the frame 514 as may be visible to a user during operation of the register 506 .
- the horizontally oriented louvers 604 and vertically oriented louvers 602 in frame 600 correspond to the louvers 510 and 508 in the frame 514 respectively.
- FIG. 7 illustrates a subassembly 700 that includes the electric motor 126 , pinion gears 108 and rack gears 118 .
- a mounting bracket 710 may support or house the electric motor 126 that may be secured to a horizontal back mounting plate 720 .
- the rack gear 118 moves up and down.
- the pinion gears 108 that are engaged with the second set of gear teeth 116 rotate corresponding to the motion of the driving gear 110 and control the movement of the louvers 106 .
- FIG. 8 is a front detailed view 800 of a mounting arrangement for the electric motor 126 supported by the mounting bracket 710 and attached to the horizontal back mounting plate 720 .
- FIG. 9 is a side cutaway view of the mounting arrangement for electric motor 126 as depicted in FIG. 7 .
- the electric motor may be attached to the mounting plate 720 using attachment means commonly known to one skilled in the art.
- the mounting bracket 710 may be attached to the horizontal back mounting plate 720 and secured to the motor 126 at the bearing assembly section 134 .
- FIG. 10 illustrates a heating, ventilation and air conditioning (HVAC) system 1000 .
- System 1000 includes a central air handling HVAC unit 1010 and an associated HVAC controller 1020 .
- the central HVAC unit 1010 may be operational to provide conditioned air to one or more interior environments or zones through supply registers 1050 . Air leaves an interior environment zone and is returned to the central HVAC unit 1010 through return register 1060 .
- the HVAC controller 1020 includes switches and indicators well known to one of ordinary skill in the art to electronically engage and directly control the internal mechanisms and functions of the HVAC unit 1010 .
- the HVAC unit 1010 and HVAC controller 1020 may be part of a single modular unit using common housing. Alternatively, the HVAC unit 1010 and HVAC controller 1020 could be separately located from each other.
- the registers 1050 may be coupled to HVAC controller 1020 via respective control channels 1090 A-D.
- the control channels 1090 A-D may be any wired or wireless electrical control medium including, but not limited to, optical, copper wiring, infrared (IR) light or radio frequency (RF) or other suitable media.
- IR infrared
- RF radio frequency
- one supply register 1050 , one return register 1060 and/or a plurality of supply registers 1050 and return registers 1060 may be situated in one interior zone, or a plurality of interior zones depending on customer configuration.
- Supply registers 1050 and return register 1060 may include louvers (not shown) that may be removable or built-in.
- the central HVAC unit 1010 distributes conditioned air through supply ductwork 1040 and delivers the conditioned air through at least one supply register 1050 that may be situated in an interior location.
- the air of the interior location may be returned through a return register 1060 to the central HVAC unit 1010 through return ductwork 1070 .
- System 1000 may configure the louvers of a supply register 1050 to adjust, i.e. increase or decrease, the flow of air through the register 1050 .
- system 1000 includes a master thermostat 1030 unit that senses temperature.
- the master thermostat 1030 unit may include a switch that controls heating and/or cooling modes of operation.
- Master thermostat 1030 unit electronically couples to the HVAC controller 1020 through control channel 1090 M and controls the operation of the HVAC controller 1020 .
- the control channels 1090 may be wired, wireless or other suitable type of electrical control media.
- the HVAC controller 1020 operates the central HVAC unit 1010 and the register 1050 louvers, corresponding to the master thermostat 1030 unit setting.
- the master thermostat 1030 unit may be set to 75 degrees Fahrenheit (75° F.). Through its control channel 1090 M, the master thermostat 1030 unit may control the HVAC controller 1020 operation and run the HVAC unit 1010 until the thermostat 1030 senses conditions at its location have achieved the desired temperature setting.
- the HVAC controller 1020 may also control the louver opening of supply registers 1050 through control channels 1090 .
- the HVAC controller may open or close the louvers of the registers 1050 to increase or decrease the flow of air through the register based on the 75 degrees Fahrenheit setting of the master thermostat 1030 . Once the setting is achieved the HVAC controller may close the register louvers.
- the master thermostat 1030 unit may be mounted to a wall or situated at some other location and may be operated manually or by remote control.
- FIG. 11 illustrates another embodiment of a HVAC system 1100 with thermostatically controlled registers 1150 .
- System 1100 includes central HVAC unit 1110 , an associated HVAC controller 1120 , at least one air supply outlet register 1150 and at least one air return register 1160 .
- Supply registers 1150 A-D and return registers 1160 may include louvers (not shown) that may be removable or built-in. The louvers of the supply registers may adjust to increase or decrease the supply of air through the registers.
- System 1100 may include a master thermostat 1130 unit electronically coupled to the HVAC controller 1120 through control channel 1190 M.
- System 1100 may also include one or more slave thermostats 1170 A-C electronically coupled through respective control channels 1190 A-C to a respective supply register 1150 A-D.
- the control channel 1190 may be wired, wireless or other suitable type of electrical control media.
- the system 1100 may be configured to include multiple slave thermostats and each respective slave thermostat 1170 A-C may control one or more supply registers 1150 .
- the slave thermostats 1170 A-C are preferably located within the same zone as the supply register 1150 A-D it controls or may be located in some other nearby or accessible location.
- the slave thermostats 1170 A-C and the master thermostat 1130 may be operated by manual or remote control.
- the HVAC controller 1120 operates the central HVAC unit 1110 in dependence on or corresponding to the master thermostat 1130 unit setting.
- the supply register 1150 louvers are adjusted in response to a setting of a slave thermostat 1170 to which it may be electronically coupled.
- the master thermostat 1130 unit may be set to 75 degrees Fahrenheit (75° F.), and the HVAC controller 1020 may run the HVAC unit 1110 until the thermostat 1130 senses conditions at its location have achieved the desired temperature setting.
- a zone that is controlled by a slave thermostat 1170 may be configured to set its own desired temperature to regulate the temperature of its specific zone of operation.
- slave thermostat 1170 A may be set to 65 degrees Fahrenheit (65° F).
- slave thermostat 1170 A may completely or partially close the louvers of supply register 1150 A through its control channel 1190 A to maintain the desired temperature by sealing the zone to prevent any additional conditioned air from entering or by reducing the flow of conditioned air from the HVAC unit into the zone.
- the other slave thermostat units, 1170 B, 1170 C may have temperature settings that are the same or different from the master thermostat 1130 unit setting.
- Each slave thermostat 1170 B,C may also control the opening or closing of the louvers of a respective register 1150 B,C,D through a control channel 1190 B, C depending on its temperature setting.
Abstract
An air conditioning register including a plurality of adjustable slats coupled to respective pinion gears. The pinion gears may engage with a rack gear so that a linear motion of the rack gear translates into a rotational motion of the pinion gears. A driving gear coupled to a shaft may be used to drive the rack gear. The shaft can be driven by a manual tool of suitable length, or by electrical or electronic methods. The manual tool and/or electronic methods may be so designed that a user can rotate the shaft without being in close proximity to the register.
Description
- 1. Field of the Invention
- The present invention relates to heating, ventilating and air conditioning (HVAC) equipment and, more particularly, to an HVAC register having one or more gear-driven adjustable slats.
- 2. Description of Related Art
- Heating, ventilating and air conditioning (HVAC) units are used in residential, industrial and office buildings, and in marine environments such as aquariums, where humidity and temperature must all be closely regulated whilst maintaining safe and healthy conditions within. The HVAC units are usually designed to provide thermal comfort, acceptable indoor air quality, and reasonable installation, operation, and maintenance costs. These units can provide ventilation, reduce air infiltration, and maintain pressure relationships between spaces.
- Such units commonly include multiple registers for air distribution. The registers supply conditioned air from air ducts to various zones within a room. Typically, a register may have fixed slats or louvers that provide constant air flow, or adjustable slats to adjust the airflow to the various zones. Constant airflow registers are used when temperature control for individual zones is not required. On the other hand, when the rate and direction of airflow need to be controlled, registers with adjustable slats are used.
- In the registers with movable slats, the slats can be manually adjusted by operating a lever. However, this requires the person adjusting the slats to be in close proximity to the register. This can be a problem, especially in cases when the register is installed at a considerable height from the ground, such as on the ceiling of a room, or near the top of a wall.
- In one embodiment, an air conditioning register includes at least one adjustable slat coupled to at least one pinion gear. The pinion gear may engage a rack gear such that a linear motion of the rack gear translates into a rotational motion of the pinion gear. The rack gear may be driven by a driving gear coupled to a shaft. In one embodiment, the shaft may be driven manually. In another embodiment, the shaft may be driven by at least one powered actuator.
- For a more complete understanding of the disclosure and the advantages thereof, reference is now made to the accompanying drawings wherein similar or identical reference numerals represent similar or identical features and components.
-
FIG. 1 illustrates an exemplary register for air conditioning having adjustable slats; -
FIGS. 2 a, 2 b and 2 c illustrate different perspective views of the register; -
FIG. 3 illustrates a perspective view of the register from yet another perspective; -
FIG. 4 illustrates the register placed in a frame according to one embodiment of the current disclosure; -
FIG. 5 illustrates a register coupled to a frame according to one embodiment of the current disclosure; -
FIG. 6 illustrates a perspective view of the register coupled to the frame; -
FIG. 7 illustrates an isometric view of a subassembly that may be used to control the operation of the gears; -
FIG. 8 is a front view of the motor and mounting bracket illustrated inFIG. 7 ; -
FIG. 9 is a side view of the motor supported on a mounting plate by a mounting bracket; -
FIG. 10 illustrates an exemplary heating, ventilation, and air conditioning unit with multiple registers according to one embodiment of the current disclosure; and -
FIG. 11 illustrates an exemplary heating, ventilation, and air conditioning unit with multiple registers and multiple controls according to one embodiment of the current disclosure. - In the following discussion, numerous specific details are set forth to provide a thorough understanding of the present invention. However, those skilled in the art will appreciate that the present invention may be practiced without such specific details. In other instances, well-known elements have been illustrated in simplified form in order not to obscure the present invention in unnecessary detail. Additionally, for the most part, specific details, and the like have been omitted inasmuch as such details are not considered necessary to obtain a complete understanding of the present invention, and are considered to be within the understanding of persons of ordinary skill in the relevant art.
-
FIG. 1 illustrates a perspective view of aregister 100 in an exemplary embodiment. Theregister 100 includes a plurality of gear-drivenadjustable slats register 100 is used. For example, theregister 100 would generally comprise one or more slats 106 and the configuration of the slats 106 may be straight or curved. - The
register 100 includes ahollow frame 104 that includes a horizontal backmounting plate portion 144 withlateral frame portions 102, andtransverse frame portions lateral frame portions 102. - Each of the slats 106 may be pivotably mounted to one of the transverse frame portions, such as
frame portion 122, at one end. At the other end, each slat may be coupled to a pinion gear, such as 108A, 108B and 108C, collectively referred to as 108 hereafter. Thus, an axis of each slat may be parallel to thelateral frame portion 102. This structural arrangement may cause the slats 106 to rotate when thepinion gears 108 rotate. Thepinion gears 108 can be rotated by arack gear 118 through a first set ofgear teeth 116 present on a first face of therack gear 118. - The
rack gear 118 can engage with adriving gear 110 through a second set ofgear teeth 124 on a second face of therack gear 118. In the embodiment shown, the first set ofgear teeth 116 on the first face ofrack gear 118 are adjacent the second set ofgear teeth 124 on the second face ofrack gear 118. Alternatively, the first set ofgear teeth 116 and the second set ofgear teeth 124 may be disposed on opposing faces ofrack gear 118. Therack gear 118 slides over the frame of theregister 104 when moved by thedriving gear 110, and may be supported by a suitable structural feature such as a set ofguides 119. Ashaft 112 may be supported by abearing assembly 134 and coupled to thedriving gear 110 such that a rotation of the shaft translates into a corresponding rotation of thedriving gear 110. - In operation, when the
shaft 112 rotates, thedriving gear 110 rotates correspondingly. The rotatingdriving gear 110 drives therack gear 118 in a linear direction. Therack gear 118 engages with and rotates thepinion gears 108, causing the slats 106 to also rotate. On rotation, the slats 106 may control the airflow by changing the direction and rate of air being circulated. - In one embodiment, to open vents to a particular setting using the slats 106, the
shaft 112 can be maneuvered in a clockwise direction. Inversely, to close the vents using slats 106, theshaft 112 can be maneuvered in a counter-clockwise direction. - The
shaft 112 can extend in a direction that makes theshaft 112 easily accessible. For example, theshaft 112 can extend vertically downwards from a ceiling register. In other embodiments, the axis of theshaft 112 can be oriented at an angle or vertically relative to theregister 100. - In one embodiment, an
electric motor 126 or any suitable powered actuator may be electrically connected to an external control unit such as a wall fixture (not shown) or aremote control unit 130. Theremote control unit 130 may include an Infra-Red (IR)receiver 136, radio frequency (RF)antenna 132 or some other type of wireless link as would be apparent to one skilled in the art. Theremote control unit 130 may be coupled usingwiring 128 to theelectric motor 126. Theelectric motor 126 may be externally mounted to and supported by a horizontal back mountingplate portion 144. Theremote control unit 130 can be used to rotate thedrive shaft 112 to which is coupled therotating driving gear 110. Thedrive shaft 112, drivinggear 110,rack gear 118 and pinion gears 108 provide a quick and safe mechanism to control the slats 106 and alter the airflow entering a room. -
FIGS. 2 a, 2 b and 2 c illustrate different perspective views of theregister 100.FIG. 2 a illustrates thetop view 200 of theregister 100, whileFIGS. 2 b and 2 c show the front view and a side view. - As described above, each of the slats 106 may be pivotably mounted to the
frame member 122 at one end via couplings such as rods 202 a, 202 b, and 202 c, collectively referred to as 202 hereafter. The other end of each of the slats 106 may be coupled to the pinion gears 108 via couplings such as rods 204 a, 204 b, and 204 c, collectively referred to as 204 hereafter. - The pinion gears 108 can engage the
rack gear 118 via the first set ofgear teeth 116 present on therack gear 118. Therack gear 118 can also engage to thedriving gear 110 via the second set ofgear teeth 124 present on therack gear 118. When thedriving gear 110 is rotated, for example by theshaft 112, thedriving gear 110 may cause therack gear 118 to move in a linear direction. The linear motion of therack gear 118 translates into a rotary motion of the pinion gears 108 and further into a rotary motion of the slats 106. -
FIG. 3 illustrates aperspective view 300 of theregister 100 from yet another perspective. This is a perspective view of the mechanism by which the slats 106 in theregister 100 can be moved. Theperspective view 300 illustrates how the second set ofgear teeth 124 present onrack gear 118 engage thedriving gear 110 and the first set ofgear teeth 116 present onrack gear 118 engage the pinion gears 108. Theperspective view 300 also illustrates how the slats 106 are coupled to the pinion gears 118 at one end via the rods 204 and to theframe 122 at the other end via the rods 202. -
FIG. 4 illustrates theregister 100 placed in a frame in an exemplary embodiment. Theframe 400 can be any vent frame known in the art. -
FIG. 5 illustrates a register 506 coupled to a frame 514 in an exemplary embodiment. The register 506 is an exemplary implementation of theregister 100 and can be coupled to the frame 514 at multiple points such as 502 a and 502 b, collectively referred to as 502 hereafter. One of ordinary skill in the art will understand that the location and the number of the points 502 may vary. In this embodiment, theshaft 112 may be manually maneuvered by ahandle 540 or some other device or tool, such as a screwdriver, hexagonal key or Allen wrench, a ratchet drive or the like, coupled to theshaft 112. Thehandle 540 may be elongated and of sufficient length to avoid the need for a step stool or ladder to reach the register 506 and adjust the slats 106. Adjusting the slats 106 may entail moving the slats 106 in a direction that enlarges the register 506 opening and increases the flow of air through the slats 106, or moving the slats 106 in a direction that decreases the register 506 opening and diminishes the flow of air through the slats 106. Thehandle 540 may be coupled through thedriving gear 110 to theshaft 112 by means of a screw, socket, bolt or other attachment means well known to one of ordinary skill in the art. Thehandle 540, drivinggear 110 andshaft 112 assembly may be supported and secured to the register 506 by a mountingplate 142 that is attached to the register 506. - The frame 514 includes multiple louvers placed in various orientations, such as
louvers 510 placed parallel to the slats 106 andlouvers 508 placed perpendicular to the slats 106. It will be understood that the placement of thelouvers louvers - The frame 514 can be coupled to the register 506 at multiple points such as 504a and 504 b, collectively referred to as 504, present in the frame portion 512. It will be understood that the location and number of the points 504 correspond to the points 502 in the register 506.
-
FIG. 6 illustrates aperspective view 600 of the register 506 coupled to the frame 514 as may be visible to a user during operation of the register 506. The horizontally oriented louvers 604 and vertically oriented louvers 602 inframe 600 correspond to thelouvers -
FIG. 7 illustrates asubassembly 700 that includes theelectric motor 126, pinion gears 108 and rack gears 118. A mountingbracket 710 may support or house theelectric motor 126 that may be secured to a horizontalback mounting plate 720. In operation, as thedriving gear 110 rotates on the first set ofgear teeth 124 on therack gear 118, therack gear 118 moves up and down. The pinion gears 108 that are engaged with the second set ofgear teeth 116 rotate corresponding to the motion of thedriving gear 110 and control the movement of the louvers 106. -
FIG. 8 is a frontdetailed view 800 of a mounting arrangement for theelectric motor 126 supported by the mountingbracket 710 and attached to the horizontalback mounting plate 720. -
FIG. 9 is a side cutaway view of the mounting arrangement forelectric motor 126 as depicted inFIG. 7 . The electric motor may be attached to the mountingplate 720 using attachment means commonly known to one skilled in the art. The mountingbracket 710 may be attached to the horizontalback mounting plate 720 and secured to themotor 126 at the bearingassembly section 134. -
FIG. 10 illustrates a heating, ventilation and air conditioning (HVAC)system 1000.System 1000 includes a central airhandling HVAC unit 1010 and an associatedHVAC controller 1020. Thecentral HVAC unit 1010 may be operational to provide conditioned air to one or more interior environments or zones through supply registers 1050. Air leaves an interior environment zone and is returned to thecentral HVAC unit 1010 throughreturn register 1060. - The
HVAC controller 1020 includes switches and indicators well known to one of ordinary skill in the art to electronically engage and directly control the internal mechanisms and functions of theHVAC unit 1010. TheHVAC unit 1010 andHVAC controller 1020 may be part of a single modular unit using common housing. Alternatively, theHVAC unit 1010 andHVAC controller 1020 could be separately located from each other. - The
registers 1050 may be coupled toHVAC controller 1020 via respective control channels 1090 A-D. The control channels 1090 A-D may be any wired or wireless electrical control medium including, but not limited to, optical, copper wiring, infrared (IR) light or radio frequency (RF) or other suitable media. It must be noted that onesupply register 1050, onereturn register 1060 and/or a plurality ofsupply registers 1050 and returnregisters 1060 may be situated in one interior zone, or a plurality of interior zones depending on customer configuration. Supply registers 1050 and returnregister 1060 may include louvers (not shown) that may be removable or built-in. - In operation, the
central HVAC unit 1010 distributes conditioned air throughsupply ductwork 1040 and delivers the conditioned air through at least onesupply register 1050 that may be situated in an interior location. The air of the interior location may be returned through areturn register 1060 to thecentral HVAC unit 1010 throughreturn ductwork 1070.System 1000 may configure the louvers of asupply register 1050 to adjust, i.e. increase or decrease, the flow of air through theregister 1050. - In one embodiment,
system 1000 includes amaster thermostat 1030 unit that senses temperature. Themaster thermostat 1030 unit may include a switch that controls heating and/or cooling modes of operation.Master thermostat 1030 unit electronically couples to theHVAC controller 1020 throughcontrol channel 1090M and controls the operation of theHVAC controller 1020. The control channels 1090 may be wired, wireless or other suitable type of electrical control media. TheHVAC controller 1020 operates thecentral HVAC unit 1010 and theregister 1050 louvers, corresponding to themaster thermostat 1030 unit setting. - For example, the
master thermostat 1030 unit may be set to 75 degrees Fahrenheit (75° F.). Through itscontrol channel 1090M, themaster thermostat 1030 unit may control theHVAC controller 1020 operation and run theHVAC unit 1010 until thethermostat 1030 senses conditions at its location have achieved the desired temperature setting. TheHVAC controller 1020 may also control the louver opening ofsupply registers 1050 through control channels 1090. The HVAC controller may open or close the louvers of theregisters 1050 to increase or decrease the flow of air through the register based on the 75 degrees Fahrenheit setting of themaster thermostat 1030. Once the setting is achieved the HVAC controller may close the register louvers. Themaster thermostat 1030 unit may be mounted to a wall or situated at some other location and may be operated manually or by remote control. -
FIG. 11 illustrates another embodiment of aHVAC system 1100 with thermostatically controlled registers 1150.System 1100 includescentral HVAC unit 1110, an associatedHVAC controller 1120, at least one air supply outlet register 1150 and at least oneair return register 1160. Supply registers 1150 A-D and returnregisters 1160 may include louvers (not shown) that may be removable or built-in. The louvers of the supply registers may adjust to increase or decrease the supply of air through the registers. -
System 1100 may include amaster thermostat 1130 unit electronically coupled to theHVAC controller 1120 throughcontrol channel 1190M.System 1100 may also include one or more slave thermostats 1170 A-C electronically coupled throughrespective control channels 1190 A-C to a respective supply register 1150 A-D. Thecontrol channel 1190 may be wired, wireless or other suitable type of electrical control media. One of ordinary skill in the art should understand that thesystem 1100 may be configured to include multiple slave thermostats and each respective slave thermostat 1170 A-C may control one or more supply registers 1150. The slave thermostats 1170 A-C are preferably located within the same zone as the supply register 1150 A-D it controls or may be located in some other nearby or accessible location. The slave thermostats 1170 A-C and themaster thermostat 1130 may be operated by manual or remote control. - In this embodiment, the
HVAC controller 1120 operates thecentral HVAC unit 1110 in dependence on or corresponding to themaster thermostat 1130 unit setting. The supply register 1150 louvers are adjusted in response to a setting of a slave thermostat 1170 to which it may be electronically coupled. - For example, the
master thermostat 1130 unit may be set to 75 degrees Fahrenheit (75° F.), and theHVAC controller 1020 may run theHVAC unit 1110 until thethermostat 1130 senses conditions at its location have achieved the desired temperature setting. - A zone that is controlled by a slave thermostat 1170 may be configured to set its own desired temperature to regulate the temperature of its specific zone of operation. For example, although the
master thermostat 1130 unit may be set to 75° F.,slave thermostat 1170A may be set to 65 degrees Fahrenheit (65° F). When the 65° F. temperature is reached in the zone controlled byslave thermostat 1170A,slave thermostat 1170A may completely or partially close the louvers ofsupply register 1150A through itscontrol channel 1190A to maintain the desired temperature by sealing the zone to prevent any additional conditioned air from entering or by reducing the flow of conditioned air from the HVAC unit into the zone. Similarly, the other slave thermostat units, 1170B, 1170C may have temperature settings that are the same or different from themaster thermostat 1130 unit setting. Eachslave thermostat 1170 B,C may also control the opening or closing of the louvers of arespective register 1150 B,C,D through acontrol channel 1190 B, C depending on its temperature setting. - Having thus described the present invention by reference to certain of its preferred embodiments, it is noted that the embodiments disclosed are illustrative rather than limiting in nature and that a wide range of variations, modifications, changes, and substitutions are contemplated in the foregoing disclosure and, in some instances, some features of the present invention may be employed without a corresponding use of the other features. Many such variations and modifications may be considered desirable by those skilled in the art based upon a review of the foregoing description of preferred embodiments. Accordingly, it is appropriate that the appended claims be construed broadly and in a manner consistent with the scope of the invention.
Claims (26)
1. A register with a mechanism for changing orientation of a slat, the register comprising:
a slat coupled to a pinion gear;
a rack gear that engages the pinion gear;
a driving gear that drives the rack gear; and
a shaft that couples with the driving gear.
2. The register of claim 1 , wherein the rack gear engages the pinion gear via a first set of gear teeth on the rack gear, and further wherein the driving gear drives the rack gear via a second set of gear teeth on the rack gear.
3. The register of claim 1 , wherein the pinion gear comprises a semi-circular gear.
4. The register of claim 1 , wherein the slat comprises a curved blade.
5. The register of claim 1 , wherein a rotation of the shaft translates into a corresponding rotation of the driving gear, which in turn drives the rack gear linearly and rotates the pinion gear.
6. The register of claim 5 , wherein the rotation of the pinion gear translates into a corresponding rotary motion of the slat coupled to the pinion gear, and further wherein the rotary motion of the slat changes an orientation of the slat.
7. The register of claim 6 , wherein the rotary motion of the slat further changes a direction of air flow through the register.
8. The register of claim 1 , wherein an axis of the shaft lies in a plane perpendicular to a plane of the driving gear.
9. The register of claim 1 , wherein a free end of the shaft engages with a manual tool via a coupling.
10. The register of claim 1 , further comprising an electronically controlled actuator that remotely rotates the shaft.
11. The register of claim 1 , further comprising a hollow frame having a lateral frame portion and a transverse frame portion bridging the lateral frame portion, wherein one end of the slat is pivoted towards the transverse frame portion, and another end of the slat is coupled to the pinion gear.
12. The register of claim 11 , further comprising a grille frame coupled to the hollow frame.
13. A register for controlling air flow comprising:
a hollow frame having lateral frame portions and transverse frame portions bridging the lateral frame portions;
at least one slat, wherein one end of a slat of the plurality of slats is pivoted to one of the transverse frame portions, and another end of the slat is coupled to a pinion gear such that an axis of each slat is parallel to the lateral frame portions;
a rack gear that engages, via a first set of gear teeth, with the pinion gear coupled to the slat and, via a second set of gear teeth, with a driving gear; and
a shaft that couples with the driving gear such that a rotation of the shaft translates into a corresponding rotation of the driving gear, which drives the rack gear linearly to rotate the pinion gear that rotates the slat.
14. The register of claim 13 , further comprising a grille frame coupled to the hollow frame.
15. The register of claim 13 , wherein a slat comprises a curved blade.
16. The register of claim 13 , wherein the register is a ceiling register.
17. The register of claim 13 , wherein the axis of the shaft lies in a plane perpendicular to the plane of the driving gear.
18. The register of claim 13 , wherein the free end of the shaft engages with a manual tool via a coupling.
19. The register of claim 13 , further comprising an electronically controlled actuator that remotely rotates the shaft.
20. The register of claim 13 , wherein rotating the shaft in a clockwise direction increases air flow through the register and rotating the shaft in an anti-clockwise direction decreases air flow through the register.
21. A heating ventilating and air conditioning (HVAC) system, the system comprising:
a central HVAC unit;
a controller associated with the HVAC unit;
at least one supply register electronically coupled to the controller; and
a thermostat electronically connected to the controller and the at least one supply register,
wherein the register comprises louvers that adjust depending on a setting of the thermostat.
22. The HVAC system of claim 21 , wherein the thermostat is operated by remote control.
23. The HVAC system of claim 21 , wherein the register louvers are removable.
24. A heating ventilating and air conditioning (HVAC) system, the system comprising:
a central HVAC unit;
a controller associated with the HVAC unit;
at least one supply register electronically coupled to the controller;
a master thermostat electronically coupled to the controller; and
a slave thermostat electronically connected to the at least one supply register,
wherein the at least one register comprises louvers that adjust depending on a setting of the slave thermostat.
25. The HVAC system of claim 24 , wherein the slave thermostat setting is remotely controlled.
26. The HVAC system of claim 24 , wherein the register louvers are removable.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/954,208 US20090149123A1 (en) | 2007-12-11 | 2007-12-11 | Register for air conditioning |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/954,208 US20090149123A1 (en) | 2007-12-11 | 2007-12-11 | Register for air conditioning |
Publications (1)
Publication Number | Publication Date |
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US20090149123A1 true US20090149123A1 (en) | 2009-06-11 |
Family
ID=40722152
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/954,208 Abandoned US20090149123A1 (en) | 2007-12-11 | 2007-12-11 | Register for air conditioning |
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US (1) | US20090149123A1 (en) |
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US20120003918A1 (en) * | 2010-07-02 | 2012-01-05 | Mcreynolds Alan | Self-powered fluid control apparatus |
US20120164934A1 (en) * | 2009-07-21 | 2012-06-28 | Apreco Limited | Venting Device |
US20120222851A1 (en) * | 2011-03-04 | 2012-09-06 | GM Global Technology Operations LLC | Hvac system damper |
US20130029583A1 (en) * | 2010-04-09 | 2013-01-31 | Gree Electric Appliances, Inc. Of Zhuhai | Wall hanging air conditioner |
US20130092474A1 (en) * | 2011-10-12 | 2013-04-18 | Michael William Magnussen | Ladder assembly for equipment |
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US20130165037A1 (en) * | 2009-08-31 | 2013-06-27 | Daniel P. Casey | Novel Louver System |
US20140326794A1 (en) * | 2013-01-30 | 2014-11-06 | Adjustavent, Llc | Adjustable register vent and grill assembly designed to fit all size standard air distribution boot openings |
US20150020452A1 (en) * | 2013-07-16 | 2015-01-22 | Nien Made Enterprise Co., Ltd. | Apparatus for controlling slats of sash |
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US20150377502A1 (en) * | 2013-12-20 | 2015-12-31 | Shahram Masoudnia | Thermo Electric Register system |
US9260916B1 (en) * | 2013-09-09 | 2016-02-16 | Tabatha T Brotherton | Combination fire-truck ladder and slide |
US20160052368A1 (en) * | 2014-08-20 | 2016-02-25 | Ford Global Technologies, Llc | Line register |
JP2016032958A (en) * | 2014-07-31 | 2016-03-10 | 豊田合成株式会社 | Air conditioning register |
US9291357B1 (en) * | 2013-02-15 | 2016-03-22 | EnTouch Controls Inc. | Redundant and selectable gateway and control elements for remote connected thermostats |
US20170078892A1 (en) * | 2014-05-05 | 2017-03-16 | Huawei Technologies Co., Ltd. | Remote Electrical Tilt Antenna, Base Station, and Method for Matching RCU with RF Port |
US20180087799A1 (en) * | 2016-09-28 | 2018-03-29 | Johnson Controls Technology Company | Tethered control for direct drive motor integrated into damper blade |
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US10036196B2 (en) * | 2015-09-17 | 2018-07-31 | Nien Made Enterprise Co., Ltd. | Automatic closing structure for slats of sash |
US10113765B1 (en) * | 2011-10-03 | 2018-10-30 | Matthew Ryan May | Remote controlled vent register |
US10132083B1 (en) | 2009-08-31 | 2018-11-20 | Daniel P. Casey | Systems for collecting rainwater and recycling grey water |
US20190017716A1 (en) * | 2017-07-13 | 2019-01-17 | Jude Osamor | Airflow Control Assembly |
US11149980B2 (en) * | 2018-06-12 | 2021-10-19 | Ademco Inc. | Retrofit damper with pivoting connection between deployment and operational configurations |
US20210341172A1 (en) * | 2019-02-04 | 2021-11-04 | Air Distribution Technologies Ip, Llc | Floor air diffuser |
US11300319B2 (en) | 2018-06-12 | 2022-04-12 | Ademco Inc. | Retrofit damper assembly |
US11306941B2 (en) * | 2018-06-12 | 2022-04-19 | Ademco Inc. | Retrofit damper optimized for universal installation |
US20220120478A1 (en) * | 2020-10-21 | 2022-04-21 | Heatcraft Refrigeration Products Llc | Adiabatic condenser with split cooling pads |
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US20130165037A1 (en) * | 2009-08-31 | 2013-06-27 | Daniel P. Casey | Novel Louver System |
US20150079895A1 (en) * | 2009-08-31 | 2015-03-19 | Daniel P. Casey | Novel Louver System |
US20130029583A1 (en) * | 2010-04-09 | 2013-01-31 | Gree Electric Appliances, Inc. Of Zhuhai | Wall hanging air conditioner |
US20120003918A1 (en) * | 2010-07-02 | 2012-01-05 | Mcreynolds Alan | Self-powered fluid control apparatus |
US8727843B2 (en) * | 2010-07-02 | 2014-05-20 | Hewlett-Packard Development Company, L.P. | Self-powered fluid control apparatus |
US20120222851A1 (en) * | 2011-03-04 | 2012-09-06 | GM Global Technology Operations LLC | Hvac system damper |
US10113765B1 (en) * | 2011-10-03 | 2018-10-30 | Matthew Ryan May | Remote controlled vent register |
US20130092474A1 (en) * | 2011-10-12 | 2013-04-18 | Michael William Magnussen | Ladder assembly for equipment |
US20180320443A1 (en) * | 2011-10-12 | 2018-11-08 | Access Innovations Pty Ltd | Ladder assembly for equipment |
US11655675B2 (en) * | 2011-10-12 | 2023-05-23 | Access Innovations Global LP | Ladder assembly for equipment |
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CN103134165A (en) * | 2013-01-05 | 2013-06-05 | 芜湖博耐尔汽车电气系统有限公司 | Groove-type double-control motion mechanism of air door gear of automobile air conditioner |
US20140326794A1 (en) * | 2013-01-30 | 2014-11-06 | Adjustavent, Llc | Adjustable register vent and grill assembly designed to fit all size standard air distribution boot openings |
US9291357B1 (en) * | 2013-02-15 | 2016-03-22 | EnTouch Controls Inc. | Redundant and selectable gateway and control elements for remote connected thermostats |
US10057353B2 (en) | 2013-02-15 | 2018-08-21 | EnTouch Controls, Inc. | Redundant and selectable gateway and control elements for remote connected thermostats |
US20150020452A1 (en) * | 2013-07-16 | 2015-01-22 | Nien Made Enterprise Co., Ltd. | Apparatus for controlling slats of sash |
US9038314B2 (en) * | 2013-07-16 | 2015-05-26 | Nien Made Enterprises Co., Ltd. | Apparatus for controlling slats of sash |
US9260916B1 (en) * | 2013-09-09 | 2016-02-16 | Tabatha T Brotherton | Combination fire-truck ladder and slide |
US20150377502A1 (en) * | 2013-12-20 | 2015-12-31 | Shahram Masoudnia | Thermo Electric Register system |
US9863657B2 (en) * | 2013-12-20 | 2018-01-09 | Shahram Masoudnia | Thermo electric register system |
US9763108B2 (en) * | 2014-05-05 | 2017-09-12 | Huawei Technologies Co., Ltd. | Remote electrical tilt antenna, base station, and method for matching RCU with RF port |
US20170078892A1 (en) * | 2014-05-05 | 2017-03-16 | Huawei Technologies Co., Ltd. | Remote Electrical Tilt Antenna, Base Station, and Method for Matching RCU with RF Port |
JP2016032958A (en) * | 2014-07-31 | 2016-03-10 | 豊田合成株式会社 | Air conditioning register |
US9950592B2 (en) * | 2014-08-20 | 2018-04-24 | Ford Global Technologies, Llc | Line register |
US20160052368A1 (en) * | 2014-08-20 | 2016-02-25 | Ford Global Technologies, Llc | Line register |
US10821812B2 (en) | 2014-08-20 | 2020-11-03 | Ford Global Technologies, Llc | Line register |
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US10036196B2 (en) * | 2015-09-17 | 2018-07-31 | Nien Made Enterprise Co., Ltd. | Automatic closing structure for slats of sash |
US20180087799A1 (en) * | 2016-09-28 | 2018-03-29 | Johnson Controls Technology Company | Tethered control for direct drive motor integrated into damper blade |
US10704800B2 (en) * | 2016-09-28 | 2020-07-07 | Air Distribution Technologies Ip, Llc | Tethered control for direct drive motor integrated into damper blade |
US20190017716A1 (en) * | 2017-07-13 | 2019-01-17 | Jude Osamor | Airflow Control Assembly |
US11300319B2 (en) | 2018-06-12 | 2022-04-12 | Ademco Inc. | Retrofit damper assembly |
US11306941B2 (en) * | 2018-06-12 | 2022-04-19 | Ademco Inc. | Retrofit damper optimized for universal installation |
US11359828B2 (en) * | 2018-06-12 | 2022-06-14 | Ademco Inc. | Modular retrofit damper system |
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