US3538341A - Appliance with variable speed control - Google Patents
Appliance with variable speed control Download PDFInfo
- Publication number
- US3538341A US3538341A US3538341DA US3538341A US 3538341 A US3538341 A US 3538341A US 3538341D A US3538341D A US 3538341DA US 3538341 A US3538341 A US 3538341A
- Authority
- US
- United States
- Prior art keywords
- appliance
- speed control
- motor
- variable speed
- power source
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/153—Arrangements in which a pulse is delivered at the instant when a predetermined characteristic of an input signal is present or at a fixed time interval after this instant
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
- A47J43/046—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven with tools driven from the bottom side
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
- A47J43/046—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven with tools driven from the bottom side
- A47J43/0465—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven with tools driven from the bottom side with magnetic drive
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
- A47J43/07—Parts or details, e.g. mixing tools, whipping tools
- A47J43/08—Driving mechanisms
- A47J43/085—Driving mechanisms for machines with tools driven from the lower side
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/505—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
- H02M7/515—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
- H02M7/5152—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with separate extinguishing means
- H02M7/5155—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with separate extinguishing means wherein each commutation element has its own extinguishing means
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/01—Shaping pulses
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/153—Arrangements in which a pulse is delivered at the instant when a predetermined characteristic of an input signal is present or at a fixed time interval after this instant
- H03K5/1536—Zero-crossing detectors
Definitions
- This invention relates, in general, to appliances and, more particularly, to a power source therefor.
- appliance motor development is one of speed control. It has become Well known, at least within recent years, that appliance motor speeds can be controlled by means of solid state circuitry, a separate circuit being required for each appliance. Due to the higher cost of such circuits, appliances utilizing them have not met with wholehearted acceptance by the consumer. 7
- the general object of this invention is to provide a new and improved control for appliances.
- a variable power source for controlling the motor speed of an automatic stirrer incorporated in the range.
- a conventional electrical outlet is conveniently mounted on the range and is connected through suitable leads and a selector switch, to the power source.
- the foregoing switch can be, as desired by the user, employed to selectively connect the power source to either the automatic stirrer motor or the electrical outlet.
- Such an arrangement may also be incorporated in a hand held appliance.
- FIG. 1 is a perspective view of a range incorporating the invention
- FIG. 2 is an elevational view, which is partly diagrammatical, of an automatic stirrer forming a part of 3,538,341 Patented Nov. 3, 1970 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
- reference character 10 designates generally a cooking range having a plurality of burners 11 adapted, in a conventional manner, to support cooking utensils, or vessels, such a vessel being indicated at 12.
- the vessel 12 is made of any non-magnetic material, for example, aluminum, thereby being compatible with automatic stirring devices employing magnetic coupling between the drive mechanism and the agitator.
- A-n agitator structure 13 having a magnet support or member (not shown) is disposed within the vessel 12 where it is rotated by means of an electric motor 14, shown schematically in FIG. 2, and a permanent magnet 16 secured to the shaft 17 of the motor 14.
- the motor 14 is adapted to be connected to line conductor L1 by means of a selector switch 18, actuatable by a control knob 19 carried by a back splasher panel 21 of the range 10.
- the selector switch in a second operable position thereof (indicated by dotted line) is also adapted, as desired by the user, to connect the conductor L1 to an electrical outlet 22 carried by the back splasher panel 21.
- a motor speed control indicated in block form by reference character 23 may be of any well known type in the prior art for example, as shown and described in US. Pat. No. 3,209,228 or at p. 16 of Electrical Industries magazine, September 1963 edition.
- a speed control knob 24 serves to adjust a variable resistor of the speed control to thereby change the firing point of the solid state component thereof.
- Cooking apparatus said apparatus comprising:
- a drive system including a motor for an automatic stirring device
- control means for supplying an infinitely variable quantity of power
- switch means for selectively connecting an electric circuit between either said outlet and said control means or between said motor and said control means.
- a permanent magnet forming the drive member of the the magnetic drive coupling for an automatic stirrer, said permanent magnet being driven by said motor.
- an electrical circuit housed within said structure including a source of infinitely variable power
Description
- Nov. 3, 1970 G, PANKQW 3,538,341
APPLIANCE WITH VARIABLE SPEED CONTROL Filed Nov. 20, 1968 FIG.3.
SPEED CONTROL United States Patent ()1 ice 3,538,341 APPLIANCE WITH VARIABLE SPEED CONTROL Edmund G. Pankow, Mansfield, Ohio, assignor to Westinghouse Electric Corporation, Pittsburgh, Pa., a corporation of Pennsylvania Filed Nov. 20, 1968, Ser. No. 777,365 Int. Cl. H02j 3/14 US. Cl. 307-38 4 Claims ABSTRACT OF THE DISCLOSURE A variable power source and selector switch associated therewith. The power source forms an integral part of an appliance, for example, a cooking range, having an automatic stirrer energized by the variable power source. The appliance is also provided with an electrical outlet for other appliances such as drills, hand mixers and blenders. The selector switch serves to selectively establish an electrical circuit between the variable power source and the motor forming a part of the automatic stirrer or the electrical outlet.
BACKGROUND OF THE INVENTION This invention relates, in general, to appliances and, more particularly, to a power source therefor.
The emphasis, at least to a certain degree, in appliance motor development, is one of speed control. It has become Well known, at least within recent years, that appliance motor speeds can be controlled by means of solid state circuitry, a separate circuit being required for each appliance. Due to the higher cost of such circuits, appliances utilizing them have not met with wholehearted acceptance by the consumer. 7
Accordingly, the general object of this invention is to provide a new and improved control for appliances.
It is a more particular object of this invention to provide a new and improved speed control built into an appliance, which speed control can be utilized for other appliances thereby rendering, the otherwise more expensive speed control, more economical.
SUMMARY OF THE INVENTION Briefly, the above-cited objects are accomplished by the provision, in an electric range by way of example, a variable power source for controlling the motor speed of an automatic stirrer incorporated in the range. A conventional electrical outlet is conveniently mounted on the range and is connected through suitable leads and a selector switch, to the power source. The foregoing switch can be, as desired by the user, employed to selectively connect the power source to either the automatic stirrer motor or the electrical outlet. Such an arrangement, it will be appreciated, may also be incorporated in a hand held appliance.
Further objects and advantages of the present invention will become more apparent when considered in view of the following detailed description and drawings, forming a part hereof.
DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a range incorporating the invention;
FIG. 2 is an elevational view, which is partly diagrammatical, of an automatic stirrer forming a part of 3,538,341 Patented Nov. 3, 1970 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Referring now to the drawings, especially FIG. 1, reference character 10 designates generally a cooking range having a plurality of burners 11 adapted, in a conventional manner, to support cooking utensils, or vessels, such a vessel being indicated at 12. The vessel 12 is made of any non-magnetic material, for example, aluminum, thereby being compatible with automatic stirring devices employing magnetic coupling between the drive mechanism and the agitator.
A-n agitator structure 13 having a magnet support or member (not shown) is disposed within the vessel 12 where it is rotated by means of an electric motor 14, shown schematically in FIG. 2, and a permanent magnet 16 secured to the shaft 17 of the motor 14.
The motor 14 is adapted to be connected to line conductor L1 by means of a selector switch 18, actuatable by a control knob 19 carried by a back splasher panel 21 of the range 10. The selector switch in a second operable position thereof (indicated by dotted line) is also adapted, as desired by the user, to connect the conductor L1 to an electrical outlet 22 carried by the back splasher panel 21.
A motor speed control indicated in block form by reference character 23 may be of any well known type in the prior art for example, as shown and described in US. Pat. No. 3,209,228 or at p. 16 of Electrical Industries magazine, September 1963 edition. A speed control knob 24 serves to adjust a variable resistor of the speed control to thereby change the firing point of the solid state component thereof.
It will be appreciated by those skilled in the art that there has been disclosed an appliance having a motor and variable speed source therefor which source by means of a selector switch and an electrical outlet can be utilized to operate other appliances.
Since numerous changes may be made in the above described apparatus and dilferent embodiments of the invention may be made without departing from the spirit thereof, it is intended that all matter contained in'the foregoing description or shown in the accompanying drawings, shall be interpreted as illustrative and not in a limiting sense.
What is claimed is:
1. Cooking apparatus, said apparatus comprising:
a drive system including a motor for an automatic stirring device,
means for providing an infinitely variable quantity of power,
an electrical outlet mounted on said cooking apparatus,
and switch means for selectively establishing an electrical circuit between either of said motor or said electrical outlet and said variable power means.
2. In combination,
an electrical outlet for receiving a plug of an electric appliance,
control means for supplying an infinitely variable quantity of power,
a motor, and
switch means for selectively connecting an electric circuit between either said outlet and said control means or between said motor and said control means.
3. Structure as specified in claim 2 including,
a permanent magnet forming the drive member of the the magnetic drive coupling for an automatic stirrer, said permanent magnet being driven by said motor.
4. In combination,
housing structure for an appliance,
an electrical circuit housed within said structure including a source of infinitely variable power,
means in said housing structure constituting a first load for said source of variable power therein,
means carried by said housing structure for electrically connecting said source of variable power to a second load which is external to said housing structure,
and switch means for selectively completing the electrical circuit through said variable power source to either said first load orwsaid connecting means.
References Cited UNITED STATES PATENTS ROBERT K. SCHAEFER, Primary Examiner H. J. HOHAUSER, Assistant Examiner US. Cl. X.R.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1967D0053957 DE1613620B2 (en) | 1967-08-29 | 1967-08-29 | DEVICE FOR CONTROLLING AN INVERTER |
US77736568A | 1968-11-20 | 1968-11-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3538341A true US3538341A (en) | 1970-11-03 |
Family
ID=25972598
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US3538342D Expired - Lifetime US3538342A (en) | 1967-08-29 | 1968-08-28 | Device for controlling an inverter |
US3538341D Expired - Lifetime US3538341A (en) | 1967-08-29 | 1968-11-20 | Appliance with variable speed control |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US3538342D Expired - Lifetime US3538342A (en) | 1967-08-29 | 1968-08-28 | Device for controlling an inverter |
Country Status (5)
Country | Link |
---|---|
US (2) | US3538342A (en) |
CH (1) | CH516254A (en) |
DE (1) | DE1613620B2 (en) |
FR (1) | FR1578529A (en) |
GB (1) | GB1251339A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3937977A (en) * | 1974-08-26 | 1976-02-10 | Whirlpool Corporation | Combination disposer run and dishwasher disconnect switch for kitchen module |
US4911556A (en) * | 1989-03-17 | 1990-03-27 | Lim Technology Laboratories, Inc. | Turbulent stirring unit |
US20050183582A1 (en) * | 2003-08-21 | 2005-08-25 | Mcfadden Curt | Controls for magnetic stirrer and/or hot plate |
US20080239867A1 (en) * | 2007-03-28 | 2008-10-02 | Gilbert Donna J | Adjustable stir |
WO2014033652A1 (en) * | 2012-08-29 | 2014-03-06 | Koninklijke Philips N.V. | Cooking stove having a drive assembly for driving a food processing assembly in a pan |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3634748A (en) * | 1969-06-09 | 1972-01-11 | Bernhard Siegfried Rudert | Static inverter circuits |
US3798608A (en) * | 1972-12-15 | 1974-03-19 | Johnson Service Co | Digital signal transmission apparatus |
US4009430A (en) * | 1975-04-14 | 1977-02-22 | Partridge Donald F | Antiparallel commutated inverter |
US4323959A (en) * | 1978-05-10 | 1982-04-06 | Hewlett-Packard Company | Power supply with resonant inverter circuit using variable frequency control for regulation |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2439270A (en) * | 1946-02-28 | 1948-04-06 | Hotpoint Inc | Heating system |
US2951689A (en) * | 1958-03-24 | 1960-09-06 | Halogen Insulator And Seal Cor | Magnetic stirring bar |
US3210578A (en) * | 1962-01-12 | 1965-10-05 | Westinghouse Electric Corp | Multispeed motor connector |
US3264542A (en) * | 1963-06-28 | 1966-08-02 | Westinghouse Electric Corp | Multi-speed single-phase motor |
USRE26118E (en) * | 1966-11-29 | Timer with reversible motor |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3181053A (en) * | 1960-06-15 | 1965-04-27 | Thompson Ramo Wooldridge Inc | Regulated rectifier inverter circuit |
JPS4215061B1 (en) * | 1961-02-23 | 1967-08-22 | ||
US3407349A (en) * | 1961-12-26 | 1968-10-22 | Sperry Rand Corp | Inverter circuit |
GB1085364A (en) * | 1963-05-21 | 1967-09-27 | Ferranti Ltd | Improvements relating to inverters |
US3327225A (en) * | 1965-03-01 | 1967-06-20 | Rca Corp | Timing pulse generator |
-
1967
- 1967-08-29 DE DE1967D0053957 patent/DE1613620B2/en active Granted
-
1968
- 1968-07-11 CH CH1058368A patent/CH516254A/en not_active IP Right Cessation
- 1968-08-23 FR FR1578529D patent/FR1578529A/fr not_active Expired
- 1968-08-28 US US3538342D patent/US3538342A/en not_active Expired - Lifetime
- 1968-08-29 GB GB1251339D patent/GB1251339A/en not_active Expired
- 1968-11-20 US US3538341D patent/US3538341A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE26118E (en) * | 1966-11-29 | Timer with reversible motor | ||
US2439270A (en) * | 1946-02-28 | 1948-04-06 | Hotpoint Inc | Heating system |
US2951689A (en) * | 1958-03-24 | 1960-09-06 | Halogen Insulator And Seal Cor | Magnetic stirring bar |
US3210578A (en) * | 1962-01-12 | 1965-10-05 | Westinghouse Electric Corp | Multispeed motor connector |
US3264542A (en) * | 1963-06-28 | 1966-08-02 | Westinghouse Electric Corp | Multi-speed single-phase motor |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3937977A (en) * | 1974-08-26 | 1976-02-10 | Whirlpool Corporation | Combination disposer run and dishwasher disconnect switch for kitchen module |
US4911556A (en) * | 1989-03-17 | 1990-03-27 | Lim Technology Laboratories, Inc. | Turbulent stirring unit |
US20050183582A1 (en) * | 2003-08-21 | 2005-08-25 | Mcfadden Curt | Controls for magnetic stirrer and/or hot plate |
US20080239867A1 (en) * | 2007-03-28 | 2008-10-02 | Gilbert Donna J | Adjustable stir |
WO2014033652A1 (en) * | 2012-08-29 | 2014-03-06 | Koninklijke Philips N.V. | Cooking stove having a drive assembly for driving a food processing assembly in a pan |
CN104582551A (en) * | 2012-08-29 | 2015-04-29 | 皇家飞利浦有限公司 | Cooking stove having a drive assembly for driving a food processing assembly in a pan |
JP2015530910A (en) * | 2012-08-29 | 2015-10-29 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | Cooking stove having a drive assembly for driving a food processing assembly in a pan |
CN104582551B (en) * | 2012-08-29 | 2016-08-17 | 皇家飞利浦有限公司 | There is the ceramic hob cavity driving assembly of food process assembly in driving pot |
Also Published As
Publication number | Publication date |
---|---|
FR1578529A (en) | 1969-08-14 |
CH516254A (en) | 1971-11-30 |
DE1613620B2 (en) | 1972-10-26 |
DE1613620A1 (en) | 1970-12-03 |
GB1251339A (en) | 1971-10-27 |
US3538342A (en) | 1970-11-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5738496A (en) | Interchangeable plug-in circuit completion modules for varying the electrical circuitry of a ceiling fan | |
US3538341A (en) | Appliance with variable speed control | |
US3299226A (en) | Electrical switch for food blender with improved contact detent structure | |
US3562614A (en) | Starting switching means for a single-phase asynchronous motor | |
US3452215A (en) | Light bulb socket adapter | |
US4196330A (en) | Combination oven fully utilizing the current-supplying capability of a power source | |
ZA817991B (en) | Electrical switchgear control means | |
US5486972A (en) | AC powered electrical control device with logic level control | |
EP0124614A1 (en) | Oven cooker | |
US4463382A (en) | Automatic, remote signal source selector | |
US6081082A (en) | Rotatable inverter | |
US3546556A (en) | Universal power control module for portable tool or appliance control systems | |
US3015710A (en) | Thermostatic control unit | |
US2263420A (en) | Circuit for electric ranges | |
US2319490A (en) | Split-phase motor control | |
US6153869A (en) | AC/DC type microwave oven | |
GB1354845A (en) | Control or regulating equipment for an electric motor | |
US3117212A (en) | Electric heating systems | |
US2265023A (en) | Relay | |
US3391319A (en) | Control system for an alternating current motor | |
US1740436A (en) | Electric motor-driven intermittent-driving gear | |
KR100327168B1 (en) | Circuit for starting of induction motor | |
JPH0473523A (en) | Heating cooker | |
US5033107A (en) | Electric sauna heater | |
EP0041829A3 (en) | Motor speed control system |