US2262777A - Quick acting positive contact switch - Google Patents
Quick acting positive contact switch Download PDFInfo
- Publication number
- US2262777A US2262777A US357687A US35768740A US2262777A US 2262777 A US2262777 A US 2262777A US 357687 A US357687 A US 357687A US 35768740 A US35768740 A US 35768740A US 2262777 A US2262777 A US 2262777A
- Authority
- US
- United States
- Prior art keywords
- contact
- disc
- quick acting
- contact point
- contact switch
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/26—Snap-action arrangements depending upon deformation of elastic members
- H01H13/48—Snap-action arrangements depending upon deformation of elastic members using buckling of disc springs
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
- G04C3/001—Electromechanical switches for setting or display
Definitions
- This sleeve 20 has a projecting flange 22 formore securely anchoring it within the molded lower housing portion 23, in which is also secured the grounding flanged ring I2 and its attached contact pole I4.
- the upper molded housing portion 24 is secured to the lower housing portion 23 by means of a pressed metal casting 25 thereabouts, the upper housing portion 24 having a counterbored opening 26 through which the finger button I'I extends, the finger'button against the counterbored shoulder 28 by the pressure of the contact disc II and its rivet I6.
Description
Nov. 18, I941. I J, ROPER 2,262,777
QUICK ACTING POSITIVE CONTACT SWITCH Filed Sept. 21, 1940 INVENTOR JOHN I1. ROPE/Q Patented Nov. v18, 1941 UNITED STATES PATENT OFFICE QUICK ACTING POSITIVE CONTACT SWITCH John M. Roper, Washington, D. 0. Application September 21, 194o, sriai No. 357,687
4 Claims. (01. 200-159) (Granted under the act of March 3, 1883, as
amended April 30, 1928; 370 0. G. 757) This invention relates to a quick acting positive contact switch, and has for an object to provide a reliable positive 'quick acting contact switch for use in the electrical circuits of armament and other equipment on airplanes or elsewhere.
A further object of this invention is to provide a snap action switch for instantaneously making and breaking a circuit, thereby preventing delayed action in armament equipment, as in the release of bombs or the firing of guns.
A further object of this invention is to provide a quick action switch which may be located conveniently, such as on the end of the joy stick of a single place airplane.
A still further object of this invention is to provide a switch of simple construction and free from defective parts or parts liable to become defective in use, one sample switch of this inven- I tion having already been tested for 50,000 operations without any noticeable sign of deterioration or wear.
With the foregoing and other objects in view, the invention consists in the construction, combination and arrangement of parts hereinafter described and illustrated in the drawing, in which:
Fig. 1 is a sectional view through the switch of this invention; and
Fig. 2 is a partly sectional and partly elevational view of the grounding flanged ring and its attached contact.
There is shown at III the contact switch of this invention which includes a snap action con cave-convex disc II constructed of bronze or other resilient metal, and has its peripheral edge supported on a grounding flanged ring I2 to which is secured, as by silver solder I3, one of the contact poles I4. A tungsten contact point I5 is fastened to the disc II by means of a rivet I6 for making contact, when depressed by a finger button ll of insulating material, with the tungsten contact point I8 integrally mounted on a metal sleeve secured on the other contact pole 2|. This sleeve 20 has a projecting flange 22 formore securely anchoring it within the molded lower housing portion 23, in which is also secured the grounding flanged ring I2 and its attached contact pole I4. The upper molded housing portion 24 is secured to the lower housing portion 23 by means of a pressed metal casting 25 thereabouts, the upper housing portion 24 having a counterbored opening 26 through which the finger button I'I extends, the finger'button against the counterbored shoulder 28 by the pressure of the contact disc II and its rivet I6.
In operation, the electrical conductors of the desired circuit are suitably connected to the conto press against the top of rivet I6 and then the contact disc yields with a snap action, permitting a quick and positive contact of the tungsten contact point I5 with the tungsten contact point I8, thereby completing the circuit from the contact pole I4 through the grounding flanged ring I2, disc II, the tungsten contact points I 5 and I8, the sleeve 20 and the contact pole 2|. These tungsten contact points I5 and I8 are normally held one-sixteenth of aninch apart, sumcient to interrupt the circuit yet short enough to make practically an instantaneous completion of the circuit when the finger button I1 is depressed.
As shown in Fig. 2, it will be observed that the grounding flanged ring I2 has a recessed surface 30 on whichv the peripheral edge of the disc II rests and over which it moves with a wiping motion as the finger button I1 is depressed, thereby assuring a certain and clean connection between the disc I and the ring I2.
Other modifications and changes in the number and arrangements of the parts may be made by those skilled in the art without departing from the nature of the invention, within the scope of what is hereinafter claimed.
The invention described herein may be manufactured and/or used by or for the Government of the United States of America for govemmental purposes without the payment of any royalties thereon or therefor.
Having thus set forth and disclosed the nature of this invention, what is claimed is:
1. A quick acting push button positive contact switch comprising a concavo-convex disc, a flanged ring on which said concavo-convex disc rests, the peripheral edge of said disc be in wiping, self-cleaning contact with said ring, a contact point secured to the center of the concave side of said disc, push button means for depressing said disc to cause it to snap, a sec- II being provided with a flanged base 21 held 0nd contact point spaced from said first con- 2 i 2,262,777 r v i flanged ring, and an insulating housing molded tact point within the path of movement of said first contact point as it is moved by the snap action of said disc. and a contact pole member to which said second contact point is connected. 2. A quick acting push button contact switch comprising a concavo-convex disc. a flanged ring on which said concave-convex disc rests, a contact point secured to the center of the concave side of said disc, push button means for depressing said disc to cause it to snap, a second contact point spaced from saidflrst contact point within the path of movement of said first contact point as it is moved by the snap action of said disc, a contact pole member to which said second contact point is connected, a second contact pole member connected to said flanged ring,
and an insulating housing molded about said contact pole members and said flanged ring portion securing them in proper spaced relation.
3. A quick acting push button positive contact switch comprising a concavo-convex disc, 9.,
flanged ring on which said concavo-convex disc rests, a contact point secured to the center of the concave side-of said disc, push button means for depressing saidvdisc to cause it to snap, a second contact point spaced from said flrst contact point within the path of movement of said 5 first contact point as it is moved by the snap,
action 01' said disc. 8. contact pole member to which said second contact point is connected, 8. second contact pole member connected to said about said contact pole members and said flanged ring portion securing them in proper spaced relation, the peripheral edge of said concavo-convex disc resting in a recessed surface of said flanged ring, thereby providing a self-cleaning contact between said disc and said flanged ring.
4. A quick acting push button positive contact switch comprising a concavo-convex disc, a flanged ring on which said concavo-convex disc rests, a contact point secured to the center of the concave side of said disc, push button means flanged ring, an insulating housing portion molded about said contact pole members and said flanged ring portion securing them in proper spaced relation, 8. second insulating housing portion, said second portion being counterbored, said disc depressing push button means comprising a flanged flnger button extending through said counterbored housing portion, and a pressed metal casing securing said housing portions into a unitary structure.
' JOHN M. ROPER.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US357687A US2262777A (en) | 1940-09-21 | 1940-09-21 | Quick acting positive contact switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US357687A US2262777A (en) | 1940-09-21 | 1940-09-21 | Quick acting positive contact switch |
Publications (1)
Publication Number | Publication Date |
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US2262777A true US2262777A (en) | 1941-11-18 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US357687A Expired - Lifetime US2262777A (en) | 1940-09-21 | 1940-09-21 | Quick acting positive contact switch |
Country Status (1)
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Cited By (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2770692A (en) * | 1952-12-12 | 1956-11-13 | Bell Telephone Labor Inc | Snap switch |
US3684842A (en) * | 1970-07-01 | 1972-08-15 | Texas Instruments Inc | Pushbutton keyboard switch assembly with improved over center diaphragm contact |
US3707609A (en) * | 1971-10-27 | 1972-12-26 | Texas Instruments Inc | Diaphragm pushbutton switch array for keyboards |
US3737670A (en) * | 1971-07-09 | 1973-06-05 | Magic Dot Inc | Touch sensitive electronic switch |
US3749859A (en) * | 1972-04-19 | 1973-07-31 | Colorado Instr Inc | Keyboard switch assembly with improved hermetically sealed diaphragm contact structure |
US3751612A (en) * | 1971-08-30 | 1973-08-07 | Colorado Instr Inc | Snap action capacitive type switch |
US3767875A (en) * | 1972-06-19 | 1973-10-23 | Texas Instruments Inc | Diaphragm type pushbutton setting switch with fixed contact semiconductor substrate support |
US3806673A (en) * | 1972-11-20 | 1974-04-23 | Texas Instruments Inc | Pushbutton keyboard switch assembly with improved disc spring contact and printed circuit structure |
US3808384A (en) * | 1971-06-01 | 1974-04-30 | Texas Instruments Inc | Pushbutton keyboard system |
US3982089A (en) * | 1974-11-29 | 1976-09-21 | Seiko Instruments Incorporated | Pushbutton switch |
US3995128A (en) * | 1975-01-10 | 1976-11-30 | Texas Instruments Incorporated | Pushbutton keyboard system having preformed recessed support with contacts mounted on face and in recesses |
US3995126A (en) * | 1975-04-03 | 1976-11-30 | Magic Dot, Inc. | Membrane keyboard apparatus |
US3996427A (en) * | 1975-01-10 | 1976-12-07 | Texas Instruments Incorporated | Pushbutton keyboard system and method of making same |
US4046981A (en) * | 1975-12-24 | 1977-09-06 | Texas Instruments Incorporated | Keyboard switch with printed wiring board structure and its method of manufacture |
US4074088A (en) * | 1974-05-21 | 1978-02-14 | Texas Instruments Incorporated | Keyboard apparatus and method of making |
US4314112A (en) * | 1971-08-23 | 1982-02-02 | Hewlett-Packard Company | Keyboard having switches with tactile feedback |
US4331851A (en) * | 1980-06-16 | 1982-05-25 | Texas Instruments Incorporated | Printed circuit board having data input devices mounted thereon and input devices therefor |
US4343973A (en) * | 1980-08-13 | 1982-08-10 | Cherry Electrical Products Corp. | Low cost electrical switch |
US4359614A (en) * | 1981-09-24 | 1982-11-16 | Illinois Tool Works Inc. | Miniature two-level pushbutton switch |
JPS593809B1 (en) * | 1979-10-03 | 1984-01-26 | Canon Kk | |
US4532376A (en) * | 1983-05-26 | 1985-07-30 | Sanders Associates, Inc. | Electronic pen with switching mechanism for selectively providing tactile or non-tactile feel |
USRE32419E (en) * | 1981-03-16 | 1987-05-12 | Engineering Research Applications, Inc. | Molded keyboard and method of fabricating same |
DE3625057A1 (en) * | 1986-07-24 | 1988-01-28 | Dautel Emil Gmbh | Foot switch for the actuation of lifting platforms |
DE3736892A1 (en) * | 1986-10-31 | 1988-05-11 | Idec Izumi Corp | KEY OR PRESSURE SWITCH AND METHOD FOR THE PRODUCTION THEREOF |
DE3711789A1 (en) * | 1987-04-08 | 1988-10-27 | Kostal Leopold Gmbh & Co Kg | Push-button switch |
WO1999054898A1 (en) * | 1998-04-17 | 1999-10-28 | Inovan Gmbh & Co. Kg Metalle Und Bauelemente | Snap-on wafer switch for high currents |
DE19816946C1 (en) * | 1998-04-17 | 2000-03-09 | Inovan Stroebe | Snap disk switch |
US6747218B2 (en) * | 2002-09-20 | 2004-06-08 | Sherwood Services Ag | Electrosurgical haptic switch including snap dome and printed circuit stepped contact array |
EP1763048A1 (en) * | 2004-06-22 | 2007-03-14 | Aisin Seiki Kabushiki Kaisha | Switch device |
US7345670B2 (en) | 1992-03-05 | 2008-03-18 | Anascape | Image controller |
EP2607972A1 (en) * | 2011-12-22 | 2013-06-26 | The Swatch Group Research and Development Ltd. | Watertight push button for watch |
US8674932B2 (en) | 1996-07-05 | 2014-03-18 | Anascape, Ltd. | Image controller |
-
1940
- 1940-09-21 US US357687A patent/US2262777A/en not_active Expired - Lifetime
Cited By (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2770692A (en) * | 1952-12-12 | 1956-11-13 | Bell Telephone Labor Inc | Snap switch |
US3684842A (en) * | 1970-07-01 | 1972-08-15 | Texas Instruments Inc | Pushbutton keyboard switch assembly with improved over center diaphragm contact |
US3808384A (en) * | 1971-06-01 | 1974-04-30 | Texas Instruments Inc | Pushbutton keyboard system |
US3737670A (en) * | 1971-07-09 | 1973-06-05 | Magic Dot Inc | Touch sensitive electronic switch |
US4314112A (en) * | 1971-08-23 | 1982-02-02 | Hewlett-Packard Company | Keyboard having switches with tactile feedback |
US3751612A (en) * | 1971-08-30 | 1973-08-07 | Colorado Instr Inc | Snap action capacitive type switch |
US3707609A (en) * | 1971-10-27 | 1972-12-26 | Texas Instruments Inc | Diaphragm pushbutton switch array for keyboards |
US3749859A (en) * | 1972-04-19 | 1973-07-31 | Colorado Instr Inc | Keyboard switch assembly with improved hermetically sealed diaphragm contact structure |
US3767875A (en) * | 1972-06-19 | 1973-10-23 | Texas Instruments Inc | Diaphragm type pushbutton setting switch with fixed contact semiconductor substrate support |
US3806673A (en) * | 1972-11-20 | 1974-04-23 | Texas Instruments Inc | Pushbutton keyboard switch assembly with improved disc spring contact and printed circuit structure |
US4074088A (en) * | 1974-05-21 | 1978-02-14 | Texas Instruments Incorporated | Keyboard apparatus and method of making |
US3982089A (en) * | 1974-11-29 | 1976-09-21 | Seiko Instruments Incorporated | Pushbutton switch |
US3995128A (en) * | 1975-01-10 | 1976-11-30 | Texas Instruments Incorporated | Pushbutton keyboard system having preformed recessed support with contacts mounted on face and in recesses |
US3996427A (en) * | 1975-01-10 | 1976-12-07 | Texas Instruments Incorporated | Pushbutton keyboard system and method of making same |
US4068369A (en) * | 1975-01-10 | 1978-01-17 | Texas Instruments Incorporated | Method of making pushbutton keyboard system |
US3995126A (en) * | 1975-04-03 | 1976-11-30 | Magic Dot, Inc. | Membrane keyboard apparatus |
US4046981A (en) * | 1975-12-24 | 1977-09-06 | Texas Instruments Incorporated | Keyboard switch with printed wiring board structure and its method of manufacture |
JPS593809B1 (en) * | 1979-10-03 | 1984-01-26 | Canon Kk | |
US4331851A (en) * | 1980-06-16 | 1982-05-25 | Texas Instruments Incorporated | Printed circuit board having data input devices mounted thereon and input devices therefor |
US4343973A (en) * | 1980-08-13 | 1982-08-10 | Cherry Electrical Products Corp. | Low cost electrical switch |
USRE32419E (en) * | 1981-03-16 | 1987-05-12 | Engineering Research Applications, Inc. | Molded keyboard and method of fabricating same |
US4359614A (en) * | 1981-09-24 | 1982-11-16 | Illinois Tool Works Inc. | Miniature two-level pushbutton switch |
US4532376A (en) * | 1983-05-26 | 1985-07-30 | Sanders Associates, Inc. | Electronic pen with switching mechanism for selectively providing tactile or non-tactile feel |
DE3625057C2 (en) * | 1986-07-24 | 1999-07-08 | Dautel Emil Gmbh | Foot switch for operating lifting platforms |
DE3625057A1 (en) * | 1986-07-24 | 1988-01-28 | Dautel Emil Gmbh | Foot switch for the actuation of lifting platforms |
DE3736892A1 (en) * | 1986-10-31 | 1988-05-11 | Idec Izumi Corp | KEY OR PRESSURE SWITCH AND METHOD FOR THE PRODUCTION THEREOF |
US4843197A (en) * | 1986-10-31 | 1989-06-27 | Idec Izumi Corporation | Bush switch and method of production thereof |
DE3711789A1 (en) * | 1987-04-08 | 1988-10-27 | Kostal Leopold Gmbh & Co Kg | Push-button switch |
US7345670B2 (en) | 1992-03-05 | 2008-03-18 | Anascape | Image controller |
US9081426B2 (en) | 1992-03-05 | 2015-07-14 | Anascape, Ltd. | Image controller |
US8674932B2 (en) | 1996-07-05 | 2014-03-18 | Anascape, Ltd. | Image controller |
DE19816947C1 (en) * | 1998-04-17 | 2000-03-16 | Inovan Stroebe | Snap disc switch for large currents |
DE19816946C1 (en) * | 1998-04-17 | 2000-03-09 | Inovan Stroebe | Snap disk switch |
WO1999054898A1 (en) * | 1998-04-17 | 1999-10-28 | Inovan Gmbh & Co. Kg Metalle Und Bauelemente | Snap-on wafer switch for high currents |
US6747218B2 (en) * | 2002-09-20 | 2004-06-08 | Sherwood Services Ag | Electrosurgical haptic switch including snap dome and printed circuit stepped contact array |
EP1763048A1 (en) * | 2004-06-22 | 2007-03-14 | Aisin Seiki Kabushiki Kaisha | Switch device |
EP1763048A4 (en) * | 2004-06-22 | 2007-08-08 | Aisin Seiki | Switch device |
US20080067050A1 (en) * | 2004-06-22 | 2008-03-20 | Aisin Seiki Kabushiki Kaisha | Switch Device |
US7763819B2 (en) | 2004-06-22 | 2010-07-27 | Aisin Seiki Kabushiki Kaisha | Switch device |
EP2607972A1 (en) * | 2011-12-22 | 2013-06-26 | The Swatch Group Research and Development Ltd. | Watertight push button for watch |
US20130163395A1 (en) * | 2011-12-22 | 2013-06-27 | The Swatch Group Research And Development Ltd. | Waterproof watch pushbutton |
JP2013134256A (en) * | 2011-12-22 | 2013-07-08 | Swatch Group Research & Development Ltd | Waterproof push button for watch |
US9123483B2 (en) * | 2011-12-22 | 2015-09-01 | The Swatch Group Research And Development Ltd. | Waterproof watch pushbutton |
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