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Publication numberUS1891015 A
Publication typeGrant
Publication dateDec 13, 1932
Filing dateMay 20, 1931
Priority dateMay 20, 1931
Publication numberUS 1891015 A, US 1891015A, US-A-1891015, US1891015 A, US1891015A
InventorsRich Claude R
Original AssigneeTeesdale Mfg Company
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Switch
US 1891015 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

c. R; RQICH Dec. 13, 1932.

SWITCH Filed May 29, '1931 INVENTOR. Claude 7? 71 /01 ATTORNEYS.

Patented Dec. 13,1932

UNITED STATES PATENT OFFICE CLAUDE R. RICH, OF GRAND RAPIDS, MICHIGAN, ASSIGNOB TO TEESIJALE MANUFAC- TUBING- COMPANY, OF GRAND RAPIDS, MICHIGAN, A CORPORATION OF MICHIGAN SWITCH Application filed May 20,

The present invention relates to switches and more particularly to thermally controlled electric switches.

The main objects of the invention are to provide a quick acting or snap switch of the character above indicated; to provide a snap switch automatically operable by an electrical overload; and, to provide means manually operable for closing the circuit after it is broken.

An illustrative embodiment of the invention is shown in the accompanying drawing, wherein:

Figure 1 is a' side elevational view of the snap switch; 7

Figure 2 is a top plan view thereoit' showing the switch with its circuit making and breaking points in closed position;

Figure 3 is'a similar view showing the contact points in open position;

Figure 4 is a plan view of the switch showing means whereby the points are further separated when the switch is manually prematurely operated; and

Figure 5 is an end elevational view of the snap switch.

Referring to the drawing in which like parts are designated by the same numerals in the several views, a switch base plate 1, preferably of suitable non-electrical conducting material, has a pair of terminal connections 2, 3 of conventional type for the electric lead wires 4, 5.

A pair of circuit making and breaking members 6, 7 here shown as elongated and preferably flexible, each has a circuit male ing and breaking contact point 8, 9 respectively suitably secured as by rivets 10, the.

member 6 being preferably provided with a curved or cammed end 11. The member 7 is 'thermally responsively flexible and preferably formed from ordinary superimposed bimetallic sheet metal.

A manually operable member 12 here shown as a lever pivotally secured to the base has a cammed head 13 adapted to contact the curved or cammed end 11 of the member 6 when manually operated as shown in Figure 4:. A coil spring 14 secured to the lever and to the pivot screw 15 causes the lever to 1931. Serial No. 538,637.

break the circuit as indicatedin Figure 3.

IVhen the member 7 sufficiently cools, the lever may be manually shifted to permit the points to again contact each other to again close the circuit.- If, however, it is attempted to manually close the circuit before the member 7 is sufliciently cooled, movement of the lever to the position shown in Figure 4, causes the points to be further separated.

It will thus be seen that'a thermally controlled snap switch is herein shown and described which is quickly operated by an electrical overload for breaking the circuit and that manually operable means for again closing the circuit causes the circuit making points to be further separated when it is attempted to prematurely close the circuit.

While but one specific embodiment of this invention has been herein shown and described, it will be understood that numerous details of the construction shown may be altered or omitted Without departing from the spirit of this invention as defined by the following claims.

I claim:

1. In an electric switch, a pair of circuit makingand breaking members, one of said members being thermally responsively flexible for breaking the circuit, and a manually operable member for closing the circuit, said manually operable member when operated prematurely being so arranged that the circuit making and breaking contact points are further separated by a movement of said member beyond its normal movement for closing the circuit.

2. In an electric switch, a pair of flexible circuit making and breaking members, one of said members being thermally responsively flexible, and a manually operable member for closing the circuit, said manually operable member having a portion adapted to contact one of said circuit making and breaking members to further separate the contact points when said manually operable member is prematurely operated by a movement of said member beyond its normal movement for closing the circuit.

3. In an electric switch, a pair of circuit making and breaking members, one of said members being thermally responsively flexible for breaking the circuit, and a spring operated member for retaining the contact points in open position and manually operable to close the circuit, said manually operable member having a portion adapted to contact one of said circuit making and breaking members to further separate the contact points when said manually operable member is prematurely operated by a movement of said member beyond its normal movement for closing the circuit.

In testimony whereof I have hereunto set my hand at Grand Rapids, Michigan, this 15th day of May, 1931.

- CLAUDE R. RICH.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2427437 *Feb 10, 1944Sep 16, 1947Square D CoElectric relay
US2435114 *Sep 1, 1944Jan 27, 1948Frank Adam Electric CoCircuit breaker
US2567361 *Nov 7, 1949Sep 11, 1951Fasco IndustriesManually operable thermostatic switch assembly
US2757258 *Feb 21, 1952Jul 31, 1956Gen Motors CorpAutomatic circuit breaker
US2814691 *Mar 1, 1952Nov 26, 1957Brandt & FilsDevice for locking movable parts, notably relay armatures
US7265652 *Jul 28, 2004Sep 4, 2007Yingco Electronic Inc.Controllable electronic switch
US7324876Dec 14, 2004Jan 29, 2008Yingco Electronic Inc.System for remotely controlling energy distribution at local sites
US7688175Mar 30, 2010I/O Controls CorporationControllable electronic switch
US7693610Sep 6, 2005Apr 6, 2010Yingco Electronic Inc.Remotely controllable wireless energy control unit
US7925388Apr 12, 2011Yingco Electronics, Inc.Remotely controllable wireless energy control unit
US7961073Sep 29, 2009Jun 14, 2011Yingco Electronic Inc.Controllable electronic switch
US8981891 *May 6, 2011Mar 17, 2015I/O Controls CorporationControllable electronic switch
US20050128043 *Jul 28, 2004Jun 16, 2005Jeffrey YingControllable electronic switch
US20050207081 *Dec 14, 2004Sep 22, 2005Jeffrey YingSystem for remotely controlling energy distribution at local sites
US20060064205 *Sep 6, 2005Mar 23, 2006Jeffrey YingRemotely controllable wireless energy control unit
US20080186126 *Aug 31, 2007Aug 7, 2008Yingco Electronic Inc.Controllable Electronic Switch
US20100277268 *Jan 6, 2009Nov 4, 2010Peter IremanThermal safety device
US20120092122 *Apr 19, 2012Yingco Electronic Inc.Controllable electronic switch
US20150255238 *Mar 17, 2015Sep 10, 2015I/O Controls CorporationControllable electronic switch
DE1114912B *Jun 29, 1959Oct 12, 1961Licentia GmbhThermischer Kleinselbstschalter
Classifications
U.S. Classification337/37, 337/85
International ClassificationH01H73/24, H01H3/02, H01H73/00
Cooperative ClassificationH01H3/0253, H01H73/24
European ClassificationH01H73/24