GB851941A - Thermally responsive switch structures - Google Patents

Thermally responsive switch structures

Info

Publication number
GB851941A
GB851941A GB237/58A GB23758A GB851941A GB 851941 A GB851941 A GB 851941A GB 237/58 A GB237/58 A GB 237/58A GB 23758 A GB23758 A GB 23758A GB 851941 A GB851941 A GB 851941A
Authority
GB
United Kingdom
Prior art keywords
extensions
disc
thermally responsive
responsive switch
switch structures
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
Application number
GB237/58A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Metals and Controls Corp
Original Assignee
Metals and Controls Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Metals and Controls Corp filed Critical Metals and Controls Corp
Publication of GB851941A publication Critical patent/GB851941A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/22—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release
    • H01H73/30—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release reset by push-button, pull-knob or slide
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
    • H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
    • H01H2037/5463—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting the bimetallic snap element forming part of switched circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
    • H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting

Landscapes

  • Thermally Actuated Switches (AREA)

Abstract

851,941. Thermal switches. METALS & CONTROLS CORPORATION. Jan. 2, 1958 [March 28, 1957], No. 237/58. Class 38 (5). In a switch similar to that of Specification 521,236, the resetting plate 70 bears at its ends on extensions 50, 52 of the bi-metallic disc 34 which extensions are arranged at right-angles to the line joining the contacts 42, 44 which may be mounted on bars 46, 48 as in Specification 851,721. The extensions may move in base recesses 66, 68 so as to prevent rotation of the disc 34, or may have notches, one of which engages a rib on the base (Fig. 10, not shown). The disc 34 may be heated by the current through it, or by an auxiliary heater (Figs. 10- 13, not shown). Specification 178,103 also is referred to.
GB237/58A 1957-03-28 1958-01-02 Thermally responsive switch structures Expired GB851941A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US649206A US2839638A (en) 1957-03-28 1957-03-28 Thermally responsive switch structures

Publications (1)

Publication Number Publication Date
GB851941A true GB851941A (en) 1960-10-19

Family

ID=24603848

Family Applications (1)

Application Number Title Priority Date Filing Date
GB237/58A Expired GB851941A (en) 1957-03-28 1958-01-02 Thermally responsive switch structures

Country Status (2)

Country Link
US (1) US2839638A (en)
GB (1) GB851941A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3042776A (en) * 1959-09-16 1962-07-03 Texas Instruments Inc Electrical switches
US3197594A (en) * 1962-12-28 1965-07-27 Therm O Disc Inc Thermo-sensitive switch plug
US3236971A (en) * 1963-02-28 1966-02-22 Zenith Radio Corp Combination on-off switch and circuit-breaker
US3470514A (en) * 1966-08-09 1969-09-30 Texas Instruments Inc Electrical switch particularly adapted for use in pressurized areas
US5671841A (en) * 1995-08-14 1997-09-30 Calculagraph Co. Method and apparatus for switching mechanism
US5685481A (en) * 1996-01-11 1997-11-11 Apcom, Inc. Trip-free high limit control
DE19610185C1 (en) * 1996-03-15 1997-04-10 Lectra Trading Ag Thermal overload switch for electrical apparatus
TW572345U (en) * 2003-06-23 2004-01-11 Emi Stop Corp Elastic sheet of ingle-piece circuit switch
EP3772080A3 (en) * 2019-07-30 2021-06-02 MP Hollywood Switches with integral overcurrent protection components

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434984A (en) * 1943-06-17 1948-01-27 Metals & Controls Corp Thermostatic control
NL166233B (en) * 1950-12-22 Schemm Fa Theodor LEVER CLOSURE FOR A STRAP.

Also Published As

Publication number Publication date
US2839638A (en) 1958-06-17

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