GB956775A - Thermally actuated electric switch - Google Patents

Thermally actuated electric switch

Info

Publication number
GB956775A
GB956775A GB1761060A GB1761060A GB956775A GB 956775 A GB956775 A GB 956775A GB 1761060 A GB1761060 A GB 1761060A GB 1761060 A GB1761060 A GB 1761060A GB 956775 A GB956775 A GB 956775A
Authority
GB
United Kingdom
Prior art keywords
plate
button
snap
predetermined temperature
fixed contact
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
GB1761060A
Inventor
Henry David Epstein
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.)
Texas Instruments Inc
Original Assignee
Texas Instruments Inc
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
Priority to US782895A priority Critical patent/US2951137A/en
Application filed by Texas Instruments Inc filed Critical Texas Instruments Inc
Priority to GB1761060A priority patent/GB956775A/en
Publication of GB956775A publication Critical patent/GB956775A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01H37/5409—Bistable switches; Resetting means
    • 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
    • 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
    • H01H37/64—Contacts
    • H01H37/70—Resetting means
    • H01H2037/705—Resetting means wherein the switch cannot be closed when the temperature is above a certain value

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

956,775. Thermal switches. TEXAS INSTRUMENTS Inc. May 18, 1960, No. 17610/60. Heading H2B. In a manually reset thermal cut-out comprising a snap-acting bi-metallic plate 23 clamped to a vertically adjustable terminal support 13 the plate 23 has a semi-circular slot 33. Two ears 25, 27 extend from the plate, 25 carrying a contact 29 which cooperates with a fixed contact 11, and 27 having an aperture 31 co-operating with a screw 55 carried by a push-pull resetting button 45. At a predetermined temperature the plate snaps to the dotted line position (Fig. 2), whereupon an indicating band 51 on button 45 is exposed. The characteristics of plate 23 are so chosen that it can be reset only when it has cooled to a predetermined temperature. When the button 45 is depressed the plate is deformed in a generally anticlockwise sense and the ear 25 of the plate bears against an adjustable stop 41 so causing the plate to be stressed and snap into engagement with fixed contact 11. The cut-out can be opened manually by pulling the button 45.
GB1761060A 1958-12-24 1960-05-18 Thermally actuated electric switch Expired GB956775A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US782895A US2951137A (en) 1958-12-24 1958-12-24 Thermostatic switch
GB1761060A GB956775A (en) 1960-05-18 1960-05-18 Thermally actuated electric switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1761060A GB956775A (en) 1960-05-18 1960-05-18 Thermally actuated electric switch

Publications (1)

Publication Number Publication Date
GB956775A true GB956775A (en) 1964-04-29

Family

ID=10098155

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1761060A Expired GB956775A (en) 1958-12-24 1960-05-18 Thermally actuated electric switch

Country Status (1)

Country Link
GB (1) GB956775A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0201002A2 (en) * 1985-05-04 1986-11-12 INTER CONTROL Hermann Köhler Elektrik GmbH u. Co. KG Thermally controlled electrical switch element, in particular a thermostat or temperature limiter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0201002A2 (en) * 1985-05-04 1986-11-12 INTER CONTROL Hermann Köhler Elektrik GmbH u. Co. KG Thermally controlled electrical switch element, in particular a thermostat or temperature limiter
EP0201002A3 (en) * 1985-05-04 1989-06-14 Inter Control Hermann Kohler Elektrik Gmbh U. Co. Kg Thermally controlled electrical switch element, in particular a thermostat or temperature limiter

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