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GB1237634A - Thermostatic devices - Google Patents

Thermostatic devices

Info

Publication number
GB1237634A
GB1237634A GB04642/69A GB1464269A GB1237634A GB 1237634 A GB1237634 A GB 1237634A GB 04642/69 A GB04642/69 A GB 04642/69A GB 1464269 A GB1464269 A GB 1464269A GB 1237634 A GB1237634 A GB 1237634A
Authority
GB
United Kingdom
Prior art keywords
metal cover
blade
contact
thermostatic devices
thermal
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
GB04642/69A
Inventor
Antonio Nardulli
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
Application filed by Texas Instruments Inc filed Critical Texas Instruments Inc
Publication of GB1237634A publication Critical patent/GB1237634A/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
    • H01H37/5418—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting using cantilevered bimetallic snap elements
    • 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
    • H01H37/5427—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting encapsulated in sealed miniaturised housing
    • 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
    • H01H2037/5445—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting with measures for avoiding slow break of contacts during the creep phase of the snap bimetal
    • 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

Landscapes

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

Abstract

1,237,634. Thermal switches. TEXAS INSTRUMENTS Inc. 20 March, 1969 [3 April, 1968], No. 14642/69. Heading H1N. A thermal switch for protecting an electric motor comprises an adjustable fixed contact 4 mounted within a recess of an insulating housing 1 and engaged by a contact 10 on a snapaction bimetal blade 9 attached to a metal cover 6. The blade 9 may be longitudinally creased at 11 to provide snap-action and may engage a back stop 8 comprising a projection formed on the metal cover 6.
GB04642/69A 1968-04-03 1969-03-20 Thermostatic devices Expired GB1237634A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT3603268 1968-04-03

Publications (1)

Publication Number Publication Date
GB1237634A true GB1237634A (en) 1971-06-30

Family

ID=33017927

Family Applications (1)

Application Number Title Priority Date Filing Date
GB04642/69A Expired GB1237634A (en) 1968-04-03 1969-03-20 Thermostatic devices

Country Status (5)

Country Link
US (1) US3577111A (en)
DE (1) DE1915721B2 (en)
FR (1) FR2005424A1 (en)
GB (1) GB1237634A (en)
NL (1) NL161610C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2481240A (en) * 2010-06-17 2011-12-21 Otter Controls Ltd Thermally responsive electric switch

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3818404A (en) * 1972-10-30 1974-06-18 Texas Instruments Inc Circuit breaker apparatus
US3936792A (en) * 1972-10-30 1976-02-03 Texas Instruments Incorporated Circuit breaker apparatus
US3996547A (en) * 1974-09-05 1976-12-07 Texas Instruments Incorporated Motor protector apparatus
US4039992A (en) * 1976-02-19 1977-08-02 Portage Electric Products, Inc. Non-creep thermostat construction
GB1580786A (en) * 1976-04-08 1980-12-03 Otter Controls Ltd Thermostats
US4220939A (en) * 1979-02-12 1980-09-02 Emerson Electric Co. Thermal responsive electrical switching device and calibration method therefor
US4317098A (en) * 1980-01-28 1982-02-23 Elmwood Sensors, Inc. Grounded thermostat switch
US4367452A (en) * 1982-02-11 1983-01-04 Elmwood Sensors, Inc. Thermostatic switch construction
US4445105A (en) * 1982-06-28 1984-04-24 Portage Electric Products, Inc. Thermostat
JPS5980945U (en) * 1982-11-24 1984-05-31 生方　進 thermal response relay
US4567458A (en) * 1984-08-15 1986-01-28 Index Industries, Inc. Thermostatic switch
US5014034A (en) * 1989-12-04 1991-05-07 Portage Electric Products, Inc. Thermostatic switch with insulated calibration dimple
US6559752B1 (en) * 1999-05-24 2003-05-06 Frank J. Sienkiewicz Creepless snap acting bimetallic switch having flexible contact members

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA694717A (en) * 1964-09-22 Texas Instruments Incorporated Thermostatic switch
US2222291A (en) * 1938-10-19 1940-11-19 Freeman Maurice Electric circuit breaker
US3054871A (en) * 1958-12-16 1962-09-18 Ford Motor Co Pressure actuated switch
US3021405A (en) * 1959-02-26 1962-02-13 Texas Instruments Inc Thermostatic switch
US3139500A (en) * 1960-03-02 1964-06-30 Wilcolator Co Thermally actuated double throw switch mechanism
US3416116A (en) * 1960-12-19 1968-12-10 Texas Instruments Inc Thermostatic switches
NL277796A (en) * 1961-05-01
US3361883A (en) * 1966-11-01 1968-01-02 Theodore Brassard Jr. Calibrated thermostatic switch and method for calibrating the same including welded lug and recess means
US3430177A (en) * 1966-12-30 1969-02-25 Texas Instruments Inc Miniature thermostatic switch
US3431527A (en) * 1966-12-30 1969-03-04 Texas Instruments Inc Thermostatic snap-acting switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2481240A (en) * 2010-06-17 2011-12-21 Otter Controls Ltd Thermally responsive electric switch
GB2481240B (en) * 2010-06-17 2017-04-12 Otter Controls Ltd Thermally responsive electric switches

Also Published As

Publication number Publication date
US3577111A (en) 1971-05-04
DE1915721B2 (en) 1972-02-17
NL6904899A (en) 1969-10-07
FR2005424A1 (en) 1969-12-12
NL161610C (en) 1980-02-15
DE1915721A1 (en) 1969-10-16
NL161610B (en) 1979-09-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]