FR1078344A - Electric motor switch - Google Patents

Electric motor switch

Info

Publication number: FR1078344A
Authority: FR; France
Prior art keywords: electric motor; motor switch; switch; electric; motor
Prior art date: 1951-09-18
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

Other languages

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.)

Motors Liquidation Co

Original Assignee

General Motors 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.)

1951-09-18

Filing date

1952-09-12

Publication date

1954-11-17

1952-09-12 Application filed by General Motors Corp filed Critical General Motors Corp

1954-11-17 Application granted granted Critical

1954-11-17 Publication of FR1078344A publication Critical patent/FR1078344A/en

Status Expired legal-status Critical Current

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
- H01H73/48—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 both electrothermal and electromagnetic automatic release
- H01H73/56—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 both electrothermal and electromagnetic automatic release reset by push-button, pull-knob or slide

Landscapes

Physics & Mathematics (AREA)
Electromagnetism (AREA)
Motor And Converter Starters (AREA)
Thermally Actuated Switches (AREA)

FR1078344D 1951-09-18 1952-09-12 Electric motor switch Expired FR1078344A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US247184A US2690485A (en)	1951-09-18	1951-09-18	Motor control switch

Publications (1)

Publication Number	Publication Date
FR1078344A true FR1078344A (en)	1954-11-17

Family

ID=22933923

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR1078344D Expired FR1078344A (en)	1951-09-18	1952-09-12	Electric motor switch

Country Status (3)

Country	Link
US (1)	US2690485A (en)
FR (1)	FR1078344A (en)
GB (1)	GB709876A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3206574A (en) *	1962-10-30	1965-09-14	Gen Motors Corp	Starting and overload control
US3767934A (en) *	1971-06-16	1973-10-23	Exxon Co	Fault responsive switching system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US963762A (en) *	1907-05-06	1910-07-12	Westinghouse Electric & Mfg Co	Protective device for electric apparatus.
US1437617A (en) *	1920-04-30	1922-12-05	Cutler Hammer Mfg Co	Circuit interrupter
US2160424A (en) *	1937-11-02	1939-05-30	Chase Shawmut Co	Electric switch and tripping mechanism therefor
US2325717A (en) *	1940-12-04	1943-08-03	Westinghouse Electric & Mfg Co	Circuit breaker
US2323784A (en) *	1941-02-26	1943-07-06	Westinghouse Electric & Mfg Co	Circuit breaker

1951
- 1951-09-18 US US247184A patent/US2690485A/en not_active Expired - Lifetime
1952
- 1952-08-15 GB GB20526/52A patent/GB709876A/en not_active Expired
- 1952-09-12 FR FR1078344D patent/FR1078344A/en not_active Expired

Also Published As

Publication number	Publication date
US2690485A (en)	1954-09-28
GB709876A (en)	1954-06-02

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