FR953256A - Improvements made to circuit breakers - Google Patents

Improvements made to circuit breakers

Info

Publication number
FR953256A
FR953256A FR953256DA FR953256A FR 953256 A FR953256 A FR 953256A FR 953256D A FR953256D A FR 953256DA FR 953256 A FR953256 A FR 953256A
Authority
FR
France
Prior art keywords
circuit breakers
improvements made
breakers
circuit
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
Other languages
French (fr)
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.)
John B Pierce Foundation
Original Assignee
John B Pierce Foundation
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 John B Pierce Foundation filed Critical John B Pierce Foundation
Application granted granted Critical
Publication of FR953256A publication Critical patent/FR953256A/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
FR953256D 1947-03-04 1947-09-19 Improvements made to circuit breakers Expired FR953256A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US732308A US2468774A (en) 1947-03-04 1947-03-04 Electrical circuit breaker

Publications (1)

Publication Number Publication Date
FR953256A true FR953256A (en) 1949-12-02

Family

ID=24943024

Family Applications (1)

Application Number Title Priority Date Filing Date
FR953256D Expired FR953256A (en) 1947-03-04 1947-09-19 Improvements made to circuit breakers

Country Status (2)

Country Link
US (1) US2468774A (en)
FR (1) FR953256A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2838635A (en) * 1956-07-16 1958-06-10 Mechanical Products Inc Electric switch having automatic current overload protection
US3009999A (en) * 1958-06-24 1961-11-21 Arrow Hart & Hegeman Electric Tool handle switch with overload protection

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1766965A (en) * 1927-04-08 1930-06-24 Adolph A Thomas Thermostat
US2150635A (en) * 1936-07-22 1939-03-14 Emerson Electric Mfg Co Motor protector switch
US2325650A (en) * 1941-12-02 1943-08-03 Westinghouse Electric & Mfg Co Circuit breaker

Also Published As

Publication number Publication date
US2468774A (en) 1949-05-03

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