US3671890A - Manually operable molded case circuit breaker with special trip testing means - Google Patents

Manually operable molded case circuit breaker with special trip testing means Download PDF

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Publication number
US3671890A
US3671890A US129915A US12991571A US3671890A US 3671890 A US3671890 A US 3671890A US 129915 A US129915 A US 129915A US 12991571 A US12991571 A US 12991571A US 3671890 A US3671890 A US 3671890A
Authority
US
United States
Prior art keywords
button
circuit breaker
trip
casing
inner portion
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 - Lifetime
Application number
US129915A
Other languages
English (en)
Inventor
Keith W Klein
Herbert M Dimond
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to US129915A priority Critical patent/US3671890A/en
Priority to CA137599A priority patent/CA929570A/en
Publication of US3671890A publication Critical patent/US3671890A/en
Application granted granted Critical
Publication of US3671890B1 publication Critical patent/US3671890B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/128—Manual release or trip mechanisms, e.g. for test purposes

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  • Breakers (AREA)
US129915A 1971-03-31 1971-03-31 Manually operable molded case circuit breaker with special trip testing means Expired - Lifetime US3671890A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US129915A US3671890A (en) 1971-03-31 1971-03-31 Manually operable molded case circuit breaker with special trip testing means
CA137599A CA929570A (en) 1971-03-31 1972-03-21 Manually operable molded case circuit breaker with special trip testing means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US129915A US3671890A (en) 1971-03-31 1971-03-31 Manually operable molded case circuit breaker with special trip testing means

Publications (2)

Publication Number Publication Date
US3671890A true US3671890A (en) 1972-06-20
US3671890B1 US3671890B1 (de) 1984-11-06

Family

ID=22442189

Family Applications (1)

Application Number Title Priority Date Filing Date
US129915A Expired - Lifetime US3671890A (en) 1971-03-31 1971-03-31 Manually operable molded case circuit breaker with special trip testing means

Country Status (2)

Country Link
US (1) US3671890A (de)
CA (1) CA929570A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4740768A (en) * 1987-06-29 1988-04-26 General Electric Company Manual trip operator for molded case circuit breaker
US4982173A (en) * 1990-03-01 1991-01-01 General Electric Company Rotatable trip test assembly for molded case circuit breakers
US5075658A (en) * 1990-07-16 1991-12-24 General Electric Company Molded case circuit breaker trip-to-test button and auxiliary switch interface
US5317295A (en) * 1993-03-08 1994-05-31 General Electric Company Molded case circuit breaker trip-to-test button
WO2008128672A3 (de) * 2007-04-19 2009-05-14 Abb Ag Verriegelungsvorrichtung für ein installationsschaltgerät

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1891015A (en) * 1931-05-20 1932-12-13 Teesdale Mfg Company Switch
US3103565A (en) * 1960-09-20 1963-09-10 walker etal
US3480890A (en) * 1968-03-26 1969-11-25 Square D Co Molded-case circuit breaker with manual tripping means externally accessible only by a tool

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1891015A (en) * 1931-05-20 1932-12-13 Teesdale Mfg Company Switch
US3103565A (en) * 1960-09-20 1963-09-10 walker etal
US3480890A (en) * 1968-03-26 1969-11-25 Square D Co Molded-case circuit breaker with manual tripping means externally accessible only by a tool

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4740768A (en) * 1987-06-29 1988-04-26 General Electric Company Manual trip operator for molded case circuit breaker
US4982173A (en) * 1990-03-01 1991-01-01 General Electric Company Rotatable trip test assembly for molded case circuit breakers
US5075658A (en) * 1990-07-16 1991-12-24 General Electric Company Molded case circuit breaker trip-to-test button and auxiliary switch interface
US5317295A (en) * 1993-03-08 1994-05-31 General Electric Company Molded case circuit breaker trip-to-test button
WO2008128672A3 (de) * 2007-04-19 2009-05-14 Abb Ag Verriegelungsvorrichtung für ein installationsschaltgerät

Also Published As

Publication number Publication date
US3671890B1 (de) 1984-11-06
CA929570A (en) 1973-07-03

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Legal Events

Date Code Title Description
RR Request for reexamination filed

Effective date: 19840319

B1 Reexamination certificate first reexamination