US3671890B1 - - Google Patents

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Publication number
US3671890B1
US3671890B1 US12991571A US3671890B1 US 3671890 B1 US3671890 B1 US 3671890B1 US 12991571 A US12991571 A US 12991571A US 3671890 B1 US3671890 B1 US 3671890B1
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US
United States
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
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 filed Critical
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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    • 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
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 US3671890A (en) 1972-06-20
US3671890B1 true US3671890B1 (en) 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)

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US (1) US3671890A (en)
CA (1) CA929570A (en)

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
WO2008128672A2 (en) * 2007-04-19 2008-10-30 Abb Ag Locking device for an installation switch device

Family Cites Families (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 (6)

* 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
WO2008128672A2 (en) * 2007-04-19 2008-10-30 Abb Ag Locking device for an installation switch device
WO2008128672A3 (en) * 2007-04-19 2009-05-14 Abb Ag Locking device for an installation switch device

Also Published As

Publication number Publication date
CA929570A (en) 1973-07-03
US3671890A (en) 1972-06-20

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Legal Events

Date Code Title Description
RR Request for reexamination filed

Effective date: 19840319

B1 Reexamination certificate first reexamination