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
- Authority
- 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
Links
Images
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
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 (zh) | 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 (zh) |
CA (1) | CA929570A (zh) |
Cited By (5)
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 (de) * | 2007-04-19 | 2008-10-30 | Abb Ag | Verriegelungsvorrichtung für ein installationsschaltgerät |
Family Cites Families (3)
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 |
-
1971
- 1971-03-31 US US129915A patent/US3671890A/en not_active Expired - Lifetime
-
1972
- 1972-03-21 CA CA137599A patent/CA929570A/en not_active Expired
Cited By (6)
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 (de) * | 2007-04-19 | 2008-10-30 | Abb Ag | Verriegelungsvorrichtung für ein installationsschaltgerät |
WO2008128672A3 (de) * | 2007-04-19 | 2009-05-14 | Abb Ag | Verriegelungsvorrichtung für ein installationsschaltgerät |
Also Published As
Publication number | Publication date |
---|---|
CA929570A (en) | 1973-07-03 |
US3671890A (en) | 1972-06-20 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RR | Request for reexamination filed |
Effective date: 19840319 |
|
B1 | Reexamination certificate first reexamination |