Patent US3273089A successfully refreshed from Google Patents.
US3273089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit breaker linkage auxiliary tripping arrangement
Assignee: Heinemann Electric Co
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Filing: 1963-04-29
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Granted: 1966-09-13
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Expires: 1983-04-29
Abstract
No abstract record available.
Inventors
- 👤 Henry P Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:43
CPC Classifications
H; H01; H01H; H01H83/00; H01H83/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
IN COMBINATION, A CIRCUIT BREAKER COMPRISING A CASE, AN AUTOMATICALLY RESETTABLE LINKAGE FOR CONTROLLING A PAIR OF SEPARABLE CONTACTS ENCLOSED BY SAID CASE, SAID CIRCUIT BREAKER FURTHER COMPRISING AN ELECTROMAGNETIC MEANS FOR CONTROLLING SAID LINAKGE, SAID LINKAGE INCLUDING A LATCH RELEASEABLE BY SAID ELECTROMAGNETIC MEANS, A SPRING FOR AUTOMATICALLY RESETTING SAID LINKAGE, A TRIP ROD CARRIED BY SAID CASE, A SECOND SPRING BIASING SAID TRIP ROD OUT OF ENGAGEMENT WITH SAID LATCH, AND SAID TRIP ROD BEING MOVABLE INTO ENGAGEMENT WITH SAID LATCH AGAINST THE BIAS OF SAID SECOND SPRING FOR MOVING SAID LATCH TO A POSITION ALLOWING SAID LINKAGE TO COLLAPSE AND SAID CONTACTS TO OPEN.
Claim 2
Dependent Claim
107 words
IN COMBINATION, A CIRCUIT BREAKER COMPRISING A CASE, AN AUTOMATICALLY RESETTABLE LINKAGE FOR CONTROLLING A PAIR OF SEPARABLE CONTACTS ENCLOSED BY SAID CASE, SAID CIRCUIT BREAKER FURTHER COMPRISING AN ELECTROMAGNETIC MEANS FOR CONTROLLING SAID LINAKGE, SAID LINKAGE INCLUDING A LATCH RELEASEABLE BY SAID ELECTROMAGNETIC MEANS, A SPRING FOR AUTOMATICALLY RESETTING SAID LINKAGE, A TRIP ROD CARRIED BY SAID CASE, A SECOND SPRING BIASING SAID TRIP ROD OUT OF ENGAGEMENT WITH SAID LATCH, AND SAID TRIP ROD BEING MOVABLE INTO ENGAGEMENT WITH SAID LATCH AGAINST THE BIAS OF SAID SECOND SPRING FOR MOVING SAID LATCH TO A POSITION ALLOWING SAID LINKAGE TO COLLAPSE AND SAID CONTACTS TO OPEN.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |