Patent US3287523A successfully refreshed from Google Patents.
US3287523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Push button type circuit breaker with cross-slide
Assignee: AMSTAR TECHNICAL PRODUCTS COMPANY Inc A CORP OF DE
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Filing: 1965-11-30
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Granted: 1966-11-22
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Expires: 1985-11-30
Abstract
No abstract record available.
Inventors
- 👤 Macdonald John
- 👤 Jr Thomas W Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:22
CPC Classifications
H; H01; H01H; H01H73/00; H01H73/22; H01H73/30; H01H71/00; H01H71/10; H01H71/12; H01H71/14; H01H71/16; H01H71/162
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
212 words
AN ELECTRICAL CIRCUIT BREAKER COMPRISING AN INSULATING HOUSING, A PAIR OF TERMINALS EXTENDING EXTERIORLY OF SAID HOUSING, A FIXED CONTACT CONNECTED TO ONE OF SAID TERMINALS, AN ELONGATED CURRENT RESPONSIVE BIMETALLIC ELEMENT IN SAID HOUSING HAVING ITS END SUPPORTED THEREBY, ONE END OF SAID CURRENT RESPONSIVE BIMETAL BEING ELECTRICALLY CONNECTED TO THE OTHER OF SAID TERMINALS, A LATCH SUPPORTED BY SAID HOUSING, A PLUNGER HAVING A MOVABLE ELECTRICAL CONTACT THEREON ENGAGEABLE WITH SAID FIXED CONTACT AND ELECTRICALLY CONNECTED TO THE OTHER END OF SAID CURRENT RESPONSIVE BIMETAL TO COMPLETE AN ELECTRICAL CIRCUIT THROUGH SAID CIRCUIT BREAKER, A SLIDE CARRIED BY SAID PLUNGER AND EXTENDING GENERALLY NORMALLY TO SAID CURRENT RESPONSIVE ELEMENT, SAID SLIDE HAVING ONE END ENGAGED WITH AN INTERMEDIATE PORTION OF SAID CURRENT RESPONSIVE BIMETAL AND THE OTHER END ENGAGED WITH SAID LATCH, MEANS SUPPORTING SAID SLIDE FOR MOVEMENT UPON DEFLECTION OF SAID CURRENT RESPONSIVE BIMETAL THEREBY TO AFFECT EFFECTING DISENGAGEMENT OF SAID SLIDE FROM SAID LATCH PERMITTING SAID PLUNGER TO MOVE TO THE CONTACTS OPEN CONDITION, AND A MANUAL OPERATOR ENGAGEABLE WITH SAID PLUNGER TO BIAS SAID PLUNGER AND MOVABLE CONTACT TO THE CONTACTS CLOSED CONDITION, SAID MANUAL OPERATOR HAVING MEANS ENGAGEABLE WITH SAID SLIDE TO EFFECT MOVEMENT THEREOF RELATIVE TO SAID LATCH TO EFFECT MANUAL OPENING OF SAID CONTACTS.
Claim 2
Dependent Claim
212 words
AN ELECTRICAL CIRCUIT BREAKER COMPRISING AN INSULATING HOUSING, A PAIR OF TERMINALS EXTENDING EXTERIORLY OF SAID HOUSING, A FIXED CONTACT CONNECTED TO ONE OF SAID TERMINALS, AN ELONGATED CURRENT RESPONSIVE BIMETALLIC ELEMENT IN SAID HOUSING HAVING ITS END SUPPORTED THEREBY, ONE END OF SAID CURRENT RESPONSIVE BIMETAL BEING ELECTRICALLY CONNECTED TO THE OTHER OF SAID TERMINALS, A LATCH SUPPORTED BY SAID HOUSING, A PLUNGER HAVING A MOVABLE ELECTRICAL CONTACT THEREON ENGAGEABLE WITH SAID FIXED CONTACT AND ELECTRICALLY CONNECTED TO THE OTHER END OF SAID CURRENT RESPONSIVE BIMETAL TO COMPLETE AN ELECTRICAL CIRCUIT THROUGH SAID CIRCUIT BREAKER, A SLIDE CARRIED BY SAID PLUNGER AND EXTENDING GENERALLY NORMALLY TO SAID CURRENT RESPONSIVE ELEMENT, SAID SLIDE HAVING ONE END ENGAGED WITH AN INTERMEDIATE PORTION OF SAID CURRENT RESPONSIVE BIMETAL AND THE OTHER END ENGAGED WITH SAID LATCH, MEANS SUPPORTING SAID SLIDE FOR MOVEMENT UPON DEFLECTION OF SAID CURRENT RESPONSIVE BIMETAL THEREBY TO AFFECT EFFECTING DISENGAGEMENT OF SAID SLIDE FROM SAID LATCH PERMITTING SAID PLUNGER TO MOVE TO THE CONTACTS OPEN CONDITION, AND A MANUAL OPERATOR ENGAGEABLE WITH SAID PLUNGER TO BIAS SAID PLUNGER AND MOVABLE CONTACT TO THE CONTACTS CLOSED CONDITION, SAID MANUAL OPERATOR HAVING MEANS ENGAGEABLE WITH SAID SLIDE TO EFFECT MOVEMENT THEREOF RELATIVE TO SAID LATCH TO EFFECT MANUAL OPENING OF SAID CONTACTS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |