Patent US3259725A successfully refreshed from Google Patents.
US3259725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric circuit breaker having a modular arrangement of interrupting assemblies
Assignee: Allis Chalmers Corp
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Filing: 1963-10-16
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Granted: 1966-07-05
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Expires: 1983-10-16
Abstract
No abstract record available.
Inventors
- 👤 William E Harper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:06
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/04; H01H33/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
225 words
IN AN ELECTRIC CIRCUIT BREAKER, IN COMBINATION, A PAIR OF SPACED APART ARC EXTINGUISHING UNIT ASSEMBLIES, EACH ASSEMBLY COMPRISING AN UPPER INTERRUPTING DEVICE HAVING A VERTICAL AXIS AND A LOWER INTERRUPTING DEVICE HAVING A VERTICAL AXIS, EACH OF SAID INTERRUPTING DEVICES HAVING A STATIONARY CONTACT THEREIN, ALL OF SAID DEVICES IN ONE OF SAID ASSEMBLIES HAING THEIR AXES LYING IN ONE VERTICAL PLANE AND ALL OF SAID DEVICES IN THE OTHER OF SAID ASSEMBLIES HAVING THEIR AXES LYING IN ANOTHER VERTICAL PLANE WHICH IS SPACED FROM AND PARALLEL TO SAID ONE VERTICAL PLANE, THE LOWER INTERRUPTING DEVICE IN EACH ASSEMBLY HAVING ITS AXIS OFFSET FROM BUT PARALLEL TO THE AXIS OF THE UPPER INTERRUPTING DEVICE, AND A MOVABLE CROSS BAR FOR COOPERATION WITH SAID PAIR OF ARC EXTINGUISHING ASSEMBLIES, SAID CROSS BAR HAVING ONE CROSS BAR CONTACT IN ALIGNMENT WITH THE AXIS OF ONE OF SAID DEVICES IN SAID ONE VERTICAL PLANE, SAID CROSS BAR FURTHER HAVING ONE MOVABLE CONTACT OPERATOR IN ALIGNMENT WITH THE AXIS OF THE OTHER OF SAID DEVICES IN SAID ONE VERTICAL PLANE, SAID CROSS BAR HAVING ANOTHER CROSS BAR CONTACT IN ALIGNMENT WITH THE AXIS OF ONE OF SAID DEVICES IN SAID OTHER VERTICAL PLANE, SAID CROSS BAR FURTHER HAVING ANOTHER MOVABLE CONTACT OPERATOR IN ALIGNMENT WITH THE AXIS OF THE OTHER OF SAID DEVICES IN SAID OTHER VERTICAL PLANE.
Claim 2
Dependent Claim
225 words
IN AN ELECTRIC CIRCUIT BREAKER, IN COMBINATION, A PAIR OF SPACED APART ARC EXTINGUISHING UNIT ASSEMBLIES, EACH ASSEMBLY COMPRISING AN UPPER INTERRUPTING DEVICE HAVING A VERTICAL AXIS AND A LOWER INTERRUPTING DEVICE HAVING A VERTICAL AXIS, EACH OF SAID INTERRUPTING DEVICES HAVING A STATIONARY CONTACT THEREIN, ALL OF SAID DEVICES IN ONE OF SAID ASSEMBLIES HAING THEIR AXES LYING IN ONE VERTICAL PLANE AND ALL OF SAID DEVICES IN THE OTHER OF SAID ASSEMBLIES HAVING THEIR AXES LYING IN ANOTHER VERTICAL PLANE WHICH IS SPACED FROM AND PARALLEL TO SAID ONE VERTICAL PLANE, THE LOWER INTERRUPTING DEVICE IN EACH ASSEMBLY HAVING ITS AXIS OFFSET FROM BUT PARALLEL TO THE AXIS OF THE UPPER INTERRUPTING DEVICE, AND A MOVABLE CROSS BAR FOR COOPERATION WITH SAID PAIR OF ARC EXTINGUISHING ASSEMBLIES, SAID CROSS BAR HAVING ONE CROSS BAR CONTACT IN ALIGNMENT WITH THE AXIS OF ONE OF SAID DEVICES IN SAID ONE VERTICAL PLANE, SAID CROSS BAR FURTHER HAVING ONE MOVABLE CONTACT OPERATOR IN ALIGNMENT WITH THE AXIS OF THE OTHER OF SAID DEVICES IN SAID ONE VERTICAL PLANE, SAID CROSS BAR HAVING ANOTHER CROSS BAR CONTACT IN ALIGNMENT WITH THE AXIS OF ONE OF SAID DEVICES IN SAID OTHER VERTICAL PLANE, SAID CROSS BAR FURTHER HAVING ANOTHER MOVABLE CONTACT OPERATOR IN ALIGNMENT WITH THE AXIS OF THE OTHER OF SAID DEVICES IN SAID OTHER VERTICAL PLANE.
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) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |