US3201539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single turn trip coil having novel core and armature configurations
Assignee: ITE Circuit Breaker Co
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Filing: 1963-01-23
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Granted: 1965-08-17
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Expires: 1983-01-23
Abstract
No abstract record available.
Inventors
- 👤 James H Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:20
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/12; H01H71/24; H01H71/2472
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
A DEVICE OF THE CLASS DESCRIBED COMPRISING A GENERALLY U-SHAPED MAGNET MEMBER HAVING A WEB AND ARMS EXTENDING FORWARDLY FROM SAID WEB, FIRST MEANS DEFINING A PIVOT EXTENDING TRANSVERSE TO THE PLANES IN WHICH SAID ARMS ARE DISPOSED, AN ARMATURE MEMBER MOUNTED AT ITS FIRST END TO SAID PIVOT, SECOND MEANS BIASING THE SECOND END OF SAID ARMATURE TO A POSITION FORWARD OF SAID ARMS WHEN SAID MAGNET IS DEENERGIZED; SAID ARMATURE WHEN IN ITS DEENERGIZED CONDITION SEPARATED FROM THE POLE FACES OF SAID MAGNET BY A SUBSTANTIALLY V-SHAPED GAP, HAVING A MINIMUM DIMENSION AT THE PIVOT, AND PROGRESSIVELY INCREASING IN GAP-SEPARATION TOWARD SAID SECOND END; ONE OF SAID MEMBERS HAVING A PORTION AT SAID SECOND END EXTENDING INTO THE V-SHAPED GAP; SAID LAST-MENTIONED PORTION DIMENSION TO REDUCE THE GAP-SEPARATION AT SAID SECOND END, CORRESPONDING TO SAID DEENERGIZING CONDITION, WHILE PERMITTING THE ARMATURE WHEN ENERGIZED TO CLOSE THE V GAP IN THE VICINITY OF SAID PIVOT END.
Claim 2
Independent Claim
157 words
A DEVICE OF THE CLASS DESCRIBED COMPRISING A GENERALLY U-SHAPED MAGNET MEMBER HAVING A WEB AND ARMS EXTENDING FORWARDLY FROM SAID WEB, FIRST MEANS DEFINING A PIVOT EXTENDING TRANSVERSE TO THE PLANES IN WHICH SAID ARMS ARE DISPOSED, AN ARMATURE MEMBER MOUNTED AT ITS FIRST END TO SAID PIVOT, SECOND MEANS BIASING THE SECOND END OF SAID ARMATURE TO A POSITION FORWARD OF SAID ARMS WHEN SAID MAGNET IS DEENERGIZED; SAID ARMATURE WHEN IN ITS DEENERGIZED CONDITION SEPARATED FROM THE POLE FACES OF SAID MAGNET BY A SUBSTANTIALLY V-SHAPED GAP, HAVING A MINIMUM DIMENSION AT THE PIVOT, AND PROGRESSIVELY INCREASING IN GAP-SEPARATION TOWARD SAID SECOND END; ONE OF SAID MEMBERS HAVING A PORTION AT SAID SECOND END EXTENDING INTO THE V-SHAPED GAP; SAID LAST-MENTIONED PORTION DIMENSION TO REDUCE THE GAP-SEPARATION AT SAID SECOND END, CORRESPONDING TO SAID DEENERGIZING CONDITION, WHILE PERMITTING THE ARMATURE WHEN ENERGIZED TO CLOSE THE V GAP IN THE VICINITY OF SAID PIVOT END.
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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |