US3105126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interrupting device employing continuous hydraulic control
Assignee: Allis Chalmers Corp
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Filing: 1960-06-15
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Granted: 1963-09-24
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Expires: 1980-06-15
Abstract
No abstract record available.
Inventors
- 👤 Henry L Peek
- 👤 Julius W Timmerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:41
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/28; H01H33/30; H01H33/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A CIRCUIT INTERRUPTING DEVICE COMPRISING A PAIR OF RELATIVELY MOVABLE CONTACTS, A MOTOR COMPRISING A CYLINDER AND A DIFFERENTIAL PISTON FOR CAUSING RELATIVE MOVEMENT OF SAID CONTACTS, A SOURCE OF FLUID UNDER PRESSURE, A VALVE HAVING A DIFFERENTIAL VALVE ELEMENT, MEANS FOR SIMULTANEOUSLY CONNECTING SAID SOURCE OF FLUID TO ONE END OF SAID CYLINDER AND TO ONE SIDE OF SAID VALVE ELEMENT FOR BIASING SAID PISTON AND SAID VALVE ELEMENT IN ONE DIRECTION, AND MEANS FOR ACTUATING SAID VALVE ELEMENT IN A SECOND DIRECTION, SAID VALVE UPON ACTUATION THEREOF INITIATING ACTUATION OF SAID PISTON IN A SECOND DIRECTION, SAID VALVE AND SAID PISTON BEING ACTUATED AGAINST THE BIAS OF SAID SOURCE.
Claim 2
Dependent Claim
111 words
A CIRCUIT INTERRUPTING DEVICE COMPRISING A PAIR OF RELATIVELY MOVABLE CONTACTS, A MOTOR COMPRISING A CYLINDER AND A DIFFERENTIAL PISTON FOR CAUSING RELATIVE MOVEMENT OF SAID CONTACTS, A SOURCE OF FLUID UNDER PRESSURE, A VALVE HAVING A DIFFERENTIAL VALVE ELEMENT, MEANS FOR SIMULTANEOUSLY CONNECTING SAID SOURCE OF FLUID TO ONE END OF SAID CYLINDER AND TO ONE SIDE OF SAID VALVE ELEMENT FOR BIASING SAID PISTON AND SAID VALVE ELEMENT IN ONE DIRECTION, AND MEANS FOR ACTUATING SAID VALVE ELEMENT IN A SECOND DIRECTION, SAID VALVE UPON ACTUATION THEREOF INITIATING ACTUATION OF SAID PISTON IN A SECOND DIRECTION, SAID VALVE AND SAID PISTON BEING ACTUATED AGAINST THE BIAS OF SAID SOURCE.
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) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |