US3143656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for hydraulic turbine
Assignee: Allis Chalmers Corp
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Filing: 1961-01-24
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Granted: 1964-08-04
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Expires: 1981-01-24
Abstract
No abstract record available.
Inventors
- 👤 Beverly R Nichols
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:22
CPC Classifications
F; F03; F03B; F03B15/00; F03B15/02; F03B15/20; Y; Y02; Y02E; Y02E10/00; Y02E10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
IN A CONTROL SYSTEM FOR A HYDRAULIC TURBINE THE COMBINATION COMPRISING: GOVERNING MEANS; A PLURALITY OF FLUID FLOW DEVICES CAPABLE OF MOVEMENT THROUGH A PLURALITY OF POSITIONS BETWEEN OPEN AND CLOSED POSITIONS; A PLURALITY OF ACTUATING MECHANISMS CONNECTED TO SAID DEVICES, AT LEAST ONE OF SAID MECHANISMS BEING CONNECTED TO SAID GOVERNING MEANS WHEREBY PREDETERMINED MOVEMENTS OF SAID GOVERNING MEANS CAUSE SAID ONE OF SAID MECHANISMS TO MOVE ONE OF SAID DEVICES THROUGH SAID POSITIONS; MOTION TRANSMITTING MEANS CONNECTED BETWEEN SAID ONE OF SAID ACTUATING MECHANISMS AND THE REMAINDER OF SAID ACTUATING MECHANISMS TO MAINTAIN THE SAME OPERATIVE RELATIONSHIP BETWEEN ALL ACTUATING MECHANISMS; AND AN AUXILIARY ACTUATING MECHANISM SELECTIVELY ENGAGEABLE WITH SAID REMAINDER OF SAID MECHANISMS AND CAPABLE OF OVERRIDING SAID MOTION TRANSMITTING MEANS TO MOVE SAID REMAINDER OF SAID MECHANISMS IN A DEVICE CLOSING DIRECTION.
Claim 2
Dependent Claim
136 words
IN A CONTROL SYSTEM FOR A HYDRAULIC TURBINE THE COMBINATION COMPRISING: GOVERNING MEANS; A PLURALITY OF FLUID FLOW DEVICES CAPABLE OF MOVEMENT THROUGH A PLURALITY OF POSITIONS BETWEEN OPEN AND CLOSED POSITIONS; A PLURALITY OF ACTUATING MECHANISMS CONNECTED TO SAID DEVICES, AT LEAST ONE OF SAID MECHANISMS BEING CONNECTED TO SAID GOVERNING MEANS WHEREBY PREDETERMINED MOVEMENTS OF SAID GOVERNING MEANS CAUSE SAID ONE OF SAID MECHANISMS TO MOVE ONE OF SAID DEVICES THROUGH SAID POSITIONS; MOTION TRANSMITTING MEANS CONNECTED BETWEEN SAID ONE OF SAID ACTUATING MECHANISMS AND THE REMAINDER OF SAID ACTUATING MECHANISMS TO MAINTAIN THE SAME OPERATIVE RELATIONSHIP BETWEEN ALL ACTUATING MECHANISMS; AND AN AUXILIARY ACTUATING MECHANISM SELECTIVELY ENGAGEABLE WITH SAID REMAINDER OF SAID MECHANISMS AND CAPABLE OF OVERRIDING SAID MOTION TRANSMITTING MEANS TO MOVE SAID REMAINDER OF SAID MECHANISMS IN A DEVICE CLOSING DIRECTION.
References Cited (Backward Citations)
US705890A
Cited
US2158108A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |