US3236497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic pumps and pump-turbines
Assignee: English Electric Co Ltd
•
Filing: 1963-02-28
•
Granted: 1966-02-22
•
Expires: 1983-02-28
Abstract
No abstract record available.
Inventors
- 👤 Wycliffe Jozef Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:54
CPC Classifications
F; F03; F03B; F03B3/00; F03B3/16; F03B3/18; F03B3/183; F03B15/00; F03B15/02; F03B15/04; F03B15/06; F03B15/08; Y; Y02; Y02E; Y02E10/00; Y02E10/20; Y10; Y10S; Y10S415/00; Y10S415/91
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A ROTARY HYDRAULIC MACHINE COMPRISING A MACHINE CASING, A ROTOR MOUNTED FOR ROTATION IN SAID CASING, A PLURALITY OF GUIDE VANES DISPOSED IN SAID CASING AROUND THE ROTOR, FLUID-PRESSURE OPERATED GUIDE VANE LOCKING MEANS ARRANGED ADJACENT THE GUIDE VANES, ELECTRICALLYOPERATED TWO-POSITION GUIDE VANE LOCK OPERATING MEANS OPERATIVELY CONNECTED TO SAID GUIDE VANE LOCKING MEANS AND ARRANGED SO AS IN A FIRST SAID POSITION TO CAUSE THE GUIDE VANE LOCKING MEANS TO LOCK THE GUIDE VANES AGAINST MOVEMENT RELATIVE TO SAID CASING AND IN A SECOND POSITION TO CAUSE THE GUIDE VANE LOCKING MEANS TO UNLOCK THE GUIDE VANES, FLUID-PRESSURE OPERATED GUIDE VANE ACTUATING
Claim 2
Dependent Claim
103 words
A ROTARY HYDRAULIC MACHINE COMPRISING A MACHINE CASING, A ROTOR MOUNTED FOR ROTATION IN SAID CASING, A PLURALITY OF GUIDE VANES DISPOSED IN SAID CASING AROUND THE ROTOR, FLUID-PRESSURE OPERATED GUIDE VANE LOCKING MEANS ARRANGED ADJACENT THE GUIDE VANES, ELECTRICALLYOPERATED TWO-POSITION GUIDE VANE LOCK OPERATING MEANS OPERATIVELY CONNECTED TO SAID GUIDE VANE LOCKING MEANS AND ARRANGED SO AS IN A FIRST SAID POSITION TO CAUSE THE GUIDE VANE LOCKING MEANS TO LOCK THE GUIDE VANES AGAINST MOVEMENT RELATIVE TO SAID CASING AND IN A SECOND POSITION TO CAUSE THE GUIDE VANE LOCKING MEANS TO UNLOCK THE GUIDE VANES, FLUID-PRESSURE OPERATED GUIDE VANE ACTUATING
References Cited (Backward Citations)
US1986916A
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US2047219A
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US2277255A
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US2694470A
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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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |