Patent US3143655A successfully refreshed from Google Patents.
US3091933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system
Assignee: General Electric Co
•
Filing: 1960-12-07
•
Granted: 1963-06-04
•
Expires: 1980-12-07
Abstract
No abstract record available.
Inventors
- 👤 James B Wagner
- 👤 Kenneth O Straney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:30
CPC Classifications
F; F01; F01D; F01D17/00; F01D17/20; F01D17/22; F01D17/24; F01K; F01K7/00; F01K7/16; F01K7/18; F01K7/20; F01K7/34; F01K7/345; H; H02; H02P; H02P23/00; H02P23/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
IN AN ELASTIC FLUID MULTI-STAGE TURBINE WHICH INCLUDES A ROTATABLY MOUNTED OUTPUT SHAFT, AN INLET VALVE GOVERNING THE FLOW OF FLUID TO THE TURBINE, AN EXTRACTION CONDUIT CONNECTED TO AN INTERMEDIATE STAGE OF THE TURBINE, AND AN EXTRACTION VALVE GOVERNING THE PROPORTION OF FLUID WHICH FLOWS FROM SAID INTERMEDIATE STAGE TO A SUCEEDING STAGE OF SAID TURBINE; THE COMBINATION COMPRISING MEANS RESPONSIVE TO THE SPEED OF SAID OUTPUT SHAFT FOR GENERATING A FIRST ELECTRIC SIGNAL WHICH IS A FUNCTION OF SAID SPEED, MEANS RESPONSIVE TO THE PRESSURE IN SAID EXTRACTION CONDUIT FOR GENERATING A SECOND ELECTRIC SIGNAL WHICH IS A FUNCTION OF SAID PRESSURE, MEANS FOR MODIFYING SAID FIRST SIGNAL WITH SAID SECOND SIGNAL, MEANS FOR MODIFYING SAID SECOND SIGNAL WITH SAID FIRST SIGNAL, THE MODIFIED FIRST SIGNAL CONTROLLING THE POSITION OF THE INLET VALVE, THE MODIFIED
Claim 2
Dependent Claim
137 words
IN AN ELASTIC FLUID MULTI-STAGE TURBINE WHICH INCLUDES A ROTATABLY MOUNTED OUTPUT SHAFT, AN INLET VALVE GOVERNING THE FLOW OF FLUID TO THE TURBINE, AN EXTRACTION CONDUIT CONNECTED TO AN INTERMEDIATE STAGE OF THE TURBINE, AND AN EXTRACTION VALVE GOVERNING THE PROPORTION OF FLUID WHICH FLOWS FROM SAID INTERMEDIATE STAGE TO A SUCEEDING STAGE OF SAID TURBINE; THE COMBINATION COMPRISING MEANS RESPONSIVE TO THE SPEED OF SAID OUTPUT SHAFT FOR GENERATING A FIRST ELECTRIC SIGNAL WHICH IS A FUNCTION OF SAID SPEED, MEANS RESPONSIVE TO THE PRESSURE IN SAID EXTRACTION CONDUIT FOR GENERATING A SECOND ELECTRIC SIGNAL WHICH IS A FUNCTION OF SAID PRESSURE, MEANS FOR MODIFYING SAID FIRST SIGNAL WITH SAID SECOND SIGNAL, MEANS FOR MODIFYING SAID SECOND SIGNAL WITH SAID FIRST SIGNAL, THE MODIFIED FIRST SIGNAL CONTROLLING THE POSITION OF THE INLET VALVE, THE MODIFIED
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) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |