US3098387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1957-08-19
•
Granted: 1963-07-23
•
Expires: 1977-08-19
Abstract
No abstract record available.
Inventors
- 👤 Marshall J Corbett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:53
CPC Classifications
F; F01; F01D; F01D17/00; F01D17/02; F01D17/08; F01D17/085
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
67 words
IN A HOT GAS FLOW SYSTEM, AN AERODYNAMICALLY SPEEDLIMITED TURBINE HAVING AN INLET AND AN OUTLET, MEANS FOR APPLYING HOT GAS FROM SAID SYSTEM TO SAID INLET, MEANS FOR MAINTAINING A CONSTANT PRESSURE RATIO BETWEEN SAID INLET AND SAID OUTLET, AND PUMP MEANS DRIVEN BY SAID TURBINE AND ARRANGED TO PRODUCE A FLUID PRESSURE SIGNAL PROPORTIONAL TO THE SQUARE OF THE VELOCITY OF ROTATION OF SAID TURBINE.
References Cited (Backward Citations)
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Cited
US2364810A
Cited
US2549621A
Cited
US2426045A
Cited
US2649686A
Cited
US2708343A
Cited
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Cited
US2756596A
Cited
GB654344A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |