US3240221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid amplifiers
Assignee: General Electric Co
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Filing: 1963-05-08
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Granted: 1966-03-15
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Expires: 1983-05-08
Abstract
No abstract record available.
Inventors
- 👤 Coda H T Pan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:18
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/14; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2229; Y10T137/2251; Y10T137/2256
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A FLUID AMPLIFIER COMPRISING: A POWER JET NOZZLE FOR PROJECTING A FLUID POWER JET HAVING A BOUNDARY LAYER; A PLURALITY OF FLUID RECEIVING MEANS POSITIONED DOWNSTREAM FROM SAID POWER JET NOZZLE; A CONTROL JET PORT ADJACENT SAID NOZZLE FOR DIRECTING A FIRST FLUID CONTROL JET AT SAID POWER JET; AND A CONCAVE RECESS IN THE WALL FORMED BETWEEN THE WALL FORMING SAID NOZZLE AND THE WALL FORMING SAID PORT, THE TERMINATING POINTS OF SAID CONCAVE RECESS BEING POSITIONED ADJACENT THE BOUNDARY LAYER OF SAID FLUID POWER JET WHEREBY A LOW PRESSURE IS FORMED IN SAID CONCAVE RECESS TO EXERT A FORCE ON SAID JET.
Claim 2
Dependent Claim
104 words
A FLUID AMPLIFIER COMPRISING: A POWER JET NOZZLE FOR PROJECTING A FLUID POWER JET HAVING A BOUNDARY LAYER; A PLURALITY OF FLUID RECEIVING MEANS POSITIONED DOWNSTREAM FROM SAID POWER JET NOZZLE; A CONTROL JET PORT ADJACENT SAID NOZZLE FOR DIRECTING A FIRST FLUID CONTROL JET AT SAID POWER JET; AND A CONCAVE RECESS IN THE WALL FORMED BETWEEN THE WALL FORMING SAID NOZZLE AND THE WALL FORMING SAID PORT, THE TERMINATING POINTS OF SAID CONCAVE RECESS BEING POSITIONED ADJACENT THE BOUNDARY LAYER OF SAID FLUID POWER JET WHEREBY A LOW PRESSURE IS FORMED IN SAID CONCAVE RECESS TO EXERT A FORCE ON SAID JET.
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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |