US3379203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pure fluid amplifier having positive and negative output pressures
Assignee: Bowles Engineering Corp
•
Filing: 1964-12-15
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Granted: 1968-04-23
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Expires: 1984-12-15
Abstract
No abstract record available.
Inventors
- 👤 Francis M Manion
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:53
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/08; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/218; Y10T137/2229; Y10T137/224; Y10T137/2256
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A FLUID-OPERATED SYSTEM COMPRISING: AN INTERACTION CHAMBER AND MEANS FOR ISSUING A STREAM OF FLUID UNDER PRESSURE INTO SAID INTERACTION CHAMBER; A SIDE WALL DEFINING AT LEAST ONE SIDE OF SAID INTERACTION CHAMBER AND HAVING A SURFACE LOCATED WITH RESPECT TO SAID STREAM SUCH THAT SAID STREAM MAY ATTACH TO SAID SURFACE AND FORM A BOUNDARY LAYER BUBBLE BETWEEN SAID STREAM AND SAID SURFACE; A PRESSURE RESPONSIVE MEANS LOCATED IN SAID BOUNDARY LAYER BUBBLE; CONTROL MEANS FOR DEFLECTING SAID STREAM RELATIVE TO SAID SURFACE AND SAID PRESSURE RESPONSIVE MEANS SUCH THAT VARYING PORTIONS OF SAID PRESSURE RESPONSIVE MEANS ARE SUBJECTED TO SAID STREAM.
Claim 2
Dependent Claim
103 words
A FLUID-OPERATED SYSTEM COMPRISING: AN INTERACTION CHAMBER AND MEANS FOR ISSUING A STREAM OF FLUID UNDER PRESSURE INTO SAID INTERACTION CHAMBER; A SIDE WALL DEFINING AT LEAST ONE SIDE OF SAID INTERACTION CHAMBER AND HAVING A SURFACE LOCATED WITH RESPECT TO SAID STREAM SUCH THAT SAID STREAM MAY ATTACH TO SAID SURFACE AND FORM A BOUNDARY LAYER BUBBLE BETWEEN SAID STREAM AND SAID SURFACE; A PRESSURE RESPONSIVE MEANS LOCATED IN SAID BOUNDARY LAYER BUBBLE; CONTROL MEANS FOR DEFLECTING SAID STREAM RELATIVE TO SAID SURFACE AND SAID PRESSURE RESPONSIVE MEANS SUCH THAT VARYING PORTIONS OF SAID PRESSURE RESPONSIVE MEANS ARE SUBJECTED TO SAID STREAM.
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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) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |