US3368577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure amplifier
Assignee: Marquardt Corp
•
Filing: 1964-12-04
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Granted: 1968-02-13
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Expires: 1984-12-04
Abstract
No abstract record available.
Inventors
- 👤 Ben A Otsap
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:00
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/16; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2087; Y10T137/2098; Y10T137/218; Y10T137/2202
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A FLUID PRESSURE AMPLIFIER COMPRISING: A CASING CONTAINING A CYLINDRICAL FLUID CHAMBER; A NOZZLE COMPRISING A CONVERGING-DIVERGING NOZZLE FOR CONNECTING SAID CHAMBER WITH EXHAUST PRESSURE; A SUPPLY PORT FOR CONNECTING A FLUID SUPPLY SOURCE WITH THE THROAT OF SAID NOZZLE FOR PRODUCING A FLUID JET STREAM ACROSS SAID THROAT AND A VERTEX FLOW IN SAID CHAMBER; AT LEAST ONE OUTPUT PORT CONNECTED WITH THE THROAT OF SAID NOZZLE SUBSTANTIALLY OPPOSITE SAID SUPPLY PORT FOR SENSING AN AMPLIFIED OUTPUT PRESSURE; AND AT LEAST ONE SIGNAL INPUT PORT CONNECTED WITH SAID CHAMBER FOR INTRODUCING AT LEAST ONE VARIABLE SIGNAL PRESSURE INTO SAID VORTEX TO VARY THE STATIC PRESSURE
Claim 2
Dependent Claim
106 words
A FLUID PRESSURE AMPLIFIER COMPRISING: A CASING CONTAINING A CYLINDRICAL FLUID CHAMBER; A NOZZLE COMPRISING A CONVERGING-DIVERGING NOZZLE FOR CONNECTING SAID CHAMBER WITH EXHAUST PRESSURE; A SUPPLY PORT FOR CONNECTING A FLUID SUPPLY SOURCE WITH THE THROAT OF SAID NOZZLE FOR PRODUCING A FLUID JET STREAM ACROSS SAID THROAT AND A VERTEX FLOW IN SAID CHAMBER; AT LEAST ONE OUTPUT PORT CONNECTED WITH THE THROAT OF SAID NOZZLE SUBSTANTIALLY OPPOSITE SAID SUPPLY PORT FOR SENSING AN AMPLIFIED OUTPUT PRESSURE; AND AT LEAST ONE SIGNAL INPUT PORT CONNECTED WITH SAID CHAMBER FOR INTRODUCING AT LEAST ONE VARIABLE SIGNAL PRESSURE INTO SAID VORTEX TO VARY THE STATIC PRESSURE
References Cited (Backward Citations)
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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) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |