US3205782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power transmission
Assignee: Unisys Corp
•
Filing: 1962-05-28
•
Granted: 1965-09-14
•
Expires: 1982-05-28
Abstract
No abstract record available.
Inventors
- 👤 Tourtellotte Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:17
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; F15B13/04; F15B13/042; F15B13/043; F15B13/0436; F15B9/00; F15B9/16; F15B9/17; F15C; F15C3/00; F15C3/10; F15C3/12; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2322
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
IN A FLUID POWER AMPLIFIER, THE COMBINATION COMPRISING A HOUSING HAVING A BORE THEREIN, A SHIFTABLE MEMBER DISPOSED IN SAID BORE AND HAVING A PAIR OF LONGITUDINALLY SPACED CONTROL CHAMBERS, A RADIALLY EXTENDING BARRIER ON SAID MEMBER DISPOSED BETWEEN SAID CONTROL CHAMBERS, A DIFFUSER OPENING TO SAID BORE, SAID OPENING BEING OF LIMITED CIRCUMFERENTIAL WIDTH AND HAVING THE LONGITUDINAL LENGTH OF EACH CONTROL CHAMBER BEING AT LEAST ONE HALF THE LONGITUDINAL LENGTH OF SAID DIFFUSER OPENING, A LONGITUDINAL LENGTH GREATER THAN THE LONGITUDINAL WIDTH OF THE BARRIER, LONGITUDINALLY MOVABLE JET FORMING MEANS FOR DIRECTING A HIGH VELOCITY JET INTO SAID DIFFUSER OPENING, MEANS FORMING A PAIR OF OPPOSED PRESSURE EFFECTIVE AREAS ON SAID MEMBER, AND PASSAGE MEANS FOR TRANSMITTING PRESSURE FROM SAID CONTROL CHAMBERS TO SAID PRESSURE EFFECTIVE AREAS.
Claim 2
Dependent Claim
129 words
IN A FLUID POWER AMPLIFIER, THE COMBINATION COMPRISING A HOUSING HAVING A BORE THEREIN, A SHIFTABLE MEMBER DISPOSED IN SAID BORE AND HAVING A PAIR OF LONGITUDINALLY SPACED CONTROL CHAMBERS, A RADIALLY EXTENDING BARRIER ON SAID MEMBER DISPOSED BETWEEN SAID CONTROL CHAMBERS, A DIFFUSER OPENING TO SAID BORE, SAID OPENING BEING OF LIMITED CIRCUMFERENTIAL WIDTH AND HAVING THE LONGITUDINAL LENGTH OF EACH CONTROL CHAMBER BEING AT LEAST ONE HALF THE LONGITUDINAL LENGTH OF SAID DIFFUSER OPENING, A LONGITUDINAL LENGTH GREATER THAN THE LONGITUDINAL WIDTH OF THE BARRIER, LONGITUDINALLY MOVABLE JET FORMING MEANS FOR DIRECTING A HIGH VELOCITY JET INTO SAID DIFFUSER OPENING, MEANS FORMING A PAIR OF OPPOSED PRESSURE EFFECTIVE AREAS ON SAID MEMBER, AND PASSAGE MEANS FOR TRANSMITTING PRESSURE FROM SAID CONTROL CHAMBERS TO SAID PRESSURE EFFECTIVE AREAS.
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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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |