US3200756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable displacement motors and speed controls therefor
Assignee: Individual
•
Filing: 1962-10-15
•
Granted: 1965-08-17
•
Expires: 1982-10-15
Abstract
No abstract record available.
Inventors
- 👤 Jr George D Ratliff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:05
CPC Classifications
F; F04; F04C; F04C14/00; F04C14/18; F04C14/22; F04C14/223
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
IN COMBINATION IN A VARIABLE FLUID DISPLACEMENT DEVICE OF THE CHARACTER DESCRIBED, A ROTOR, A MODULATOR PROVIDING A CHAMBER NORMALLY ECCENTRICALLY DISPOSED RELATIVE TO THE ROTOR, A HOUSING PROVIDING BEARING SURFACES FOR AND ROTATABLY SUPPORTING SAID MODULATOR MEMBER IN FACE-TOFACE RELATION, SAID MODULATOR BEING MOUNTED FOR ADJUSTMENT RELATIVE TO THE ROTOR TO VARY THE RELATIVE FLUID DISPLACEMENT ECCENTRICITY OF THE CHAMBER AND THE ROTOR IN OPERATION, MEANS TO BIAS THE MODULATOR ADJUSTMENT IN ONE DIRECTION, AND A PLURALITY OF VANES HELD WITH RESPECT TO ROTATION RELATIVE TO THE ROTOR BUT MOVABLE RADIALLY TO MAINTAIN SLIDABLE CONTACT WITH THE MODULATOR.
Claim 2
Dependent Claim
99 words
IN COMBINATION IN A VARIABLE FLUID DISPLACEMENT DEVICE OF THE CHARACTER DESCRIBED, A ROTOR, A MODULATOR PROVIDING A CHAMBER NORMALLY ECCENTRICALLY DISPOSED RELATIVE TO THE ROTOR, A HOUSING PROVIDING BEARING SURFACES FOR AND ROTATABLY SUPPORTING SAID MODULATOR MEMBER IN FACE-TOFACE RELATION, SAID MODULATOR BEING MOUNTED FOR ADJUSTMENT RELATIVE TO THE ROTOR TO VARY THE RELATIVE FLUID DISPLACEMENT ECCENTRICITY OF THE CHAMBER AND THE ROTOR IN OPERATION, MEANS TO BIAS THE MODULATOR ADJUSTMENT IN ONE DIRECTION, AND A PLURALITY OF VANES HELD WITH RESPECT TO ROTATION RELATIVE TO THE ROTOR BUT MOVABLE RADIALLY TO MAINTAIN SLIDABLE CONTACT WITH THE MODULATOR.
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FR1261079A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |