Patent US2586793A successfully refreshed from Google Patents.
Patent US3225664A successfully refreshed from Google Patents.
US3225664A
Expired / Lapsed
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Snubbing means for rotary hydraulic actuators
Assignee: Houdaille Industries Inc
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Filing: 1964-01-09
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Granted: 1965-12-28
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Expires: 1984-01-09
Abstract
No abstract record available.
Inventors
- 👤 Rumsey Rollin Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:05
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/08; F15B15/12; F15B15/20; F15B15/22; F15B15/224
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
IN A ROTARY HYDRAULIC ACTUATOR CONSTRUCTION INCLUDING A HOUSING DEFINING A WORKING CHAMBER HAVING AN ABUTMENT THEREIN WITH A HYDRAULIC FLUID EXHAUST PORT IN A WALL SURFACE DEFINING THE CHAMBER ADJACENT TO THE ABUTMENT AND LOCATED TO BE COVERED BY A VANE RELATIVELY OSCILLATABLY RESPONSIVE TO HYDRAULIC PRESSURE FLUID WITHIN THE WORKING CHAMBER TO EFFECT RELATIVE OSCILLATION OF THE
Claim 2
Dependent Claim
59 words
IN A ROTARY HYDRAULIC ACTUATOR CONSTRUCTION INCLUDING A HOUSING DEFINING A WORKING CHAMBER HAVING AN ABUTMENT THEREIN WITH A HYDRAULIC FLUID EXHAUST PORT IN A WALL SURFACE DEFINING THE CHAMBER ADJACENT TO THE ABUTMENT AND LOCATED TO BE COVERED BY A VANE RELATIVELY OSCILLATABLY RESPONSIVE TO HYDRAULIC PRESSURE FLUID WITHIN THE WORKING CHAMBER TO EFFECT RELATIVE OSCILLATION OF THE
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) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |