Patent US1825849A successfully refreshed from Google Patents.
Patent US3288202A successfully refreshed from Google Patents.
US3288202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston-lever rotary actuators for hatch covers and the like
Assignee: Houdaille Industries Inc
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Filing: 1964-01-15
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Granted: 1966-11-29
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Expires: 1984-01-15
Abstract
No abstract record available.
Inventors
- 👤 Rumsey Rollin Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:49
CPC Classifications
B; B63; B63B; B63B19/00; B63B19/12; B63B19/14; B63B19/19; B63B19/197
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
AN ASSEMBLY INCLUDING MEMBERS RELATIVELY MOVABLE ABOUT A HINGE JOINT, POWERED HINGE MEANS FOR HINGEDLY RELATIVELY MOVING SAID MEMBERS COMPRISING A PAIR OF OPPOSED COMPLEMENTARY COORDINATED ROTARY ACTUATORS HAVING RESPECTIVE HEAD PORTIONS ADJACENT TO SAID JOINT AND OPPOSITELY EXTENDING CRANK LEVER PORTIONS PROJECTING AWAY FROM SAID JOINT, MEANS OPERATIVELY CONNECTING THE HEAD PORTIONS FOR COORDINATED OPERATION, MEANS MOUNTTING SAID CRANK LEVER PORTIONS RIGIDLY ON SAID MEMBERS AT RESPECTIVELY OPPOSITE SIDES OF THE HINGE JOINT, AND MEANS FOR DRIVING THE ACTUATORS COMPRISING RESPECTIVE ELEMENTS MOVABLE RECIPROCABLEY RELATIVE TO SAID MEMBERS ON RESPECTIVE AXES ANGULAR TO SAID JOINT AND REACTING WITH SAID CRANK LEVER PORTIONS TO EFFECT RELATIVE MOVEMENT OF SAID MEMBERS.
Claim 2
Dependent Claim
110 words
AN ASSEMBLY INCLUDING MEMBERS RELATIVELY MOVABLE ABOUT A HINGE JOINT, POWERED HINGE MEANS FOR HINGEDLY RELATIVELY MOVING SAID MEMBERS COMPRISING A PAIR OF OPPOSED COMPLEMENTARY COORDINATED ROTARY ACTUATORS HAVING RESPECTIVE HEAD PORTIONS ADJACENT TO SAID JOINT AND OPPOSITELY EXTENDING CRANK LEVER PORTIONS PROJECTING AWAY FROM SAID JOINT, MEANS OPERATIVELY CONNECTING THE HEAD PORTIONS FOR COORDINATED OPERATION, MEANS MOUNTTING SAID CRANK LEVER PORTIONS RIGIDLY ON SAID MEMBERS AT RESPECTIVELY OPPOSITE SIDES OF THE HINGE JOINT, AND MEANS FOR DRIVING THE ACTUATORS COMPRISING RESPECTIVE ELEMENTS MOVABLE RECIPROCABLEY RELATIVE TO SAID MEMBERS ON RESPECTIVE AXES ANGULAR TO SAID JOINT AND REACTING WITH SAID CRANK LEVER PORTIONS TO EFFECT RELATIVE MOVEMENT OF SAID MEMBERS.
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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |