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Patent US3081121A successfully refreshed from Google Patents.
US3081121A
Expired / Lapsed
US
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Control mechanism for cargo release devices
Assignee: Eastern Rotorcraft Corp
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Filing: 1960-06-30
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Granted: 1963-03-12
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Expires: 1980-06-30
Abstract
No abstract record available.
Inventors
- 👤 Harris S Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:04
CPC Classifications
B; B64; B64D; B64D1/00; B64D1/22; Y; Y10; Y10T; Y10T74/00; Y10T74/11; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/20588
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A CARGO ENGAGING AND RELEASE DEVICE HAVING A SUPPORTING STRUCTURE, A LOAD CARRYING BEAM PIVOTALLY SUPPORTED ON SAID STRUCTURE, LATCH MECHANISM FOR RELEASING SAID BEAM INCLUDING A LEVER MEMBER PIVOTALLY SUPPORTED ON SAID STRUCTURE IN A POSITION TO CARRY A COMPRESSION LOAD WHILE IN CLOSED LOAD CARRYING POSITION, A PIVOT MEMBER SUPPORTED ON SAID STRUCTURE AT A POINT OFFSET ABOVE SAID LEVER, AN ARM ATTACHED TO SAID PIVOT MEMBER, A LINK HAVING ONE END PIVOTED TO THE END OF SAID ARM AND THE OTHER END PIVOTED TO SAID LEVER MEMBER, SAID LINK AND SAID ARM LYING IN SUBSTANTIALLY ALIGNED OVER-DEAD-CENTER RELATION WHEN THE LEVER IS IN CLOSED POSITION, A MANUALLY OPERABLE ELEMENT ATTACHED TO SAID PIVOT MEMBER, ROTATION OF SAID PIVOT MEMBER CAUSING SWINGING OF SAID ARM MEMBER AWAY FROM DEAD CENTER RELATION TO MOVE SAID LEVER AWAY FROM LOAD CARRYING POSITION THEREBY ALLOWING SAID BEAM TO MOVE TO LOAD RELEASE POSITION.
Claim 2
Dependent Claim
152 words
A CARGO ENGAGING AND RELEASE DEVICE HAVING A SUPPORTING STRUCTURE, A LOAD CARRYING BEAM PIVOTALLY SUPPORTED ON SAID STRUCTURE, LATCH MECHANISM FOR RELEASING SAID BEAM INCLUDING A LEVER MEMBER PIVOTALLY SUPPORTED ON SAID STRUCTURE IN A POSITION TO CARRY A COMPRESSION LOAD WHILE IN CLOSED LOAD CARRYING POSITION, A PIVOT MEMBER SUPPORTED ON SAID STRUCTURE AT A POINT OFFSET ABOVE SAID LEVER, AN ARM ATTACHED TO SAID PIVOT MEMBER, A LINK HAVING ONE END PIVOTED TO THE END OF SAID ARM AND THE OTHER END PIVOTED TO SAID LEVER MEMBER, SAID LINK AND SAID ARM LYING IN SUBSTANTIALLY ALIGNED OVER-DEAD-CENTER RELATION WHEN THE LEVER IS IN CLOSED POSITION, A MANUALLY OPERABLE ELEMENT ATTACHED TO SAID PIVOT MEMBER, ROTATION OF SAID PIVOT MEMBER CAUSING SWINGING OF SAID ARM MEMBER AWAY FROM DEAD CENTER RELATION TO MOVE SAID LEVER AWAY FROM LOAD CARRYING POSITION THEREBY ALLOWING SAID BEAM TO MOVE TO LOAD RELEASE POSITION.
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) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |