US3293835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lift system for the header and conditioner of a windrower
Assignee: Unisys Corp
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Filing: 1964-05-25
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Granted: 1966-12-27
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Expires: 1984-05-25
Abstract
No abstract record available.
Inventors
- 👤 Roland P Gehman
- 👤 Earl E Koch
- 👤 Horace G Mccarty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:23
CPC Classifications
A; A01; A01D; A01D43/00; A01D43/10; A01D43/107; A01D34/00; A01D34/01; A01D34/02; A01D34/125; A01D34/24; A01D41/00; A01D41/12; A01D41/14; A01D57/00; A01D57/20; A01D82/00; Y; Y10; Y10S; Y10S56/00; Y10S56/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
AN AGRICULTURAL MACHINE COMPRISING A WHEELED FRAME ADAPTED FOR GROUND TRAVEL FORWARDLY, A HEADER IN FRONT OF SAID FRAME AND EXTENDING TRANSVERSELY, SAID HEADER HAVING CROP GATHERING MEANS THEREON, A SUPPORT STRUCTURE FOR RAISING AND LOWERING SAID HEADER RELATIVE TO SAID FRAME, SAID STRUCTURE COMPRISING A LOWER LIFT LEG HAVING ONE END PIVOTALLY CONNECTED TO SAID FRAME AND AN OPPOSITE END PIVOTALLY CONNECTED TO SAID HEADER, A LIFT ARM AND A ROCKER COEXTENSIVE THEREWITH, MEANS PIVOTALLY CONNECTING SAID LIFT ARM AND ROCKER TO SAID FRAME, A LIFT ROD HAVING ONE END CONNECTED TO SAID LIFT LEG, LOST-MOTION CONNECTION MEANS BETWEEN AN OPPOSITE END OF SAID LIFT ROD AND SAID LIFT ARM, SPRING MEANS CONNECTING SAID ROCKER TO SAID LIFT LEG, A STOP ON SAID FRAME LIMITING PIVOTAL MOVEMENT OF SAID ROCKER IN ONE DIRECTION, AND AN ELEMENT ON SAID ROCKER WITH WHICH SAID LIFT ARM IS ENGAGEABLE WHEN PIVOTED IN ONE DIRECTION WHEREBY THE ROCKER MAY BE PIVOTED WITH THE LIFT ARM.
Claim 2
Dependent Claim
162 words
AN AGRICULTURAL MACHINE COMPRISING A WHEELED FRAME ADAPTED FOR GROUND TRAVEL FORWARDLY, A HEADER IN FRONT OF SAID FRAME AND EXTENDING TRANSVERSELY, SAID HEADER HAVING CROP GATHERING MEANS THEREON, A SUPPORT STRUCTURE FOR RAISING AND LOWERING SAID HEADER RELATIVE TO SAID FRAME, SAID STRUCTURE COMPRISING A LOWER LIFT LEG HAVING ONE END PIVOTALLY CONNECTED TO SAID FRAME AND AN OPPOSITE END PIVOTALLY CONNECTED TO SAID HEADER, A LIFT ARM AND A ROCKER COEXTENSIVE THEREWITH, MEANS PIVOTALLY CONNECTING SAID LIFT ARM AND ROCKER TO SAID FRAME, A LIFT ROD HAVING ONE END CONNECTED TO SAID LIFT LEG, LOST-MOTION CONNECTION MEANS BETWEEN AN OPPOSITE END OF SAID LIFT ROD AND SAID LIFT ARM, SPRING MEANS CONNECTING SAID ROCKER TO SAID LIFT LEG, A STOP ON SAID FRAME LIMITING PIVOTAL MOVEMENT OF SAID ROCKER IN ONE DIRECTION, AND AN ELEMENT ON SAID ROCKER WITH WHICH SAID LIFT ARM IS ENGAGEABLE WHEN PIVOTED IN ONE DIRECTION WHEREBY THE ROCKER MAY BE PIVOTED WITH THE LIFT ARM.
References Cited (Backward Citations)
US2989829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |