Patent US3309850A successfully refreshed from Google Patents.
US3309850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hay harvesting machine
Assignee: Unisys Corp
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Filing: 1965-01-05
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Granted: 1967-03-21
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Expires: 1985-01-05
Abstract
No abstract record available.
Inventors
- 👤 Emmett F Glass
- 👤 John K Hale
- 👤 Richard P Bernhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:51
CPC Classifications
A; A01; A01D; A01D43/00; A01D43/10; A01D43/102
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A HAY CONDITIONING DEVICE COMPRISING A MOBILE FRAME ADAPTED TO TRAVEL IN A FORWARD DIRECTION, A FIRST HAY CONDITIONING ROLL JOURNALLED ON SAID FRAME IN A FIXED POSITION AND EXTENDING TRANSVERSE TO THE DIRECTION OF TRAVEL, A SECOND HAY CONDITIONING ROLL NORMALLY ENGAGING SAID FIRST ROLL AND DISPOSED ABOVE AND PARALLEL TO SAID FIRST ROLL, MEANS MOUNTING SAID SECOND ROLL ON SAID FRAME FOR ROTATION ABOUT ITS OWN AXIS AND FOR VERTICAL SWINGING MOVEMENT UPWARDLY OUT OF ENGAGEMENT WITH SAID FIRST ROLL, A SINGLE ELONGATED COIL TENSION SPRING SUPPORTED ON SAID FRAME PARALLEL TO SAID ROLLS AND DISPOSED BELOW SAID SECOND ROLL, FIRST AND SECOND GUIDE MEANS MOUNTED ON SAID FRAME RESPECTIVELY BELOW THE ENDS OF SAID SECOND ROLL, FIRST AND SECOND FLEXIBLE MEMBERS RESPECTIVELY CONNECTED TO THE ENDS OF SAID COIL SPRING AND TO SAID SECOND ROLL MOUNTING MEANS ADJACENT THE ENDS OF SAID SECOND
Claim 2
Dependent Claim
146 words
A HAY CONDITIONING DEVICE COMPRISING A MOBILE FRAME ADAPTED TO TRAVEL IN A FORWARD DIRECTION, A FIRST HAY CONDITIONING ROLL JOURNALLED ON SAID FRAME IN A FIXED POSITION AND EXTENDING TRANSVERSE TO THE DIRECTION OF TRAVEL, A SECOND HAY CONDITIONING ROLL NORMALLY ENGAGING SAID FIRST ROLL AND DISPOSED ABOVE AND PARALLEL TO SAID FIRST ROLL, MEANS MOUNTING SAID SECOND ROLL ON SAID FRAME FOR ROTATION ABOUT ITS OWN AXIS AND FOR VERTICAL SWINGING MOVEMENT UPWARDLY OUT OF ENGAGEMENT WITH SAID FIRST ROLL, A SINGLE ELONGATED COIL TENSION SPRING SUPPORTED ON SAID FRAME PARALLEL TO SAID ROLLS AND DISPOSED BELOW SAID SECOND ROLL, FIRST AND SECOND GUIDE MEANS MOUNTED ON SAID FRAME RESPECTIVELY BELOW THE ENDS OF SAID SECOND ROLL, FIRST AND SECOND FLEXIBLE MEMBERS RESPECTIVELY CONNECTED TO THE ENDS OF SAID COIL SPRING AND TO SAID SECOND ROLL MOUNTING MEANS ADJACENT THE ENDS OF SAID SECOND
References Cited (Backward Citations)
US2921426A
Cited
US2958991A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |