Patent US3111779A successfully refreshed from Google Patents.
US3111779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevating grader
Assignee: Ulrich Manufacturing Co
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Filing: 1961-03-13
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Granted: 1963-11-26
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Expires: 1981-03-13
Abstract
No abstract record available.
Inventors
- 👤 Raymond M Ulrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:26
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/7695
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
IN AN ELEVATING GRADER, THE COMBINATION OF A BEAM PIVOTALLY CONNECTABLE TO A TRACTOR FRAME ABOUT A FIRST AXIS EXTENDING LONGITUDINALLY OF SAID FRAME, A PLOW SUSPENDED FROM SAID BEAM, A CONVEYOR INCLUDING ROLLERS AT OPPOSITE ENDS THEREOF AND AN ENDLESS BELT EXTENDING ABOUT SAID ROLLERS, SAID CONVEYOR HAVING ONE END PORTION DISPOSED BELOW SAID BEAM AND MEANS PIVOTALLY MOUNTING SAID END PORTION TO SAID BEAM FOR MOVEMENT ABOUT A HORIZONTAL AXIS SPACED PARALLEL TO AND BELOW SAID FIRST AXIS ABOUT WHICH THE BEAM IS PIVOTALLY MOUNTABLE, SAID HORIZONTAL AXIS ESSENTIALLY COINCIDING WITH THE AXIS OF THE ROLLER AT SAID END OF THE CONVEYOR, MEANS FOR SUPPORTING SAID CONVEYOR IN AN INCLINED POSITION, AND MEANS FOR ADJUSTING THE BEAM ABOUT SAID FIRST AXIS TO RAISE AND LOWER THE PLOW, THE LOWER END OF THE CONVEYOR MOVING WITH SAID ADJUSTMENT OF THE BEAM SO AS TO MAINTAIN A PREDETERMINED ALIGNMENT AND SPACING OF THE PLOW WITH RESPECT TO THE SAID LOWER END OF THE CONVEYOR.
Claim 2
Dependent Claim
164 words
IN AN ELEVATING GRADER, THE COMBINATION OF A BEAM PIVOTALLY CONNECTABLE TO A TRACTOR FRAME ABOUT A FIRST AXIS EXTENDING LONGITUDINALLY OF SAID FRAME, A PLOW SUSPENDED FROM SAID BEAM, A CONVEYOR INCLUDING ROLLERS AT OPPOSITE ENDS THEREOF AND AN ENDLESS BELT EXTENDING ABOUT SAID ROLLERS, SAID CONVEYOR HAVING ONE END PORTION DISPOSED BELOW SAID BEAM AND MEANS PIVOTALLY MOUNTING SAID END PORTION TO SAID BEAM FOR MOVEMENT ABOUT A HORIZONTAL AXIS SPACED PARALLEL TO AND BELOW SAID FIRST AXIS ABOUT WHICH THE BEAM IS PIVOTALLY MOUNTABLE, SAID HORIZONTAL AXIS ESSENTIALLY COINCIDING WITH THE AXIS OF THE ROLLER AT SAID END OF THE CONVEYOR, MEANS FOR SUPPORTING SAID CONVEYOR IN AN INCLINED POSITION, AND MEANS FOR ADJUSTING THE BEAM ABOUT SAID FIRST AXIS TO RAISE AND LOWER THE PLOW, THE LOWER END OF THE CONVEYOR MOVING WITH SAID ADJUSTMENT OF THE BEAM SO AS TO MAINTAIN A PREDETERMINED ALIGNMENT AND SPACING OF THE PLOW WITH RESPECT TO THE SAID LOWER END OF THE CONVEYOR.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-25 | 1967-05-27 | 1967-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-25 | 1971-05-27 | 1971-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-25 | 1975-05-27 | 1975-11-26 | $7700.00 | Window Closed / Lapsed |