Patent US3387862A successfully refreshed from Google Patents.
US3387862A
Expired / Lapsed
US
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Tractor hitch with sway limiting mechanism
Assignee: Deutz Allis Corp
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Filing: 1966-12-01
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Granted: 1968-06-11
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Expires: 1986-12-01
Abstract
No abstract record available.
Inventors
- 👤 John R Plate
- 👤 Donald E Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:07
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/04; B62D53/08; B62D53/0871; A; A01; A01B; A01B59/00; A01B59/04; A01B59/041; B62D49/00; B62D49/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A TRACTOR HITCH DEVICE COMPRISING, A PAIR OF DRAFT ARMS, MEANS UNIVERSALLY ROTATABLY SUPPORTING THE FORWARD END OF THE SAID DRAFT ARMS ON A COMMON HORIZONTAL AXIS OF ROTATION, A PAIR OF TENSION MEMBERS SINGULARLY CONNECTED TO THE INTERMEDIATE PORTION OF SAID DRAFT ARMS, PIVOTAL MEANS PIVOTALLY SUPPORTED FOR LIMITED PIVOTAL MOVEMENT ON SUBSTANTIALLY THE SAME HORIZONTAL AXIS OF ROTATION AND SEVERALLY CONNECTING SAID TENSION MEMBERS FOR PIVOTAL MOVEMENT ABOUT ANOTHER AXIS OF ROTATION, LIFT MEANS INCLUDING LINKS CONNECTED TO SAID DRAFT ARMS TO PIVOTALLY RAISE SAID HITCH DEVICE AND CAUSING SAID DRAFT ARMS TO PIVOT ABOUT SAID COMMON HORIZONTAL AXIS AND SAID TENSION MEMBERS TO PIVOT ABOUT SAID OTHER AXIS OF ROTATION AND THEREBY CAUSE A TENSIONING OF SAID TENSION MEMBERS AND ELIMINATE LATERAL SWAY WHEN SAID HITCH DEVICE IS IN THE RAISED POSITION.
Claim 2
Dependent Claim
135 words
A TRACTOR HITCH DEVICE COMPRISING, A PAIR OF DRAFT ARMS, MEANS UNIVERSALLY ROTATABLY SUPPORTING THE FORWARD END OF THE SAID DRAFT ARMS ON A COMMON HORIZONTAL AXIS OF ROTATION, A PAIR OF TENSION MEMBERS SINGULARLY CONNECTED TO THE INTERMEDIATE PORTION OF SAID DRAFT ARMS, PIVOTAL MEANS PIVOTALLY SUPPORTED FOR LIMITED PIVOTAL MOVEMENT ON SUBSTANTIALLY THE SAME HORIZONTAL AXIS OF ROTATION AND SEVERALLY CONNECTING SAID TENSION MEMBERS FOR PIVOTAL MOVEMENT ABOUT ANOTHER AXIS OF ROTATION, LIFT MEANS INCLUDING LINKS CONNECTED TO SAID DRAFT ARMS TO PIVOTALLY RAISE SAID HITCH DEVICE AND CAUSING SAID DRAFT ARMS TO PIVOT ABOUT SAID COMMON HORIZONTAL AXIS AND SAID TENSION MEMBERS TO PIVOT ABOUT SAID OTHER AXIS OF ROTATION AND THEREBY CAUSE A TENSIONING OF SAID TENSION MEMBERS AND ELIMINATE LATERAL SWAY WHEN SAID HITCH DEVICE IS IN THE RAISED 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) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |