Patent US3173496A successfully refreshed from Google Patents.
US3173496A
Expired / Lapsed
US
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Tractor hitch arrangement
Assignee: AGCO Ltd
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Filing: 1962-05-01
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Granted: 1965-03-16
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Expires: 1982-05-01
Abstract
No abstract record available.
Inventors
- 👤 Robert B Annat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:29
CPC Classifications
A; A01; A01B; A01B63/00; A01B63/14; A01B63/145; A01B59/00; A01B59/06; A01B59/061; A01B59/062; A01B63/02; A01B63/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
IN COMBINATION WITH A TRACTOR AND A WHEEL SUPPORTED IMPLEMENT, A HITCH MECHANISM COMPRISING, A PAIR OF TRAILING DRAFT LINKS ON SAID TRACTOR, AN UPPER CONTROL LINK CONNECTED TO SAID TRACTOR ABOVE SAID DRAFT LINKS, AN AUXILIARY FRAME PIVOTED ON SAID DRAFT LINKS AND SAID CONTROL LINK FOR UP AND DOWN MOVEMENT THEREWITH, MEANS INCLUDING AN AUXILIARY LINK PIVOTED AT ONE END TO SAID AUXILIARY FRAME AND AT THE OTHER END TO SAID IMPLEMENT SO AS TO MOUNTE SAID IMPLEMENT ON SAID AUXILIARY FRAME FOR UP AND DOWN FLOATING MOVEMENT RELATIVE THERETO, A STABILIZING LINK PIVOTALLY CONNECTED TO SAID TRACTOR AND DIRECTLY TO SAID IMPLEMENT AT A POINT SPACED FROM THE PIVOTAL CONNECTION BETWEEN SAID AUXILAIRY LINK AND SAID IMPLEMENT FOR SUBSTANTIALLY MAINTAINING THE ANGUALR DISPOSITION OF SAID IMPLEMENT AS IT FLOATS ON SAID AUXILIARY FRAME, AND SUBSTANTIALLY VERTICAL TIE COUPLING SAID IMPLEMENT AND THE UPPER PORTION OF SAID AUXILIARY FRAME SO AS TO TENSION SAID CONTROL LINK AND TRANSFER A PORTION OF THE IMPLEMENT WEIGHT FROM SAID IMPLEMENT WHEEL TO SAID TRACTOR.
Claim 2
Dependent Claim
173 words
IN COMBINATION WITH A TRACTOR AND A WHEEL SUPPORTED IMPLEMENT, A HITCH MECHANISM COMPRISING, A PAIR OF TRAILING DRAFT LINKS ON SAID TRACTOR, AN UPPER CONTROL LINK CONNECTED TO SAID TRACTOR ABOVE SAID DRAFT LINKS, AN AUXILIARY FRAME PIVOTED ON SAID DRAFT LINKS AND SAID CONTROL LINK FOR UP AND DOWN MOVEMENT THEREWITH, MEANS INCLUDING AN AUXILIARY LINK PIVOTED AT ONE END TO SAID AUXILIARY FRAME AND AT THE OTHER END TO SAID IMPLEMENT SO AS TO MOUNTE SAID IMPLEMENT ON SAID AUXILIARY FRAME FOR UP AND DOWN FLOATING MOVEMENT RELATIVE THERETO, A STABILIZING LINK PIVOTALLY CONNECTED TO SAID TRACTOR AND DIRECTLY TO SAID IMPLEMENT AT A POINT SPACED FROM THE PIVOTAL CONNECTION BETWEEN SAID AUXILAIRY LINK AND SAID IMPLEMENT FOR SUBSTANTIALLY MAINTAINING THE ANGUALR DISPOSITION OF SAID IMPLEMENT AS IT FLOATS ON SAID AUXILIARY FRAME, AND SUBSTANTIALLY VERTICAL TIE COUPLING SAID IMPLEMENT AND THE UPPER PORTION OF SAID AUXILIARY FRAME SO AS TO TENSION SAID CONTROL LINK AND TRANSFER A PORTION OF THE IMPLEMENT WEIGHT FROM SAID IMPLEMENT WHEEL TO SAID TRACTOR.
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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |