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Patent US3342274A successfully refreshed from Google Patents.
US3342274A
Expired / Lapsed
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Sensing range adjustment for draft sensing mechanism
Assignee: Case LLC
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Filing: 1965-02-11
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Granted: 1967-09-19
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Expires: 1985-02-11
Abstract
No abstract record available.
Inventors
- 👤 Jr Alfred A Wridt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:22
CPC Classifications
A; A01; A01B; A01B63/00; A01B63/02; A01B63/10; A01B63/111; A01B63/112
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
IN A APPARATUS FOR CONTROLLING THE MAGNITUDE OF DRAFT EXERTED UPON A TRACTOR BY A TRACTOR-DRAWN EARTH WORKING IMPLEMENT AND THE LIKE, A DRAFT SENSING MECHANISM COMPRISING A WISHBONE-SHAPED, RESILIENT FRAME ASSEMBLY INTERPOSED IN DRAFT-LOAD TRANSMITTING RELATION BETWEEN THE IMPLEMENT AND THE TRACTOR, MEANS FOR ELONGATING SAID FRAME ASSEMBLY TO ESTABLISH A MINIMUM VALUE FOR A DESIRED SENSING RANGE, SAID MEANS COMPRISING AN ABUTMENT ENGAGEABLE BY ONE END OF SAID FRAME ASSEMBLY AND A ROTATABLE ECCENTRIC CAM ASSEMBLY ENGAGING THE OPPOSITE END
Claim 2
Dependent Claim
82 words
IN A APPARATUS FOR CONTROLLING THE MAGNITUDE OF DRAFT EXERTED UPON A TRACTOR BY A TRACTOR-DRAWN EARTH WORKING IMPLEMENT AND THE LIKE, A DRAFT SENSING MECHANISM COMPRISING A WISHBONE-SHAPED, RESILIENT FRAME ASSEMBLY INTERPOSED IN DRAFT-LOAD TRANSMITTING RELATION BETWEEN THE IMPLEMENT AND THE TRACTOR, MEANS FOR ELONGATING SAID FRAME ASSEMBLY TO ESTABLISH A MINIMUM VALUE FOR A DESIRED SENSING RANGE, SAID MEANS COMPRISING AN ABUTMENT ENGAGEABLE BY ONE END OF SAID FRAME ASSEMBLY AND A ROTATABLE ECCENTRIC CAM ASSEMBLY ENGAGING THE OPPOSITE END
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) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |