Patent US3918527A successfully refreshed from Google Patents.
US3918527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cable controlled draft load and position sensing linkage
Assignee: Deutz Allis Corp
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Filing: 1973-05-31
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Granted: 1975-11-11
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Expires: 1993-05-31
Abstract
Abstract A cable controlled linkage for draft load and implement position sensing in a weight distribution system on a tractor. The cables transmit manual control signals while the sheaths of the cables transmit a feedback signal from a position sensing linkage responsive to position changes of the implement and a feedback signal from a draft load sensing linkage responsive to draft load changes.
Inventors
- 👤 Robert J Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:25
CPC Classifications
A; A01; A01B; A01B63/00; A01B63/02; A01B63/10; A01B63/111; A01B63/112
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
174 words
A control mechanism on a tractor adapted for operating a hydraulic valve of a hydraulic weight distribution system comprising, valve actuating means, implement hitching means adapted for connection to an implement, manual control means including at least one of an implement position control and a draft load control, at least one of draft load sensing means and implement position sensing means connected to said implement hitching means, at least one pair of flexible elements including a guided element and a guiding element slidably movable relative to each other, means connecting the first of said flexible elements between said manual control means and said valve actuating means for adjustably positioning said valve actuating means, valve compensating means connected to said valve actuating means, means connecting at least one of said draft control sensing means and said position control sensing means through the second of said flexible elements to said valve compensating means to thereby provide a compensating movement to said valve compensating means to modify the movement of said valve actuating means during valve actuation.
Claim 2
Dependent Claim
174 words
A control mechanism on a tractor adapted for operating a hydraulic valve of a hydraulic weight distribution system comprising, valve actuating means, implement hitching means adapted for connection to an implement, manual control means including at least one of an implement position control and a draft load control, at least one of draft load sensing means and implement position sensing means connected to said implement hitching means, at least one pair of flexible elements including a guided element and a guiding element slidably movable relative to each other, means connecting the first of said flexible elements between said manual control means and said valve actuating means for adjustably positioning said valve actuating means, valve compensating means connected to said valve actuating means, means connecting at least one of said draft control sensing means and said position control sensing means through the second of said flexible elements to said valve compensating means to thereby provide a compensating movement to said valve compensating means to modify the movement of said valve actuating means during valve actuation.
Claim 3
Dependent Claim
46 words
A control mechanism on a tractor adapted for operating a hydraulic valve of a hydraulic weight distribution system as set forth in claim 1 wherein said implement hitching means includes a three-point hitch including a pair of lower draft arms adapted for connection to an implement.
Claim 4
Dependent Claim
54 words
A control mechanism on a tractor adapted for operating a hydraulic valve of a hydraulic weight distribution system as set forth in claim 1 wherein said implement hitching means includes an implement positioning means adapted for raising and lowering of the implement, means connecting said implement positioning means to said implement position sensing means.
Claim 5
Dependent Claim
59 words
A control mechanism on a tractor adapted for operating a hydraulic valve of a hydraulic weight distribution system as set forth in claim 1 wherein said valve actuating means includes pIvotally mounted valve actuating arms, said valve compensating means includes pivotally mounted compensating arms operating in response to implement position and draft load to compensate the valve actuating means.
Claim 6
Dependent Claim
122 words
A control mechanism on a tractor adapted for operating a hydraulic valve of a hydraulic weight distribution system as set forth in claim 1 wherein said implement hitching means includes an implement positioning means, said implement position sensing means connected to said implement positioning means, a draft member, said draft load sensing means connected to said draft member, means connecting said implement position sensing means to said valve compensating means through a second element of a first pair of said flexible elements and means connecting said draft load sensing means to said valve compensating means through a second element of a second pair of said flexible elements to thereby control said valve actuating means in response to draft load and implement position.
Claim 7
Dependent Claim
116 words
A control mechanism on a tractor adapted for operating a hydraulic valve of a hydraulic weight distribution system as set forth in claim 1 wherein said valve actuating means includes a pivotally supported valve actuator, said valve compensating means includes pivotally supported valve compensating means, said pair of flexible elements includes a sheathed cable having a sheath guiding a cable defining said guiding and said guided elements, means connecting said cable between said manual means and said valve actuating means, means connecting the sheath of said sheathed cable to said draft load sensing means and to said valve compensating means to thereby compensate said valve actuating means in response to draft loads on said hitching means.
Claim 8
Dependent Claim
61 words
A control mechanism on a tractor adapted for operating a hydraulic valve of a hydraulic weight distribution system as set forth in claim 1 wherein said pair of flexible elements includes a sheathed cable having a sheath guiding a cable, said first of said flexible elements includes the cable, said second of said flexible elements includes the sheath on said cable.
Claim 9
Dependent Claim
61 words
A control mechanism on a tractor adapted for operating a hydraulic valve of a hydraulic weight distribution system as set forth in claim 1 wherein said implement hitch means includes draft members adapted for connection to the implement, a feedback link connected to said draft members adapted for transmitting a feedback signal responsive to draft load to said valve compensating means.
Claim 10
Dependent Claim
64 words
A control mechanism on a tractor adapted for operating a hydraulic valve of a hydraulic weight distribution system as set forth in claim 1 wherein said implement hitching means includes a position control means adapted for positioning said implement, a feedback linkage connecting said implement positioning means to said valve compensating means to thereby feedback a position responsive signal to said valve compensating means.
Claim 11
Dependent Claim
99 words
A control mechanism on a tractor adapted for operating a hydraulic valve of a hydraulic weight distribution system as set forth in claim 1 wherein said valve actuating means includes pivotally mounted valve actuating levers, said valve compensating means includes pivotally mounted valve compensating levers, means connecting said pivotally mounted valve compensating levers with said valve actuating levers, means connecting said draft load sensing means to said valve compensating levers, means connecting said position control sensing means to said valve compensating levers thereby to compensate said valve actuating means in response to draft load signals and implement position signals.
Claim 12
Dependent Claim
127 words
A control mechanism on a tractor adapted for operating a hydraulic valve of a hydraulic weight distribution system as set forth in claim 1 including a first pair of said flexible elements defining a sheathed cable wherein a sheath forms the guiding element and a cable forms the guided element, said implement hitching means including a pair of rock arms pivotally mouNted on said tractor, means connecting said sheath between said rock arms and said valve compensating means, a second pair of said flexible elements defining a second sheathed cable wherein a second sheath forms the guiding element and a second cable forms the guided element, said implement hitching means including draft arms, means connecting said second sheath between said draft arms and said valve compensating means.
Claim 13
Dependent Claim
121 words
A control mechanism on a tracor adapted for operating a hydraulic valve of a hydraulic weight distribution system as set forth in claim 1 including a first pair of said flexible elements wherein a cable defines the guided element and a sheath defines the guiding element, said implement hitching means including a pair of rock arms pivotally mounted on said tractor, means connecting said sheath with said valve compensating means to said rock arms, a second pair of said flexible elements wherein a second cable defines the guided element and a second sheath defines the guiding element, said implement hitching means including a pair of draft arms, means connecting said second sheath with said valve compensating means to said draft arms.
Claim 14
Dependent Claim
163 words
A control mechanism on a tractor adapted for operating a hydraulic valve of a hydraulic weight distribution system as set forth in claim 1 including a first pair of said flexible elements wherein a cable defines the guided element and a sheath defines the guiding element, a pair of rock arms pivotally mounted on said tractor, means connecting said sheath with said valve compensating means to said rock arms, a second pair of flexible elements wherein a second cable defines the guided element and a second sheath defines the guiding element, said implement hitching means including a pair of draft arms, said valve compensating means including an articulated lever having a first link and a second link, means connecting said second sheath with said second link of said articulated lever in said valve compensating means to said lower draft arms, means connecting said second cable between said manual control means and said first link of said articulated lever of said valve compensating means.
Claim 15
Dependent Claim
92 words
A control mechanism on a tractor adapted for operating a hydraulic valve of a hydraulic weight distribution system as set forth in claim 1 wherein said manual control means includes a draft load control lever, a position control lever, a first pair of flexible elements including a sheath and cable, means connecting said cable between said draft load control lever and said valve actuating means, a second pair of flexible elements defining a second sheath and cable, means connecting said second cable between said position control lever and said valve actuating means.
References Cited (Backward Citations)
US2974733A
Cited
US3575241A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |