Patent US3155253A successfully refreshed from Google Patents.
US3155253A
Expired / Lapsed
US
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Control system for tractor mounted apparatus
Assignee: Individual
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Filing: 1963-06-21
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Granted: 1964-11-03
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Expires: 1983-06-21
Abstract
No abstract record available.
Inventors
- 👤 John S Pilch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:46
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/42; E02F3/43; E02F3/431; E02F3/432
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
IN A DEVICE OF THE CHARACTER DESCRIBED, A PAIR OF ARMS ADAPTED TO BE PIVOTALLY CONNECTED ADJACENT ONE END TO A VEHICLE, A BUCKET PIVOTALLY CONNECTED TO SAID ARMS ADJACENT THE FREE ENDS THEREOF, HYDRAULIC MEANS FOR RAISING AND LOWERING SAID ARMS AND BUCKET RELATIVE TO SAID VEHICLE, BUCKET PIVOTING MEANS INCLUDING HYDRAULIC MEANS OPERATIVELY CONNECTED TO THE BUCKET FOR PIVOTING SAID BUCKET RELATIVE TO SAID ARMS, MEANS FOR CONTROLLING BOTH OF SAID HYDRAULIC MEANS, A VALVE MEMBER ADAPTED TO BE AUTOMATICALLY ACTUATED WHEREBY SAID BUCKET WILL BE AUTOMATICALLY PIVOTED TO POSITION ITS CUTTING EDGE IN LOADING POSITION DURING LOWERING OF SAID ARMS AT SUBSTANTIALLY ANY LOADING POSITION BETWEEN DUMPING POSITION AND GROUND, SAID VALVE MEMBER BEING OPERATIVELY CONNECTED TO SAID BUCKET PIVOTING MEANS AND MEANS OPERATIVELY CONNECTED TO SAID BUCKET FOR ACTUATING SAID VALVE MEMBER SUCH AS TO CAUSE SAID BUCKET TO BE AUTOMATICALLY POSITIONED IN PROPER LOADING POSITION DURING THE LOWERING OF SAID ARMS.
Claim 2
Dependent Claim
156 words
IN A DEVICE OF THE CHARACTER DESCRIBED, A PAIR OF ARMS ADAPTED TO BE PIVOTALLY CONNECTED ADJACENT ONE END TO A VEHICLE, A BUCKET PIVOTALLY CONNECTED TO SAID ARMS ADJACENT THE FREE ENDS THEREOF, HYDRAULIC MEANS FOR RAISING AND LOWERING SAID ARMS AND BUCKET RELATIVE TO SAID VEHICLE, BUCKET PIVOTING MEANS INCLUDING HYDRAULIC MEANS OPERATIVELY CONNECTED TO THE BUCKET FOR PIVOTING SAID BUCKET RELATIVE TO SAID ARMS, MEANS FOR CONTROLLING BOTH OF SAID HYDRAULIC MEANS, A VALVE MEMBER ADAPTED TO BE AUTOMATICALLY ACTUATED WHEREBY SAID BUCKET WILL BE AUTOMATICALLY PIVOTED TO POSITION ITS CUTTING EDGE IN LOADING POSITION DURING LOWERING OF SAID ARMS AT SUBSTANTIALLY ANY LOADING POSITION BETWEEN DUMPING POSITION AND GROUND, SAID VALVE MEMBER BEING OPERATIVELY CONNECTED TO SAID BUCKET PIVOTING MEANS AND MEANS OPERATIVELY CONNECTED TO SAID BUCKET FOR ACTUATING SAID VALVE MEMBER SUCH AS TO CAUSE SAID BUCKET TO BE AUTOMATICALLY POSITIONED IN PROPER LOADING POSITION DURING THE LOWERING OF SAID ARMS.
References Cited (Backward Citations)
FR1068273A
Cited
US2883077A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |