US3343686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boom-type implement
Assignee: Deere and Co
•
Filing: 1966-03-09
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Granted: 1967-09-26
•
Expires: 1986-03-09
Abstract
No abstract record available.
Inventors
- 👤 Bjerkan Arthur Jerome
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:17
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/38; E02F3/382; E02F3/384
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
208 words
ON A BOOM-TYPE IMPLEMENT HAVING A MAIN SUPPORT AND A BOOM SUPPORT INTERCONNECTED FOR RELATIVE MOVEMENT ABOUT AN UPRIGHT AXIS, THE IMPROVEMENT RESIDING IN: AT LEAST THREE ANGULARLY SPACED PIVOTAL CONNECTION RADIALLY SPACED FROM THE AXIS WITH TWO OUTER CONNECTIONS BEING ON OPPOSITE SIDES OF THE UPRIGHT AXIS AND ON OPPOSITE SIDES OF THE THIRD PIVOTAL CONNECTION; EXTENSIBLE AND RETRACTABLE HYDRAULIC UNITS CARRIED AT ONE OF THEIR ENDS ON THE MAIN SUPPORT AND CONNECTED AT THEIR OTHER ENDS TO THE RESPECTIVE PIVOTAL CONNECTIONS WITH EACH OF THE HYDRAULIC UNITS BEING CAPABLE OF ANGULARLY MOVING THE BOOM SUPPORT TOWARD AND AWAY FROM A POSITION IN WHICH THE RADIUS BETWEEN THE RESPECTIVE PIVOTAL CONNECTION AND UPRIGHT AXIS IS CLOSE TO ALIGNMENT WITH THE AXIS OF THE RESPECTIVE HYDRAULIC UNIT AND THE EFFECTIVE LEVER ARM ON THE RESPECTIVE RADIUS IS REDUCED AS IT APPROACHES ALIGNMENT AND IS ENLARGED AS IT REGRESSES FROM ALIGNMENT, AND WHEREBY THE PIVOTAL CONNECTIONS ARE SO DISPOSED IN RELATION TO THEIR RESPECTIVE HYDRAULIC UNITS THAT THE EFFECTIVE LEVER ARMS OF THE TWO PIVOTAL CONNECTIONS IN RELATION TO THEIR RESPECTIVE HYDRAULIC UNITS INCREASE AND DECREASE SUBSTANTIALLY IN UNISON AND IN REVERSE ORDER TO THE EFFECTIVE LEVER ARM OF THE THIRD PIVOTAL CONNECTION IN RESPECT TO ITS HYDRAULIC UNIT.
Claim 2
Dependent Claim
208 words
ON A BOOM-TYPE IMPLEMENT HAVING A MAIN SUPPORT AND A BOOM SUPPORT INTERCONNECTED FOR RELATIVE MOVEMENT ABOUT AN UPRIGHT AXIS, THE IMPROVEMENT RESIDING IN: AT LEAST THREE ANGULARLY SPACED PIVOTAL CONNECTION RADIALLY SPACED FROM THE AXIS WITH TWO OUTER CONNECTIONS BEING ON OPPOSITE SIDES OF THE UPRIGHT AXIS AND ON OPPOSITE SIDES OF THE THIRD PIVOTAL CONNECTION; EXTENSIBLE AND RETRACTABLE HYDRAULIC UNITS CARRIED AT ONE OF THEIR ENDS ON THE MAIN SUPPORT AND CONNECTED AT THEIR OTHER ENDS TO THE RESPECTIVE PIVOTAL CONNECTIONS WITH EACH OF THE HYDRAULIC UNITS BEING CAPABLE OF ANGULARLY MOVING THE BOOM SUPPORT TOWARD AND AWAY FROM A POSITION IN WHICH THE RADIUS BETWEEN THE RESPECTIVE PIVOTAL CONNECTION AND UPRIGHT AXIS IS CLOSE TO ALIGNMENT WITH THE AXIS OF THE RESPECTIVE HYDRAULIC UNIT AND THE EFFECTIVE LEVER ARM ON THE RESPECTIVE RADIUS IS REDUCED AS IT APPROACHES ALIGNMENT AND IS ENLARGED AS IT REGRESSES FROM ALIGNMENT, AND WHEREBY THE PIVOTAL CONNECTIONS ARE SO DISPOSED IN RELATION TO THEIR RESPECTIVE HYDRAULIC UNITS THAT THE EFFECTIVE LEVER ARMS OF THE TWO PIVOTAL CONNECTIONS IN RELATION TO THEIR RESPECTIVE HYDRAULIC UNITS INCREASE AND DECREASE SUBSTANTIALLY IN UNISON AND IN REVERSE ORDER TO THE EFFECTIVE LEVER ARM OF THE THIRD PIVOTAL CONNECTION IN RESPECT TO ITS HYDRAULIC UNIT.
References Cited (Backward Citations)
US2768759A
Cited
US3047171A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |