US3341165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic leveling seat for tractors and the like
Assignee: Individual
•
Filing: 1965-09-08
•
Granted: 1967-09-12
•
Expires: 1985-09-08
Abstract
No abstract record available.
Inventors
- 👤 Taylor Ora Quinton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:46
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/50; B60N2/501; B60N2/24; B60N2/38; B60N2/502; B60N2/505; B60N2/506; B60N2/507; Y; Y10; Y10T; Y10T137/00; Y10T137/0753; Y10T137/0923
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A SELF-LEVELING SEAT FOR TRACTORS AND THE LIKE COMPRISING A MAIN MOUNTING BRACKET, A SUPPORTING SHAFT ON SAID BRACKET PROJECTING HORIZONTALLY BEYOND ONE SIDE THEREOF, A SEAT STRUCTURE ROTATABLY SUSPENDED FROM SAID SHAFT FOR TILTING MOVEMENT LATERALLY IN EITHER DIRECTION ON THE AXIS OF SAID SHAFT, THE CENTER OF GRAVITY OF SAID SEAT BEING SPACED BELOW THE AXIS OF SAID SHAFT, A CYLINDER-PISTON UNIT EXTENDING TRANSVERSELY OF SAID SHAFT AND INCLUDING A CYLINDER AND SINGLE DOUBLE-ACTING PISTION THEREIN HAVING PISTON ROD EXTENSIONS PROJECTING THROUGH THE ENDS OF SAID CYLINDER, MEANS FORMING A PIVOTAL CONNECTION BETWEEN SAID CYLINDER AND SEAT STRUCTURE, MEANS FORMING ANOTHER PIVOTAL CONNECTION BETWEEN ONE PISTON ROD EXTENSION AND SAID MAIN MOUNTING BRACKET, A CONTROL VALVE CASING RIGIDLY MOUNTED UPON THE SEAT STRUCTURE AND HAVING A PAIR OF PASSAGES, FLEXIBLE HYDRAULIC LINES INTERCONNECTING SAID PAS-
Claim 2
Dependent Claim
137 words
A SELF-LEVELING SEAT FOR TRACTORS AND THE LIKE COMPRISING A MAIN MOUNTING BRACKET, A SUPPORTING SHAFT ON SAID BRACKET PROJECTING HORIZONTALLY BEYOND ONE SIDE THEREOF, A SEAT STRUCTURE ROTATABLY SUSPENDED FROM SAID SHAFT FOR TILTING MOVEMENT LATERALLY IN EITHER DIRECTION ON THE AXIS OF SAID SHAFT, THE CENTER OF GRAVITY OF SAID SEAT BEING SPACED BELOW THE AXIS OF SAID SHAFT, A CYLINDER-PISTON UNIT EXTENDING TRANSVERSELY OF SAID SHAFT AND INCLUDING A CYLINDER AND SINGLE DOUBLE-ACTING PISTION THEREIN HAVING PISTON ROD EXTENSIONS PROJECTING THROUGH THE ENDS OF SAID CYLINDER, MEANS FORMING A PIVOTAL CONNECTION BETWEEN SAID CYLINDER AND SEAT STRUCTURE, MEANS FORMING ANOTHER PIVOTAL CONNECTION BETWEEN ONE PISTON ROD EXTENSION AND SAID MAIN MOUNTING BRACKET, A CONTROL VALVE CASING RIGIDLY MOUNTED UPON THE SEAT STRUCTURE AND HAVING A PAIR OF PASSAGES, FLEXIBLE HYDRAULIC LINES INTERCONNECTING SAID PAS-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |