US3218020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient seat mounting
Assignee: Caterpillar Inc
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Filing: 1964-03-16
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Granted: 1965-11-16
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Expires: 1984-03-16
Abstract
No abstract record available.
Inventors
- 👤 Sammy J Rhodes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:17
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/50; B60N2/502; B60N2/506; B60N2/507; B60N2/52; B60N2/525
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
IN A RESILIENT VEHICLE SEAT MOUNTING WHICH INCLUDES A PNEUMATIC CYLINDER AND AN ACCUMULATOR COMMUNICATING THEREWITH FOR CUSHIONING VERTICAL MOVEMENT OF THE SEAT, AND LEVELING VALVE MEANS OPENING TO ADMIT AIR FROM A SOURCE UNDER PRESSURE TO THE CYLINDER UPON DOWNWARD MOVEMENT OF THE SEAT, CLOSING UPON UPWARD MOVEMENT TO A GIVEN LEVEL, AND VENTING PRESSURE FROM THE CYLINDER ABOVE SAID LEVEL, THE IMPROVEMENT WHICH COMPRISES A VALVE CONTROLLING COMMUNICATION BETWEEN THE CYLINDER AND THE ACCUMULATOR, AND MEANS TO CLOSE SAID VALVE AUTOMATICALLY WHEN THE CYLINDER IS VENTED.
Claim 2
Dependent Claim
88 words
IN A RESILIENT VEHICLE SEAT MOUNTING WHICH INCLUDES A PNEUMATIC CYLINDER AND AN ACCUMULATOR COMMUNICATING THEREWITH FOR CUSHIONING VERTICAL MOVEMENT OF THE SEAT, AND LEVELING VALVE MEANS OPENING TO ADMIT AIR FROM A SOURCE UNDER PRESSURE TO THE CYLINDER UPON DOWNWARD MOVEMENT OF THE SEAT, CLOSING UPON UPWARD MOVEMENT TO A GIVEN LEVEL, AND VENTING PRESSURE FROM THE CYLINDER ABOVE SAID LEVEL, THE IMPROVEMENT WHICH COMPRISES A VALVE CONTROLLING COMMUNICATION BETWEEN THE CYLINDER AND THE ACCUMULATOR, AND MEANS TO CLOSE SAID VALVE AUTOMATICALLY WHEN THE CYLINDER IS VENTED.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |