Patent US3198474A successfully refreshed from Google Patents.
US3198474A
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US
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Assignee: Massey Ferguson Inc
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Filing: 1963-08-01
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Granted: 1965-08-03
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Expires: 1983-08-01
Abstract
No abstract record available.
Inventors
- 👤 Robert M Doll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:03
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/50; B60N2/501; B60N2/02; B60N2/04; B60N2/045; B60N2/502; B60N2/505; B60N2/506; B60N2/507; B60N2/52; B60N2/525
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A SEAT ASSEMBLY COMPRISING A BASE MEMBER MOUNTED IN A FIXED POSITION RELATIVE TO A SEAT SUPPORT MEANS, SEAT SUPPORT MEANS, FLUID PPRESSURE OPERATED MOTOR MEANS OPERATIVELY CONNECTED BETWEEN SAID BASE MEMBER AND SAID SEAT SUPPORT MEANS, A SOURCE OF SUBSTANTIALLY INCOMPRESSIBLE FLUID UNDER PRESSURE, CIRCUIT MEANS COMMUNICATING SAID SOURCE TO SAID MOTOR MEANS AND INCLUDING SELECTOR VALVE MEANS SELECTIVELY CONTROLLING THE SUPPLY AND EXHAUST OF FLUID TO AND FROM SAID MOTOR MEANS TO SELECTIVELY ADJUST THE POSITION OF SAID SEAT SUPPORT MEANS RELATIVE TO SAID BASE MEMBER, YIELDABLE MEANS RESPONSIVE TO VARIATIONS IN THE PRESSURE OF THE FLUID IN SAID MOTOR MEANS IN RESPONSE TO VARIATIONS IN THE LOAD IMPOSED TO SAID SEAT SUPPORT MEANS TO CUSHION MOVEMENT OF THE LATTER RELATIVE TO SAID BASE MEMBER, AND MEANS FOR VARYING THE STATIC PRESSURE EXERTED BY SAID YIELDABLE MEANS WITHOUT AFFECTING THE STATIC UNLOAD HEIGHT OF SAID SEAT SUPPORT MEANS.
Claim 2
Dependent Claim
150 words
A SEAT ASSEMBLY COMPRISING A BASE MEMBER MOUNTED IN A FIXED POSITION RELATIVE TO A SEAT SUPPORT MEANS, SEAT SUPPORT MEANS, FLUID PPRESSURE OPERATED MOTOR MEANS OPERATIVELY CONNECTED BETWEEN SAID BASE MEMBER AND SAID SEAT SUPPORT MEANS, A SOURCE OF SUBSTANTIALLY INCOMPRESSIBLE FLUID UNDER PRESSURE, CIRCUIT MEANS COMMUNICATING SAID SOURCE TO SAID MOTOR MEANS AND INCLUDING SELECTOR VALVE MEANS SELECTIVELY CONTROLLING THE SUPPLY AND EXHAUST OF FLUID TO AND FROM SAID MOTOR MEANS TO SELECTIVELY ADJUST THE POSITION OF SAID SEAT SUPPORT MEANS RELATIVE TO SAID BASE MEMBER, YIELDABLE MEANS RESPONSIVE TO VARIATIONS IN THE PRESSURE OF THE FLUID IN SAID MOTOR MEANS IN RESPONSE TO VARIATIONS IN THE LOAD IMPOSED TO SAID SEAT SUPPORT MEANS TO CUSHION MOVEMENT OF THE LATTER RELATIVE TO SAID BASE MEMBER, AND MEANS FOR VARYING THE STATIC PRESSURE EXERTED BY SAID YIELDABLE MEANS WITHOUT AFFECTING THE STATIC UNLOAD HEIGHT OF SAID SEAT SUPPORT MEANS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |