Patent US3363893A successfully refreshed from Google Patents.
US3363893A
Expired / Lapsed
US
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Vehicle suspension device
Assignee: Girling Ltd
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Filing: 1966-01-25
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Granted: 1968-01-16
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Expires: 1986-01-25
Abstract
No abstract record available.
Inventors
- 👤 Goddard Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:37
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/06; F16F9/08; F16F9/084
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A SUSPENSION DEVICE COMPRISING A TELESCOPIC DAMPER HAVING A CYLINDER AND A PISTON ROD EXTENDING THEREFROM, TWO TELESCOPIC MEMBERS CARRIED, RESPECTIVELY, BY SAID CYLINDER AND SAID PISTON ROD, SEALING MEANS BETWEEN SAID MEMBERS TO FORM A VARIABLE VOLUME CHAMBER, SAID SEALING MEANS BEING ARRANGED TO WITHSTAND EXTERNAL ATMOSPHERIC PRESSURE WHEN THE PRESSURE WITHIN SAID CHAMBER IS SUB-ATMOSPHERIC, A SOURCE OF SUB-ATMOSPHERIC PRESSURE, AND CONNECTION MEANS BETWEEN SAID CHAMBER AND SAID SOURCE THROUGH WHICH AIR CAN BE WITHDRAWN FROM SAID CHAMBER TO REDUCE THE PRESSURE WITHIN SAID CHAMBER TO A SUB-ATMOSPHERIC CONDITION.
Claim 2
Dependent Claim
91 words
A SUSPENSION DEVICE COMPRISING A TELESCOPIC DAMPER HAVING A CYLINDER AND A PISTON ROD EXTENDING THEREFROM, TWO TELESCOPIC MEMBERS CARRIED, RESPECTIVELY, BY SAID CYLINDER AND SAID PISTON ROD, SEALING MEANS BETWEEN SAID MEMBERS TO FORM A VARIABLE VOLUME CHAMBER, SAID SEALING MEANS BEING ARRANGED TO WITHSTAND EXTERNAL ATMOSPHERIC PRESSURE WHEN THE PRESSURE WITHIN SAID CHAMBER IS SUB-ATMOSPHERIC, A SOURCE OF SUB-ATMOSPHERIC PRESSURE, AND CONNECTION MEANS BETWEEN SAID CHAMBER AND SAID SOURCE THROUGH WHICH AIR CAN BE WITHDRAWN FROM SAID CHAMBER TO REDUCE THE PRESSURE WITHIN SAID CHAMBER TO A SUB-ATMOSPHERIC CONDITION.
References Cited (Backward Citations)
US3037763A
Cited
US3116918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |