US3216535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shock absorber of the rod metered type
Assignee: Motors Liquidation Co
•
Filing: 1963-08-19
•
Granted: 1965-11-09
•
Expires: 1983-08-19
Abstract
No abstract record available.
Inventors
- 👤 Harold E Schultze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:31
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/32; F16F9/48; F16F9/49
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
IN A DIRECT-ACTING HYDRAULIC SHOCK ABSORBER, THE COMBINATION OF, CYLINDER MEANS AND PISTON MEANS FORMING A COMPRESSION CHAMBER, AN ELONGATED TUBULAR ELEMENT, A PISTON ELEMENT HAVING A CYLINDRICAL EXTENSION ALIGNED IN TELESCOPING ARRANGEMENT WITH SAID ELONGATED TUBULAR ELEMENT AND AN OUTER PERIPHERAL SURFACE SLIDABLY SUPPORTED IN SEALING ENGAGEMENT WITH THE CYLINDER MEANS OF THE SHOCK ABSORBER FOR FORMING AN AUXILIARY COMPRESSION CHAMBER, AND COACTING MEANS SUPPORTED BY SAID CYLINDRICAL EXTENSION AND SAID TUBULAR ELEMENT FOR PROGRESSIVELY RESTRICTING FLUID FLOW THE COMPRESSION CHAMBER OF THE SHOCK ABSORBER FROM SAID AUXILIARY COMPRESSION CHAMBER DURING THE COMPRESSION STROKE INCLUDING MEANS OPERATIVE DURING THE REBOUND STROKE TO ALLOW SUBSTANTIALLY UNRESTRICTED FLUID FLOW BETWEEN THE COMPRESSION CHAMBER AND SAID AUXILIARY COMPRESSION CHAMBER.
Claim 2
Dependent Claim
117 words
IN A DIRECT-ACTING HYDRAULIC SHOCK ABSORBER, THE COMBINATION OF, CYLINDER MEANS AND PISTON MEANS FORMING A COMPRESSION CHAMBER, AN ELONGATED TUBULAR ELEMENT, A PISTON ELEMENT HAVING A CYLINDRICAL EXTENSION ALIGNED IN TELESCOPING ARRANGEMENT WITH SAID ELONGATED TUBULAR ELEMENT AND AN OUTER PERIPHERAL SURFACE SLIDABLY SUPPORTED IN SEALING ENGAGEMENT WITH THE CYLINDER MEANS OF THE SHOCK ABSORBER FOR FORMING AN AUXILIARY COMPRESSION CHAMBER, AND COACTING MEANS SUPPORTED BY SAID CYLINDRICAL EXTENSION AND SAID TUBULAR ELEMENT FOR PROGRESSIVELY RESTRICTING FLUID FLOW THE COMPRESSION CHAMBER OF THE SHOCK ABSORBER FROM SAID AUXILIARY COMPRESSION CHAMBER DURING THE COMPRESSION STROKE INCLUDING MEANS OPERATIVE DURING THE REBOUND STROKE TO ALLOW SUBSTANTIALLY UNRESTRICTED FLUID FLOW BETWEEN THE COMPRESSION CHAMBER AND SAID AUXILIARY COMPRESSION CHAMBER.
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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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |