Patent US3263986A successfully refreshed from Google Patents.
US3263986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shock absorber
Assignee: Bendix Corp
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Filing: 1964-03-02
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Granted: 1966-08-02
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Expires: 1984-03-02
Abstract
No abstract record available.
Inventors
- 👤 Raymond P Tollar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:22
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
215 words
IN A SHOCK ABSORBER HAVING TELESCOPING PORTIONS WITH PROVISIONS FOR A METERING FLUID TO DISSIPATE ENERGY, A MEANS TO PROVIDE SAID SHOCK ABSORBER WITH A HIGH AND LOW ENERGY AIR-SPRING RATE COMPRISING: AN INNER CYLINDER HAVING INNER AND OUTER WALLS; AN OUTER CYLINDER SUPPORTING SAID INNER CYLINDER AND PERMITTING SAID INNER CYLINDER TO TELESCOPE THEREWITHIN WITH PROVISIONS TO AFFIX SAID OUTER CYLINDER TO SURROUNDING VEHICULAR STRUCTURES; A CENTRAL TUBULAR MEMBER SLIDABLY ENGAGING THE INNER WALLS OF SAID INNER CYLINDER, SAID TUBULAR MEMBER HAVING A PERIPHERAL FLANGE IN SLIDING ENGAGEMENT WITH SAID INNER WALLS, WHICH FLANGE SEPARATES A FIRST VARIABLE VOLUME CHAMBER FROM A SECOND VARIABLE VOLUME CHAMBER IN SAID INNER AND OUTER CYLINDERS, SAID INNER TUBULAR MEMBER ALSO HAVING MEANS TO METER A PASSAGE OF HYDRAULIC FLUID BETWEEN SAID FIRST VARIABLE VOLUME CHAMBER AND SAID SECOND VARIABLE VOLUME CHAMBER AS SAID INNER AND OUTER CYLINDERS TELESCOPE, SAID CENTRAL TUBULAR MEMBER FURTHER HAVING DRILLED OPENINGS AT AN END THEREOF OPPOSITE THAT CONTAINING THE PERIPHERAL FLANGE TO PROVIDE COMMUNICATION OF THE INTERIOR OF SAID CENTRAL TUBULAR MEMBER WITH SAID SECOND VARIABLE VOLUME CHAMBER, SAID CENTRAL TUBULAR MEMBERS STILL FURTHER HAVING A STEPPED CONSTRUCTION SUCH THAT SAID TUBULAR MEMBER HAS A LESSER DIAMETER ADJACENT SAID OPENINGS AND A GREATER DIAMETER BELOW SAID OPENING TOWARDS SAID PERIPHERAL FLANGE; AND
Claim 2
Dependent Claim
215 words
IN A SHOCK ABSORBER HAVING TELESCOPING PORTIONS WITH PROVISIONS FOR A METERING FLUID TO DISSIPATE ENERGY, A MEANS TO PROVIDE SAID SHOCK ABSORBER WITH A HIGH AND LOW ENERGY AIR-SPRING RATE COMPRISING: AN INNER CYLINDER HAVING INNER AND OUTER WALLS; AN OUTER CYLINDER SUPPORTING SAID INNER CYLINDER AND PERMITTING SAID INNER CYLINDER TO TELESCOPE THEREWITHIN WITH PROVISIONS TO AFFIX SAID OUTER CYLINDER TO SURROUNDING VEHICULAR STRUCTURES; A CENTRAL TUBULAR MEMBER SLIDABLY ENGAGING THE INNER WALLS OF SAID INNER CYLINDER, SAID TUBULAR MEMBER HAVING A PERIPHERAL FLANGE IN SLIDING ENGAGEMENT WITH SAID INNER WALLS, WHICH FLANGE SEPARATES A FIRST VARIABLE VOLUME CHAMBER FROM A SECOND VARIABLE VOLUME CHAMBER IN SAID INNER AND OUTER CYLINDERS, SAID INNER TUBULAR MEMBER ALSO HAVING MEANS TO METER A PASSAGE OF HYDRAULIC FLUID BETWEEN SAID FIRST VARIABLE VOLUME CHAMBER AND SAID SECOND VARIABLE VOLUME CHAMBER AS SAID INNER AND OUTER CYLINDERS TELESCOPE, SAID CENTRAL TUBULAR MEMBER FURTHER HAVING DRILLED OPENINGS AT AN END THEREOF OPPOSITE THAT CONTAINING THE PERIPHERAL FLANGE TO PROVIDE COMMUNICATION OF THE INTERIOR OF SAID CENTRAL TUBULAR MEMBER WITH SAID SECOND VARIABLE VOLUME CHAMBER, SAID CENTRAL TUBULAR MEMBERS STILL FURTHER HAVING A STEPPED CONSTRUCTION SUCH THAT SAID TUBULAR MEMBER HAS A LESSER DIAMETER ADJACENT SAID OPENINGS AND A GREATER DIAMETER BELOW SAID OPENING TOWARDS SAID PERIPHERAL FLANGE; AND
References Cited (Backward Citations)
US2563518A
Cited
US2197474A
Cited
US2222845A
Cited
GB648931A
Cited
US2724590A
Cited
US3056598A
Cited
US2959410A
Cited
US3083000A
Cited
US3140084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |