Patent US3113767A successfully refreshed from Google Patents.
US3113767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydro-mechanical impact absorber
Assignee: ThyssenKrupp Budd Co
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Filing: 1961-05-02
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Granted: 1963-12-10
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Expires: 1981-05-02
Abstract
No abstract record available.
Inventors
- 👤 Charles C Halberstadt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:05
CPC Classifications
B; B23; B23Q; B23Q16/00; B23Q16/008; F; F16; F16F; F16F5/00; F16F9/00; F16F9/32; F16F9/48; F16F9/49
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A MULTIPLE PISTON DAMPING CYLINDER COMPRISING IN COMBINATION A CYLINDER HOUSING HAVING A HOLLOW SPACE AT ONE END THEREIN FORMING A RESERVOIR FOR AN INCOMPRESSIBLE FLUID, A FIRST PISTON MOVABLE IN SAID HOUSING FOR EXERTING A FORCE ON SAID FLUID IN SAID RESERVOIR BY MOVEMENT TOWARD SAID RESERVOIR AT SAID END OF SAID HOUSING, A SECOND MOVABLE SPRING LOADED PISTON MOUNTED IN CONCENTRIC ENGAGEMENT WITH SAID FIRST PISTON IN SAID HOUSING FOR RELIEVING THE INITIAL SHOCK OF SAID FORCE ON SAID FLUID BY MOVEMENT AWAY FROM SAID RESERVOIR AT SAID END OF SAID HOUSING, AND A CONSTANT PRESSURE PNEUMATICALLY CHARGED STORAGE DEVICE CONNECTED TO SAID RESERVOIR FOR RECEIVING SAID INCOMPRESSIBLE FLUID FORCED OUT OF SAID RESERVOIR BY SAID FIRST AND SAID SECOND PISTONS.
Claim 2
Dependent Claim
123 words
A MULTIPLE PISTON DAMPING CYLINDER COMPRISING IN COMBINATION A CYLINDER HOUSING HAVING A HOLLOW SPACE AT ONE END THEREIN FORMING A RESERVOIR FOR AN INCOMPRESSIBLE FLUID, A FIRST PISTON MOVABLE IN SAID HOUSING FOR EXERTING A FORCE ON SAID FLUID IN SAID RESERVOIR BY MOVEMENT TOWARD SAID RESERVOIR AT SAID END OF SAID HOUSING, A SECOND MOVABLE SPRING LOADED PISTON MOUNTED IN CONCENTRIC ENGAGEMENT WITH SAID FIRST PISTON IN SAID HOUSING FOR RELIEVING THE INITIAL SHOCK OF SAID FORCE ON SAID FLUID BY MOVEMENT AWAY FROM SAID RESERVOIR AT SAID END OF SAID HOUSING, AND A CONSTANT PRESSURE PNEUMATICALLY CHARGED STORAGE DEVICE CONNECTED TO SAID RESERVOIR FOR RECEIVING SAID INCOMPRESSIBLE FLUID FORCED OUT OF SAID RESERVOIR BY SAID FIRST AND SAID SECOND PISTONS.
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) | 1966-12-09 | 1967-06-10 | 1967-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-09 | 1971-06-10 | 1971-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-09 | 1975-06-10 | 1975-12-10 | $7700.00 | Window Closed / Lapsed |