US3127958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shock absorber with improved relief valve structure
Assignee: Ford Motor Co
•
Filing: 1961-06-30
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Granted: 1964-04-07
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Expires: 1981-06-30
Abstract
No abstract record available.
Inventors
- 👤 Henry T Szostak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:21
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/32; F16F9/50; F16F9/504; Y; Y10; Y10T; Y10T137/00; Y10T137/0753; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7908; Y10T137/7909; Y10T137/7913; Y10T137/7915; Y10T137/7918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
IN A HYDRAULIC SHOCK ABSORBER HAVING SPRUNG AND UNSPRUNG COMPONENTS, A PRESSURE TUBE, A VALVED PISTON RECIPROCABLE WITHIN SAID TUBE AND DIVIDING THE INTERIOR OF SAID TUBE INTO COMPRESSION AND REBOUND PRESSURE TUBE, VALVE MEANS CLOSING ONE END OF SAID PRESSURE TUBE AND PROVIDING CONTROLLED COMMUNICATION BETWEEN ONE OF SAID PRESSURE CHAMBERS AND THE INTERIOR OF SAID RESERVOIR TUBE, EXCLUSIVE PASSAGE MEANS EXTERIOR OF SAID PRESSURE TUBE INTERCONNECTING SAID PRESSURE CHAMBERS, AN INERTIA SENSITIVE VALVE DEVICE CONTROLLING FLUID FLOW THROUGH SAID PASSAGE MEANS, SAID VALVE DEVICE BEING SPRING PRESSED TO A NORMALLY CLOSED POSITION BUT ADAPTED TO PERMIT FLUID FLOW BY MOVING TO AN OPEN POSITION IN RESPONSE TO A PREDETERMINED MINIMUM ACCELERATION RATE OF ONE OF SAID COMPONENTS.
Claim 2
Dependent Claim
119 words
IN A HYDRAULIC SHOCK ABSORBER HAVING SPRUNG AND UNSPRUNG COMPONENTS, A PRESSURE TUBE, A VALVED PISTON RECIPROCABLE WITHIN SAID TUBE AND DIVIDING THE INTERIOR OF SAID TUBE INTO COMPRESSION AND REBOUND PRESSURE TUBE, VALVE MEANS CLOSING ONE END OF SAID PRESSURE TUBE AND PROVIDING CONTROLLED COMMUNICATION BETWEEN ONE OF SAID PRESSURE CHAMBERS AND THE INTERIOR OF SAID RESERVOIR TUBE, EXCLUSIVE PASSAGE MEANS EXTERIOR OF SAID PRESSURE TUBE INTERCONNECTING SAID PRESSURE CHAMBERS, AN INERTIA SENSITIVE VALVE DEVICE CONTROLLING FLUID FLOW THROUGH SAID PASSAGE MEANS, SAID VALVE DEVICE BEING SPRING PRESSED TO A NORMALLY CLOSED POSITION BUT ADAPTED TO PERMIT FLUID FLOW BY MOVING TO AN OPEN POSITION IN RESPONSE TO A PREDETERMINED MINIMUM ACCELERATION RATE OF ONE OF SAID COMPONENTS.
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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) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |