US3168201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impact absorbing apparatus
Assignee: Keystone Industries Inc
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Filing: 1964-09-10
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Granted: 1965-02-02
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Expires: 1984-09-10
Abstract
No abstract record available.
Inventors
- 👤 James T Smith
- 👤 Chierici Osvaldo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:35
CPC Classifications
B; B61; B61D; B61D45/00; B61D45/008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
IN AN IMPACT ABSORBING APPARATUS FOR INTERPOSITION BETWEEN THE DRAFT GEAR AND THE LADING IN A RAILWAY CAR OF THE TYPE HAVING A BUFF AND DRAFT CENTER SILL AND A LADING SUPPORTING FRAME MOUNTED FOR MOVEMENT RELATIVE TO EACH OTHER, THE APPARATUS HAVING A PAIR OF HEADS NORMALLY ABUTTED AGAINST LUGS CARRIED ON THE CENTER SILL AND FORCE TRANSMITTING STOPS CARRIED ON THE LADING SUPPORTING FRAME, AND A SPRING URING THE HEADS TOWARD NORMAL POSITION, THE IMPROVEMENT COMPRISING, A FLUID RESERVOIR PIVOTALLY MOUNTED ON THE UNDERFRAME, A CYLINDER MOUNTED WITHIN SAID RESERVOIR SO THAT A CLEAR SPACE IS PROVIDED BETWEEN THE EXTERIOR WALL OF THE CYLINDER AND THE INTERIOR WALL OF THE RESERVOIR, A PLURALITY OF FLUID FLOW RESTRICTING ORIFICES IN THE WALL OF THE CYLINDER COMMUNICATING WITH SAID RESERVOIR AND SPACED LONGITUDINALLY OF THE CYLINDER, A PISTON SLIDABLE IN SAID CYLINDER, A PISTON ROD CONNECTED TO SAID PISTON AND PROJECTING FROM SAID CYLINDER AND SAID RESERVOIR, AND MEANS PIVOTALLY CONNECTING THE OUTER END OF SAID PISTON ROD TO THE CENTER SILL.
Claim 2
Dependent Claim
172 words
IN AN IMPACT ABSORBING APPARATUS FOR INTERPOSITION BETWEEN THE DRAFT GEAR AND THE LADING IN A RAILWAY CAR OF THE TYPE HAVING A BUFF AND DRAFT CENTER SILL AND A LADING SUPPORTING FRAME MOUNTED FOR MOVEMENT RELATIVE TO EACH OTHER, THE APPARATUS HAVING A PAIR OF HEADS NORMALLY ABUTTED AGAINST LUGS CARRIED ON THE CENTER SILL AND FORCE TRANSMITTING STOPS CARRIED ON THE LADING SUPPORTING FRAME, AND A SPRING URING THE HEADS TOWARD NORMAL POSITION, THE IMPROVEMENT COMPRISING, A FLUID RESERVOIR PIVOTALLY MOUNTED ON THE UNDERFRAME, A CYLINDER MOUNTED WITHIN SAID RESERVOIR SO THAT A CLEAR SPACE IS PROVIDED BETWEEN THE EXTERIOR WALL OF THE CYLINDER AND THE INTERIOR WALL OF THE RESERVOIR, A PLURALITY OF FLUID FLOW RESTRICTING ORIFICES IN THE WALL OF THE CYLINDER COMMUNICATING WITH SAID RESERVOIR AND SPACED LONGITUDINALLY OF THE CYLINDER, A PISTON SLIDABLE IN SAID CYLINDER, A PISTON ROD CONNECTED TO SAID PISTON AND PROJECTING FROM SAID CYLINDER AND SAID RESERVOIR, AND MEANS PIVOTALLY CONNECTING THE OUTER END OF SAID PISTON ROD TO THE CENTER SILL.
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) | 1968-02-02 | 1968-08-03 | 1969-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-02 | 1972-08-03 | 1973-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-02 | 1976-08-03 | 1977-02-02 | $7700.00 | Window Closed / Lapsed |