US3146894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction shock absorbing mechanisms
Assignee: W H MINER Inc
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Filing: 1962-10-22
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Granted: 1964-09-01
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Expires: 1982-10-22
Abstract
No abstract record available.
Inventors
- 👤 Robert W Andersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:49
CPC Classifications
B; B61; B61G; B61G9/00; B61G9/04; B61G9/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
209 words
FRICTION SHOCK ABSORBING MECHANISM COMPRISING, IN COMBINATION, A GENERALLY CYLINDRICAL CASING HAVING A CLOSED END AND AN OPEN END, A SERIES OF CIRCUMFERENTIALLY SPACED FRICTION SHOES SLIDINGLY TELESCOPED IN THE OPEN OUTER END OF SAID CASING, A CENTRAL WEDGE DISPOSED IN AN OUTWARDLY OPENING POCKET DEFINED BY SAID SERIES OF FRICTION SHOES, A CENTRALLY LOCATED RECESS FORMED IN THE OUTER SURFACE OF SAID WEDGE AND DEFINING A PERIPHERAL RIM AT THE OUTER END OF SAID WEDGE, A SERIES OF CIRCUMFERENTIALLY SPACED, INWARDLY FACING SHOULDERS FORMED ON THE INNER SURFACE OF SAID CASING INWARDLY OF THE OPEN OUTER END THEREOF, SPRING MEANS IN SAID CASING SEATED BETWEEN SAID CLOSED END THEREOF AND INNER SURFACE PORTIONS OF SAID FRICTION SHOES AND NORMALLY URGING SAID SHOES AND SAID WEDGE OUTWARDLY OF SAID CASING, AND MEANS FOR RETAINING SAID SHOES AND SAID WEDGE IN ASSEMBLED RELATIONSHIP IN SAID CASING PRIMARILY DURING ASSEMBLY AND SHIPMENT OF THE FRICTION SHOCK ABSORBING MECHANISM PRIOR TO INSTALLATION THEREOF IN A RAILWAY DRAFT RIGGING, SAID RETAINING MEANS BEING CHARACTERIZED BY A SERIES OF ELONGATED STRAP MEMBERS HAVING OUTER END PORTIONS ENGAGED OVER SAID OUTER PERIPHERAL RIM OF SAID WEDGE AND INNER END PORTIONS DISPOSED IN LATCHING ENGAGEMENT WITH SAID SHOULDERS FORMED ON THE INNER SURFACE OF SAID CASING.
Claim 2
Dependent Claim
209 words
FRICTION SHOCK ABSORBING MECHANISM COMPRISING, IN COMBINATION, A GENERALLY CYLINDRICAL CASING HAVING A CLOSED END AND AN OPEN END, A SERIES OF CIRCUMFERENTIALLY SPACED FRICTION SHOES SLIDINGLY TELESCOPED IN THE OPEN OUTER END OF SAID CASING, A CENTRAL WEDGE DISPOSED IN AN OUTWARDLY OPENING POCKET DEFINED BY SAID SERIES OF FRICTION SHOES, A CENTRALLY LOCATED RECESS FORMED IN THE OUTER SURFACE OF SAID WEDGE AND DEFINING A PERIPHERAL RIM AT THE OUTER END OF SAID WEDGE, A SERIES OF CIRCUMFERENTIALLY SPACED, INWARDLY FACING SHOULDERS FORMED ON THE INNER SURFACE OF SAID CASING INWARDLY OF THE OPEN OUTER END THEREOF, SPRING MEANS IN SAID CASING SEATED BETWEEN SAID CLOSED END THEREOF AND INNER SURFACE PORTIONS OF SAID FRICTION SHOES AND NORMALLY URGING SAID SHOES AND SAID WEDGE OUTWARDLY OF SAID CASING, AND MEANS FOR RETAINING SAID SHOES AND SAID WEDGE IN ASSEMBLED RELATIONSHIP IN SAID CASING PRIMARILY DURING ASSEMBLY AND SHIPMENT OF THE FRICTION SHOCK ABSORBING MECHANISM PRIOR TO INSTALLATION THEREOF IN A RAILWAY DRAFT RIGGING, SAID RETAINING MEANS BEING CHARACTERIZED BY A SERIES OF ELONGATED STRAP MEMBERS HAVING OUTER END PORTIONS ENGAGED OVER SAID OUTER PERIPHERAL RIM OF SAID WEDGE AND INNER END PORTIONS DISPOSED IN LATCHING ENGAGEMENT WITH SAID SHOULDERS FORMED ON THE INNER SURFACE OF SAID CASING.
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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |