Patent US3614931A successfully refreshed from Google Patents.
US3614931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic sway stabilizer
Assignee: Individual
•
Filing: 1969-05-12
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Granted: 1971-10-26
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Expires: 1989-05-12
Abstract
Abstract A SWAY STABILIZER FOR A RAILWAY CAR INCLUDING A SHOCK ABSORBER WHICH EXTENDS BETWEEN THE CAR BODY AND THE SIDE FRAME AT EACH SIDE OF THE CAR TRUCK. A CONDUIT EXTENDS FROM THE UPPER END OF THE CHAMBER OF THE LEFT SHOCK ABSORBER TO THE LOWER END OF THE CHAMBER OF THE RIGHT SHOCK ABSORBER. A SECOND CONDUIT EXTENDS FROM THE LOWER END OF THE LEFT SHOCK ABSORBER CHAMBER TO THE UPPER END OF THE RIGHT SHOCK ABSORBER CHAMBER. THE CROSS SECTIONAL AREA OF THE CONDUIT IS MUCH GREATER THAN THE SUM OF THE AREAS OF THE SEVERAL BY-PASS ORIFICES IN THE PISTON. THE PISTON ROD EXTENDS THROUGH BOTH END MEMBERS OF THE CHAMBER.
Inventors
- 👤 Franklin P Adler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:04
CPC Classifications
B; B61; B61F; B61F5/00; B61F5/02; B61F5/22; B61F5/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |