US3412869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cushioning assembly
Assignee: W H MINER Inc
•
Filing: 1966-11-21
•
Granted: 1968-11-26
•
Expires: 1986-11-21
Abstract
No abstract record available.
Inventors
- 👤 William D Wallace
- 👤 Robert L Carlson
- 👤 Giles A Kendall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:56
CPC Classifications
B; B61; B61G; B61G9/00; B61G9/04; B61G9/08; F; F16; F16F; F16F9/00; F16F9/30; F16F9/303; F16F2224/00; F16F2224/02; F16F2224/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
DAMPED SPRING MEANS COMPRISING AN ELONGATED CASING SECTION WITH A CHAMBER THEREIN, A PISTON ROD EXTENDING INTO SAID CHAMBER AT ONE END THEREOF, MEANS DISPOSED ONE END OF SAID CHAMBER FOR SEALING SAME, A PISTON ON SAID PISTON ROD WITHIN SAID CHAMBER AND PRESENTING AXIAL ORIFICE MEANS, A PISTON UNIT SLIDABLE IN SAID CASING SECTION AT THE OTHER END OF SAID CHAMBER, AND A COMPRESSIBLE SOLID FILLING SAID CHAMBER OR PROVIDING A DAMPING AND SPRING FORCE ON SAID PISTON AS SAID PISTON ROD MOVES INTO SAID CHAMBER AND REDUCES THE VOLUME OF SAID SOLID AND ON SAID PISTON UNIT AS THE LATTER MOVES INTO SAID CHAMBER AND REDUCES THE VOLUME OF SAID SOLID.
Claim 2
Dependent Claim
113 words
DAMPED SPRING MEANS COMPRISING AN ELONGATED CASING SECTION WITH A CHAMBER THEREIN, A PISTON ROD EXTENDING INTO SAID CHAMBER AT ONE END THEREOF, MEANS DISPOSED ONE END OF SAID CHAMBER FOR SEALING SAME, A PISTON ON SAID PISTON ROD WITHIN SAID CHAMBER AND PRESENTING AXIAL ORIFICE MEANS, A PISTON UNIT SLIDABLE IN SAID CASING SECTION AT THE OTHER END OF SAID CHAMBER, AND A COMPRESSIBLE SOLID FILLING SAID CHAMBER OR PROVIDING A DAMPING AND SPRING FORCE ON SAID PISTON AS SAID PISTON ROD MOVES INTO SAID CHAMBER AND REDUCES THE VOLUME OF SAID SOLID AND ON SAID PISTON UNIT AS THE LATTER MOVES INTO SAID CHAMBER AND REDUCES THE VOLUME OF SAID SOLID.
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) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |