US3123990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubrication arrangement for tele-
Assignee: —
•
Filing: —
•
Granted: 1964-03-10
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Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:33
CPC Classifications
F; F16; F16C; F16C29/00; F16C29/08; F16C3/00; F16C3/02; F16C3/03; F16D; F16D3/00; F16D3/02; F16D3/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
152 words
A MECHANISM COMPRISING A CYLINDER MEMBER HAVING A CLOSED END, A PLUNGER MEMBER INCLUDING A PORTION PROJECTING INTO THE OUTER END OF SAID CYLINDER MEMBER AND SLIDABLY RECEIVED THEREIN, A SLEEVE MEMBER MOUNTED ON SAID PLUNGER MEMBER, SAID SLEEVE MEMBER SURROUNDING AT LEAST A PORTION OF SAID CYLINDER MEMBER AND BEING SPACED THEREFROM, A FIRST AND A SECOND SEAL DISPOSED IN AXIAL SPACED RELATIONSHIP AND ENGAGING SAID SLEEVE MEMBER AND SAID CYLINDER MEMBER TO PROVIDE A LUBRICANT RETAINING CHAMBER WITHIN SAID SLEEVE MEMBER, ACCESS MEANS COMMUNICATING THE INNER END VOLUME OF SAID CYLINDER MEMBER AND SAID LUBRICANT RETAINING CHAMBER, A THIRD SEAL ENGAGING SAID CYLINDER MEMBER AND SAID PLUNGER MEMBER TO PREVENT THE ESCAPE OF LUBRICANT THEREBETWEEN, AND AIR ESCAPE MEANS CARRIED BY ONE OF SAID MEMBERS AND BEING SEALED FROM SAID ANNULAR LUBRICANT RETAINING CHAMBER AND THE INNER END VOLUME OF SAID CYLINDER MEMBER BY AT LEAST ONE OF SAID SEALS.
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) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |