Patent US3155192A successfully refreshed from Google Patents.
US3155192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing lubricating devices
Assignee: Individual
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Filing: 1962-07-30
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Granted: 1964-11-03
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Expires: 1982-07-30
Abstract
No abstract record available.
Inventors
- 👤 Alec P James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:24
CPC Classifications
B; B65; B65G; B65G45/00; B65G45/02; B65G45/08; F; F16; F16N; F16N27/00; F16N7/00; F16N7/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
FOR PUMPING LUBRICANT TO A MOVING PART OF A MACHINE, A UNIT COMPRISING A ROD ATTACHED AT ONE END TO SAID PART SO THAT THE ROD EXTENDS TRANSVERSELY OF THE DIRECTION OF MOVEMENT OF SAID PART, A PISTON/CYLINDER ASSEMBLY INCLUDING A PISTON AND AN OPEN-ENDED CYLINDER MOUNTED ON THE ROD FOR RELATIVE AXIAL MOVEMENT SO THAT THE PISTON IS WITHDRAWABLE FROM THE OPEN END OF THE CYLINDER TO PROVIDE A SPACE BETWEEN THE PISTON AND THE CYLINDER, AN AXIAL HOLE IN THE ROD TO COMMUNICATE WITH A LUBRICANTCONVEYING PASSAGE IN THE MOVING PART, A RADIAL PORT LEADING INTO THE AXIAL HOLE FROM THE CYLINDER WHEN THE PISTON IS WITHIN THE CYLINDER AND SPRING MEANS URGING THE PISTON INTO THE CYLINDER.
Claim 2
Dependent Claim
120 words
FOR PUMPING LUBRICANT TO A MOVING PART OF A MACHINE, A UNIT COMPRISING A ROD ATTACHED AT ONE END TO SAID PART SO THAT THE ROD EXTENDS TRANSVERSELY OF THE DIRECTION OF MOVEMENT OF SAID PART, A PISTON/CYLINDER ASSEMBLY INCLUDING A PISTON AND AN OPEN-ENDED CYLINDER MOUNTED ON THE ROD FOR RELATIVE AXIAL MOVEMENT SO THAT THE PISTON IS WITHDRAWABLE FROM THE OPEN END OF THE CYLINDER TO PROVIDE A SPACE BETWEEN THE PISTON AND THE CYLINDER, AN AXIAL HOLE IN THE ROD TO COMMUNICATE WITH A LUBRICANTCONVEYING PASSAGE IN THE MOVING PART, A RADIAL PORT LEADING INTO THE AXIAL HOLE FROM THE CYLINDER WHEN THE PISTON IS WITHIN THE CYLINDER AND SPRING MEANS URGING THE PISTON INTO THE CYLINDER.
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) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |