US3131977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft bearings
Assignee: Individual
•
Filing: 1961-01-31
•
Granted: 1964-05-05
•
Expires: 1981-01-31
Abstract
No abstract record available.
Inventors
- 👤 Wirtz Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:48
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/06; F16C33/10; F16C33/102
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A PLAIN BEARING COMPRISING AN OUTER GENERALLY CYLINDRICAL METAL BUSH HAVING A PLURALITY OF CIRCUMFERENTIALLY DISPOSED, LOGITUDINALLY EXTENDING CORRUGATIONS THEREIN, SAID CORRUGATIONS TERMINATING INWARDLY OF EACH END OF SAID METALLIC BUSH AND FORMING POCKET ADAPTED TO CONTAIN A SEMI-SOLID LUBRICANT, PORTIONS OF SAID CORRUGATIONS DEFINING OPENINGS THEREIN FOR THE PASSAGE OF THE SEMI-SOLID LUBRICANT TO THE INTERIOR THEREOF, AND AN INNER LUBRICANT TRANSMITTING BUSH OF SYNTHETIC MATERIAL HAVING AN INNER BEARING SURFACE AND BEING IN ENGAGEMENT OVER A MAJOR PORTION OF ITS CIRCUMFERENCE WITH SAID OUTER METALLIC BUSH, MEANS ON SAID INNER BUSH IN ENGAGEMENT WITH SAID OUTER METAL BUSH TO PREVENT RELATIVE AXIAL MOVEMENT BETWEEN THE SAME WHEN THE BEARING IS INSERTED IN A PEDESTAL.
Claim 2
Dependent Claim
116 words
A PLAIN BEARING COMPRISING AN OUTER GENERALLY CYLINDRICAL METAL BUSH HAVING A PLURALITY OF CIRCUMFERENTIALLY DISPOSED, LOGITUDINALLY EXTENDING CORRUGATIONS THEREIN, SAID CORRUGATIONS TERMINATING INWARDLY OF EACH END OF SAID METALLIC BUSH AND FORMING POCKET ADAPTED TO CONTAIN A SEMI-SOLID LUBRICANT, PORTIONS OF SAID CORRUGATIONS DEFINING OPENINGS THEREIN FOR THE PASSAGE OF THE SEMI-SOLID LUBRICANT TO THE INTERIOR THEREOF, AND AN INNER LUBRICANT TRANSMITTING BUSH OF SYNTHETIC MATERIAL HAVING AN INNER BEARING SURFACE AND BEING IN ENGAGEMENT OVER A MAJOR PORTION OF ITS CIRCUMFERENCE WITH SAID OUTER METALLIC BUSH, MEANS ON SAID INNER BUSH IN ENGAGEMENT WITH SAID OUTER METAL BUSH TO PREVENT RELATIVE AXIAL MOVEMENT BETWEEN THE SAME WHEN THE BEARING IS INSERTED IN A PEDESTAL.
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) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |