US2628138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Porous chambered bearing
Assignee: Michigan Powdered Metal Products Co
•
Filing: 1949-03-18
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Granted: 1953-02-10
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Expires: 1969-03-18
Abstract
No abstract record available.
Inventors
- 👤 Leland C Blood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:09
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/14; F16C2220/00; F16C2220/20; F16C2223/00; F16C2223/10; F16C2223/12; Y; Y10; Y10S; Y10S384/00; Y10S384/90; Y10S384/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A BEARING COMPRISING A BEARING BODY OF POROUS SINTERED POWDERED METAL HAVING A BEATING SURFACE AND A COMPLETELY INTERNAL LUBRICANT CHAMBER WHOLLY ENCLOSED IN A WALL THEREOF AND COMMUNICATING WITH SAID BEARING SURFACE THROUGH THE PORES IN SAID BODY, SAID CHAMBER IN CROSSSECTION BEING SUBDIVIDED INTO A MULTIPICITY OF CHAMBER PORTIONS SPACED APART FROM ONE OF OTHER IN A DIRECTION CO-EXTENSIVE WITH SAID BEARING SURFACE, AND REINFORCING BRIDGE PORTIONS OF BEARING BODY METAL INTEGRAL WITH SAID BEARING BODY DISPOSED IN THE INTERVALS BETWEEN SAID SPACED CHAMBER PORTIONS.
Claim 2
Dependent Claim
87 words
A BEARING COMPRISING A BEARING BODY OF POROUS SINTERED POWDERED METAL HAVING A BEATING SURFACE AND A COMPLETELY INTERNAL LUBRICANT CHAMBER WHOLLY ENCLOSED IN A WALL THEREOF AND COMMUNICATING WITH SAID BEARING SURFACE THROUGH THE PORES IN SAID BODY, SAID CHAMBER IN CROSSSECTION BEING SUBDIVIDED INTO A MULTIPICITY OF CHAMBER PORTIONS SPACED APART FROM ONE OF OTHER IN A DIRECTION CO-EXTENSIVE WITH SAID BEARING SURFACE, AND REINFORCING BRIDGE PORTIONS OF BEARING BODY METAL INTEGRAL WITH SAID BEARING BODY DISPOSED IN THE INTERVALS BETWEEN SAID SPACED CHAMBER PORTIONS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-10 | 1956-08-11 | 1957-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-10 | 1960-08-11 | 1961-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-10 | 1964-08-11 | 1965-02-10 | $7700.00 | Window Closed / Lapsed |