Patent US3215480A successfully refreshed from Google Patents.
US3215480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrodynamic foil bearings with bearing foil retaining means
Assignee: Individual
•
Filing: 1963-08-29
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Granted: 1965-11-02
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Expires: 1983-08-29
Abstract
No abstract record available.
Inventors
- 👤 David J Marley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:29
CPC Classifications
F; F16; F16C; F16C17/00; F16C17/02; F16C17/024; F16C17/10; F16C27/00; F16C27/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A FILM LUBRICATED SHAFT BEARING COMPRISING: A SUPPORTING STRUCTURE HAVING A SHAFT RECEIVING OPENING; BEARING MEANS WITHIN SAID OPENING INCLUDING A PLURALITY OF THE RELATIVELY THIN FLEXIBLE RESILIENTLY COMPLIANT BEARING FOILS SPACED AROUND SAID OPENING AND EACH EXTENDING GENERALLY CIRCUMFERENTIALLY ABOUT A PORTION ONLY OF THE OPENING; SAID BEARING FOILS BEING SUPPORTED BY SAID STRUCTURE AT POSITIONS SPACED ALONG EACH FOILS AND BEING SPACED FROM SAID STRUCTURE INTERMEDIATE SAID POSITIONS TO PROVIDE A PLURALITY OF CONCAVE BEARING SURFACES FOR RESILIENTLY POSITIONING A SHAFT IN SAID OPENING; AND MEANS ENGAGING SAID BEARING FOILS FOR LIMITING INWARD MOVEMENT OF SAID BEARING FOILS TOWARDS THE SHAFT.
Claim 2
Dependent Claim
103 words
A FILM LUBRICATED SHAFT BEARING COMPRISING: A SUPPORTING STRUCTURE HAVING A SHAFT RECEIVING OPENING; BEARING MEANS WITHIN SAID OPENING INCLUDING A PLURALITY OF THE RELATIVELY THIN FLEXIBLE RESILIENTLY COMPLIANT BEARING FOILS SPACED AROUND SAID OPENING AND EACH EXTENDING GENERALLY CIRCUMFERENTIALLY ABOUT A PORTION ONLY OF THE OPENING; SAID BEARING FOILS BEING SUPPORTED BY SAID STRUCTURE AT POSITIONS SPACED ALONG EACH FOILS AND BEING SPACED FROM SAID STRUCTURE INTERMEDIATE SAID POSITIONS TO PROVIDE A PLURALITY OF CONCAVE BEARING SURFACES FOR RESILIENTLY POSITIONING A SHAFT IN SAID OPENING; AND MEANS ENGAGING SAID BEARING FOILS FOR LIMITING INWARD MOVEMENT OF SAID BEARING FOILS TOWARDS THE SHAFT.
References Cited (Backward Citations)
US835739A
Cited
US1384173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |