Patent US4950089A successfully refreshed from Google Patents.
US4950089A
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Compliant foil bearing
Assignee: Williams International Corp
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Filing: 1988-05-12
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Granted: 1990-08-21
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Expires: 2008-05-12
Abstract
Abstract A compliant foil bearing comprises a relatively thin bearing foil that is supported in juxtaposed relation to both a shaft and a bearing housing by a pair of sinusoidally folded spacer foils.
Inventors
- 👤 Allen M. Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:42
CPC Classifications
F; F16; F16C; F16C17/00; F16C17/02; F16C17/024; F16C2360/00; F16C2360/23
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
120 words
A compliant foil bearing adapted to be supported in a bearing housing for journaling of a shaft, said bearing comprising a one-piece bearing foil having a first relatively thin bearing foil end portion disposed about said shaft in juxtaposed relation thereto, said bearing foil having a second relatively thin bearing foil opposite end portion extending circumferentially of said shaft in radially outwardly spaced relation from said first bearing foil portion and in juxtaposed relation to said bearing housing, a relatively thick segregating foil extending circumferentially of said shaft between said first and second bearing foil portions and radially spaced therefrom, respectively, and a pair of spacer foils disposed between said segregating foil and said first and second bearing portions, respectively.
Claim 2
Dependent Claim
120 words
A compliant foil bearing adapted to be supported in a bearing housing for journaling of a shaft, said bearing comprising a one-piece bearing foil having a first relatively thin bearing foil end portion disposed about said shaft in juxtaposed relation thereto, said bearing foil having a second relatively thin bearing foil opposite end portion extending circumferentially of said shaft in radially outwardly spaced relation from said first bearing foil portion and in juxtaposed relation to said bearing housing, a relatively thick segregating foil extending circumferentially of said shaft between said first and second bearing foil portions and radially spaced therefrom, respectively, and a pair of spacer foils disposed between said segregating foil and said first and second bearing portions, respectively.
Claim 3
Dependent Claim
20 words
A compliant foil bearing in accordance with claim 1 wherein said spacer foils are of generally sinusoidally folded cross section.
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) | 1993-08-20 | 1994-02-19 | 1994-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-20 | 1998-02-19 | 1998-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-20 | 2002-02-19 | 2002-08-21 | $7700.00 | Window Closed / Lapsed |