US4795274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foil bearing
Assignee: Honeywell International Inc
•
Filing: 1987-08-10
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Granted: 1989-01-03
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Expires: 2007-08-10
Abstract
Abstract A fluid film foil bearing having a resilient trailing edge support.
Inventors
- 👤 Alston L. Gu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:01
CPC Classifications
F; F16; F16C; F16C17/00; F16C17/02; F16C17/024; F16C27/00; F16C27/02; F16C43/00; F16C43/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
134 words
A fluid bearing comprising: a first member having an axially extending bore therein; a second member rotatably supported within the axially extending bore of said first member; and a plurality of spaced compliant foils operably disposed within the axially extending bore of said first member around said second member, said compliant foils including a mounting base at the trailing edge of said foils, the axially extending bore of said first member including a plurality of axially extending slots for receiving said mounting base of said spaced compliant foils; and coil springs for providing resilient support of said mounting base of said plurality of compliant foils, said coil springs disposed within the axially extending slots between the base thereof and said mounting base to bias the trailing edge of said foils towards said second member.
Claim 2
Dependent Claim
134 words
A fluid bearing comprising: a first member having an axially extending bore therein; a second member rotatably supported within the axially extending bore of said first member; and a plurality of spaced compliant foils operably disposed within the axially extending bore of said first member around said second member, said compliant foils including a mounting base at the trailing edge of said foils, the axially extending bore of said first member including a plurality of axially extending slots for receiving said mounting base of said spaced compliant foils; and coil springs for providing resilient support of said mounting base of said plurality of compliant foils, said coil springs disposed within the axially extending slots between the base thereof and said mounting base to bias the trailing edge of said foils towards said second member.
Claim 3
Dependent Claim
134 words
A fluid bearing comprising: a first member having an axially extending bore therein; a second member rotatably supported within the axially extending bore of said first member; and a plurality of spaced compliant foils operably disposed within the axially extending bore of said first member around said second member, said compliant foils including a mounting base at the trailing edge of said foils, the axially extending bore of said first member including a plurality of axially extending slots for receiving said mounting base of said spaced complaint foils; and corrugated springs for providing resilient support of said mounting base of said plurality of compliant foils, said corrugated springs disposed within the axially extending slots between the base thereof and said mounting base to bias the trailing edge of said foils towards said second member.
Claim 4
Dependent Claim
134 words
A fluid bearing comprising: a first member having an axially extending bore therein; a second member rotatably supported within the axially extending bore of said first member; and a plurality of spaced compliant foils operably disposed within the axially extending bore of said first member around said second member, said compliant foils including a mounting base at the trailing edge of said foils, the axially extending bore of said first member including a plurality of axially extending slots for receiving said mounting base of said spaced complaint foils; and corrugated springs for providing resilient support of said mounting base of said plurality of compliant foils, said corrugated springs disposed within the axially extending slots between the base thereof and said mounting base to bias the trailing edge of said foils towards said second member.
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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) | 1992-01-03 | 1992-07-04 | 1993-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-03 | 1996-07-04 | 1997-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-03 | 2000-07-04 | 2001-01-03 | $7700.00 | Window Closed / Lapsed |