Patent US4613660A successfully refreshed from Google Patents.
Patent US4795274A successfully refreshed from Google Patents.
US4795274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foil bearing
Assignee: Honeywell International Inc
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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 21:23
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.
References Cited (Backward Citations)
US3375046A
Cited
US3382014A
Cited
US3615121A
Cited
US3677612A
Cited
US3635534A
Cited
US3747997A
Cited
US3809443A
Cited
US3893733A
Cited
US4178046A
Cited
US4153315A
Cited
US4082375A
Cited
US4171928A
Cited
US4167295A
Cited
US4227752A
Cited
US4227753A
Cited
US4274683A
Cited
US4277111A
Cited
US4247155A
Cited
US4262975A
Cited
US4277112A
Cited
US4296976A
Cited
US4475824A
Cited
US4552466A
Cited
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 |