US4046434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deformable bearing seat
Assignee: National Aeronautics and Space Administration
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Filing: 1975-07-14
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Granted: 1977-09-06
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Expires: 1995-07-14
Abstract
Abstract A deformable bearing seat is provided for seating a bearing assembly in a housing. The seat includes a seating surface in the housing having a first predetermined spheroidal contour when the housing is in an undeformed mode. The seating surface is deformable to a second predetermined spherically contoured surface when the housing is in a deformed mode. The seat is particularly adaptable for application to a rotating blade and mounting ring assembly in a gas turbine engine.
Inventors
- 👤 Otis S. Moreman, III
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:10
CPC Classifications
F; F16; F16C; F16C27/00; F16C27/08; F01; F01D; F01D7/00; F05; F05D; F05D2220/00; F05D2220/30; F05D2220/36; F05D2260/00; F05D2260/70; F05D2260/74; F05D2260/76; F05D2260/79
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
71 words
A deformable bearing seat for seating a bearing assembly in a housing, said seat comprising: a deformable seating surface having a predetermined spheroidally contoured surface adapted to engage a first portion of said bearing assembly when said housing is in an undeformed mode, said seating surface deformable to a predetermined spherically contoured surface adapted to engage a second portion of said bearing assembly when said housing is in a deformed mode.
Claim 2
Dependent Claim
71 words
A deformable bearing seat for seating a bearing assembly in a housing, said seat comprising: a deformable seating surface having a predetermined spheroidally contoured surface adapted to engage a first portion of said bearing assembly when said housing is in an undeformed mode, said seating surface deformable to a predetermined spherically contoured surface adapted to engage a second portion of said bearing assembly when said housing is in a deformed mode.
Claim 3
Dependent Claim
17 words
A bearing seat as set forth in claim 1 wherein said second portion includes said first portion.
Claim 4
Dependent Claim
97 words
In a housing having at least one bearing assembly, the combination comprising: a deformable seating surface in said housing having a predetermined spheroidally contoured surface when said housing is in an undeformed mode, said seating surface being deformable to a predetermined spherically contoured surface when said housing is in a deformed mode; and a bearing race in said bearing assembly, said bearing race having a first surface with a spherical contour substantially identical to said predetermined spherically contoured surface, said first surface engaging said deformable seating surface when said housing is in said undeformed and deformed modes.
Claim 5
Dependent Claim
97 words
In a housing having at least one bearing assembly, the combination comprising: a deformable seating surface in said housing having a predetermined spheroidally contoured surface when said housing is in an undeformed mode, said seating surface being deformable to a predetermined spherically contoured surface when said housing is in a deformed mode; and a bearing race in said bearing assembly, said bearing race having a first surface with a spherical contour substantially identical to said predetermined spherically contoured surface, said first surface engaging said deformable seating surface when said housing is in said undeformed and deformed modes.
Claim 6
Dependent Claim
36 words
The invention as set forth in claim 3 wherein said predetermined spheroidally contoured surface engages a first portion of said first surface and said predetermined spherically contoured surface engages a second portion of said first surface.
Claim 7
Dependent Claim
168 words
In a thrust generating gas turbine engine having a blade and ring assembly mounted for rotation about a first axis, said assembly including a plurality of blades each rotatably secured to said ring for rotation about a second axis, a plurality of bearing assemblies each disposed adjacent one of said blades, means for securing said plurality of blades to said ring, the combination comprising: a deformable seating surface associated with one of said bearing assemblies, said seating surface having a first predetermined spheroidally contoured surface when said ring is in an undeformed mode; and a bearing race in at least one of said bearing assemblies, said race having a first surface engaging said deformable seating surface, said seating surface in engagement with a first portion of said first surface when said ring is in an undeformed mode, said seating surface deformable to a second predetermined spherically contoured surface when said ring is in said deformed mode, said spherically contoured surface engaging a second portion of said first surface.
Claim 8
Dependent Claim
168 words
In a thrust generating gas turbine engine having a blade and ring assembly mounted for rotation about a first axis, said assembly including a plurality of blades each rotatably secured to said ring for rotation about a second axis, a plurality of bearing assemblies each disposed adjacent one of said blades, means for securing said plurality of blades to said ring, the combination comprising: a deformable seating surface associated with one of said bearing assemblies, said seating surface having a first predetermined spheroidally contoured surface when said ring is in an undeformed mode; and a bearing race in at least one of said bearing assemblies, said race having a first surface engaging said deformable seating surface, said seating surface in engagement with a first portion of said first surface when said ring is in an undeformed mode, said seating surface deformable to a second predetermined spherically contoured surface when said ring is in said deformed mode, said spherically contoured surface engaging a second portion of said first surface.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-05 | 1981-03-07 | 1981-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-05 | 1985-03-07 | 1985-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-05 | 1989-03-07 | 1989-09-06 | $7700.00 | Window Closed / Lapsed |