Patent US406698A successfully refreshed from Google Patents.
Patent US4046435A successfully refreshed from Google Patents.
US4046435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing seat usable in a gas turbine engine
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 In a gas turbine engine having a blade and mounting ring assembly adapted for rotation about a first axis including a plurality of blades mounted on said ring for rotation about a second axis and a plurality of bearing assemblies, each associated with one of said blades, an improved bearing seat is provided for seating the plurality of bearing assemblies.
Inventors
- 👤 Otis S. Moreman, III
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:39
CPC Classifications
F; F01; F01D; F01D7/00; F05; F05D; F05D2260/00; F05D2260/70; F05D2260/74; F05D2260/76; F05D2260/79
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
94 words
In combination with a gas turbine engine having a rotating blade and mounting ring assembly adapted for rotation about a first axis, the assembly including a plurality of blades, each of said blades being rotatably mounted on said ring for rotation about a second axis, said assembly further including a plurality of bearing assemblies each associated with one of said blades and disposed around the periphery of said rotating ring, the improvement comprising: a substantially continuous seating surface on said ring, said seating surface adapted to engage and seat said plurality of bearing assemblies.
Claim 2
Dependent Claim
94 words
In combination with a gas turbine engine having a rotating blade and mounting ring assembly adapted for rotation about a first axis, the assembly including a plurality of blades, each of said blades being rotatably mounted on said ring for rotation about a second axis, said assembly further including a plurality of bearing assemblies each associated with one of said blades and disposed around the periphery of said rotating ring, the improvement comprising: a substantially continuous seating surface on said ring, said seating surface adapted to engage and seat said plurality of bearing assemblies.
Claim 3
Dependent Claim
33 words
The invention as set forth in claim 1 wherein said seating surface comprises a radially inwardly facing surface extending axially in the direction of said first axis and circumferentially about said first axis.
Claim 4
Dependent Claim
45 words
The invention as set forth in claim 2 further comprising: a plurality of bearing races each associated with one of said bearing assemblies, each of said races being generally circular and disposed coaxially with said second axis, each of said races engaging said seating surface.
Claim 5
Dependent Claim
159 words
In a gas turbine engine including a blade and mounting ring assembly adapted to be rotatable about a first axis, said assembly including a plurality of blades rotatably secured to said ring, the improvement comprising: an annular ring extending circumferentially about, axially along and radially from said first axis, said ring having a plurality of circumferentially spaced apertures extending radially through said ring and a radially inwardly facing substantially continuous axially and circumferentially extending seating surface; a plurality of radially extending blades, each blade having at its radially innermost end a shank portion partially disposed within one of said apertures; means for cooperating with said shanks for retaining said shank portions disposed within said apertures; and a plurality of circumferentially spaced bearing assemblies each disposed adjacent one of said shanks and each including an outer race having a radially outwardly facing surface, said radially outwardly facing surface of at least two of said bearing assemblies engaging said seating surface.
Claim 6
Dependent Claim
159 words
In a gas turbine engine including a blade and mounting ring assembly adapted to be rotatable about a first axis, said assembly including a plurality of blades rotatably secured to said ring, the improvement comprising: an annular ring extending circumferentially about, axially along and radially from said first axis, said ring having a plurality of circumferentially spaced apertures extending radially through said ring and a radially inwardly facing substantially continuous axially and circumferentially extending seating surface; a plurality of radially extending blades, each blade having at its radially innermost end a shank portion partially disposed within one of said apertures; means for cooperating with said shanks for retaining said shank portions disposed within said apertures; and a plurality of circumferentially spaced bearing assemblies each disposed adjacent one of said shanks and each including an outer race having a radially outwardly facing surface, said radially outwardly facing surface of at least two of said bearing assemblies engaging said seating 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 |