Patent US2775689A successfully refreshed from Google Patents.
Patent US3877762A successfully refreshed from Google Patents.
US3877762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine rear bearing support structure
Assignee: RTX Corp
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Filing: 1974-03-19
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Granted: 1975-04-15
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Expires: 1994-03-19
Abstract
Abstract A bearing support structure for a turbine includes a plurality of flat struts extending between inner and outer rings and attached to each by axially extending pins or bolts, a portion of the strut having attachment surfaces to which the inner and outer walls of the gas duct are attached. The inner ring supports a bearing for the turbine shaft.
Inventors
- 👤 William T Dennison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:20
CPC Classifications
F; F01; F01D; F01D25/00; F01D25/16; F01D25/162
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
80 words
A bearing support structure for a turbine shaft including: an outer casing ring; an inner bearing support ring spaced from and concentric to the outer ring; a plurality of struts extending between said rings and having a pivotal connection with each ring, the pivotal connection being parallel to the ring axis; a bearing supported within the inner ring; and a shaft supported by said bearing; said struts being relatively flat and having enlargements at each end for the pivotal connections.
Claim 2
Dependent Claim
80 words
A bearing support structure for a turbine shaft including: an outer casing ring; an inner bearing support ring spaced from and concentric to the outer ring; a plurality of struts extending between said rings and having a pivotal connection with each ring, the pivotal connection being parallel to the ring axis; a bearing supported within the inner ring; and a shaft supported by said bearing; said struts being relatively flat and having enlargements at each end for the pivotal connections.
Claim 3
Dependent Claim
32 words
A bearing support structure as in claim 1 in which the outer ring supports a plurality of circumferentially spaced axially extending pins on which the outer ends of the struts are pivoted.
Claim 4
Dependent Claim
32 words
A bearing support structure as in claim 1 in which the inner ring supports a plurality of circumferentially spaced axially extending pins on which the inner ends of the struts are positioned.
Claim 5
Dependent Claim
38 words
A bearing support structure as in claim 1 in which the struts are relatively flat in cross section with the greater dimension extending axially of the structure, and with enlargements at opposite ends to receive the pivotal connections.
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) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |