Patent US94024A successfully refreshed from Google Patents.
Patent US4479735A successfully refreshed from Google Patents.
US4479735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shrink fit sleeve for rotating machinery
Assignee: AMERICAN DAVIDSON Inc
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Filing: 1983-01-13
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Granted: 1984-10-30
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Expires: 2003-01-13
Abstract
Abstract Shrink fit sleeves 30 interposed between the hub 21 and the shaft 10 of a large rotating apparatus adapted for operation in an environment subject to severe cyclical loading as occasioned by large thermal transients, are provided with the property of having greater axial shear flexibility than radial flexibility and/or greater axial flexibility than that of the shrunk on component 21.
Inventors
- 👤 Daniel G. Thompson
- 👤 Siu-Kee Chan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:02
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/06; F16D1/08; F16D1/0829; F16D1/0835; Y; Y10; Y10T; Y10T403/00; Y10T403/21; Y10T403/217; Y10T403/70; Y10T403/7047; Y10T403/7061
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
90 words
For large apparatus including a radial outer rotatable element driven by and encompassing a rotating shaft, and adapted for operation in an environment subject to severe cyclic loading occasioned by large speed changes and/or large thermal transients, an improvement for reducing ratcheting of the driven element relative to said shaft, comprising: an intermediate sleeve element between said outer driven element and said shaft, said outer driven element being heat shrunk on said sleeve, said sleeve having a greater flexibility in at least an axial direction than in a radial direction.
Claim 2
Dependent Claim
90 words
For large apparatus including a radial outer rotatable element driven by and encompassing a rotating shaft, and adapted for operation in an environment subject to severe cyclic loading occasioned by large speed changes and/or large thermal transients, an improvement for reducing ratcheting of the driven element relative to said shaft, comprising: an intermediate sleeve element between said outer driven element and said shaft, said outer driven element being heat shrunk on said sleeve, said sleeve having a greater flexibility in at least an axial direction than in a radial direction.
Claim 3
Dependent Claim
19 words
For apparatus according to claim 1 wherein: said sleeve comprises a composite material of reinforcing elements and a matrix.
Claim 4
Dependent Claim
40 words
For apparatus according to claim 2 wherein: said reinforcing elements provide a greater degree of flexibility in an axial direction than in a circumferential direction, and a greater degree of flexibility in the circumferential direction than in a radial direction.
Claim 5
Dependent Claim
18 words
For apparatus according to claim 1 wherein: said sleeve comprises a lamina of metal rings encircling said shaft.
Claim 6
Dependent Claim
14 words
For apparatus according to claim 4 wherein: said lamina of rings comprise a spiral.
Claim 7
Dependent Claim
14 words
For apparatus according to claim 1 wherein: said sleeve comprises a slitted, corrugated ring.
Claim 8
Dependent Claim
98 words
For large apparatus including a radial outer rotatable element driven by and encompassing a rotating shaft, and adapted for operation in an environment subject to severe cyclic loading occasioned by large speed changes and/or large thermal transients, an improvement for reducing ratcheting of the driven element relative to said shaft, comprising: an intermediate sleeve element between said outer driven element and said shaft, said outer driven element being heat shrunk on said sleeve, said sleeve having a greater flexibility in at least an axial direction than the flexibility of the outer rotatable driven element in an axial direction.
Claim 9
Dependent Claim
98 words
For large apparatus including a radial outer rotatable element driven by and encompassing a rotating shaft, and adapted for operation in an environment subject to severe cyclic loading occasioned by large speed changes and/or large thermal transients, an improvement for reducing ratcheting of the driven element relative to said shaft, comprising: an intermediate sleeve element between said outer driven element and said shaft, said outer driven element being heat shrunk on said sleeve, said sleeve having a greater flexibility in at least an axial direction than the flexibility of the outer rotatable driven element in an axial direction.
References Cited (Backward Citations)
US3019039A
Cited
US3715176A
Cited
US3776653A
Cited
US3838928A
Cited
US3787141A
Cited
SU523994A1
Cited
US4147468A
Cited
SU547569A1
Cited
GB2009366A
Cited
US4218186A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-30 | 1988-04-30 | 1988-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-30 | 1992-04-30 | 1992-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-30 | 1996-04-30 | 1996-10-30 | $7700.00 | Window Closed / Lapsed |