US3826547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water lubricated rubber bearing
Assignee: Johnson Rubber Co
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Filing: 1973-04-27
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Granted: 1974-07-30
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Expires: 1993-04-27
Abstract
Abstract A water lubricated bearing is disclosed providing a housing formed with a cylindrical bore in which a plurality of symmetrically spaced keys are mounted. A compliment of staves formed entirely of elastomeric material are positioned in the bore and directly compressed by a removable compression head to cause tight engagement between the bore and keys. Removal of the compression head allows the staves to assume their unstressed condition in which clearance is provided with respect to both the bore and the keyways.
Inventors
- 👤 D Finefrock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:28
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/08; F16C27/00; F16C27/02; F16C33/22; F16C33/26; F16C2210/00; F16C2210/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
262 words
An elastomeric bearing for a rotatable shaft comprising housing means providing a cylindrical bore adapted to be positioned around said shaft, a plurality of segmental bearing staves formed entirely of elastomeric material and providing an inner bearing surface of elastomeric material adapted to provide bearing contact with the surface of said shaft and cooperate with the bearing surface of the other of said staves to form a tubular bearing having a bearing axis, the exterior of said staves cooperating to define a cylindrical surface around said axis engaging substantially throughout its entire extent with a mating inner surface on said housing means, said staves and housing means providing a mating key and keyway extending substantially parallel to said bearing axis with the staves extending past said key and keyway, said staves, housing means, and key and keyway being proportioned to provide clearance when said staves are unstressed, said housing means including clamping means releasably producing pressure between said mating inner surface of said housing and the exterior surface of said staves and causing said key and keyway to engage without clearance, said pressure between said mating inner surface of said housing and said exterior surface of said stave cooperating with said key and keyway to provide the entire locking of said staves in said housing means, and stop means opposing said clamping means when said staves are in a predetermined position and accurately determining the position of said inner bearing surface of all of said staves, release of said clamping means permitting axial movement of said staves relative to said housing assembly.
Claim 2
Dependent Claim
262 words
An elastomeric bearing for a rotatable shaft comprising housing means providing a cylindrical bore adapted to be positioned around said shaft, a plurality of segmental bearing staves formed entirely of elastomeric material and providing an inner bearing surface of elastomeric material adapted to provide bearing contact with the surface of said shaft and cooperate with the bearing surface of the other of said staves to form a tubular bearing having a bearing axis, the exterior of said staves cooperating to define a cylindrical surface around said axis engaging substantially throughout its entire extent with a mating inner surface on said housing means, said staves and housing means providing a mating key and keyway extending substantially parallel to said bearing axis with the staves extending past said key and keyway, said staves, housing means, and key and keyway being proportioned to provide clearance when said staves are unstressed, said housing means including clamping means releasably producing pressure between said mating inner surface of said housing and the exterior surface of said staves and causing said key and keyway to engage without clearance, said pressure between said mating inner surface of said housing and said exterior surface of said stave cooperating with said key and keyway to provide the entire locking of said staves in said housing means, and stop means opposing said clamping means when said staves are in a predetermined position and accurately determining the position of said inner bearing surface of all of said staves, release of said clamping means permitting axial movement of said staves relative to said housing assembly.
Claim 3
Dependent Claim
30 words
An elastomeric bearing as set forth in claim 1 wherein said housing means provides said key and said keyway is provided in the outer surface of said compliment of staves.
Claim 4
Dependent Claim
26 words
An elastomeric bearing as set forth in claim 2 wherein a plurality of similar keys and keyways are provided at symmetrically spaced locations around said bore.
Claim 5
Dependent Claim
18 words
An elastomeric bearing as set forth in claim 3 wherein said keys are bolted to said cylindrical bore.
Claim 6
Dependent Claim
27 words
An elastomeric bearing as set forth in claim 4 wherein each of said keyways is formed substantially along the center of the exterior surface of said staves.
Claim 7
Dependent Claim
26 words
An elastomeric bearing as set forth in claim 1 wherein a plurality of similar keys and keyways are provided at symmetrically spaced locations around said bore.
Claim 8
Dependent Claim
27 words
An elastomeric bearing as set forth in claim 6 wherein each of said keyways is positioned substantially along the center of the exterior surface of said staves.
References Cited (Backward Citations)
US1885339A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-29 | 1978-01-28 | 1978-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-29 | 1982-01-28 | 1982-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-29 | 1986-01-28 | 1986-07-30 | $7700.00 | Window Closed / Lapsed |