Patent US3932004A successfully refreshed from Google Patents.
US3932004A
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US
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Rubber bearing with non-metallic support member
Assignee: Goodrich Corp
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Filing: 1975-02-06
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Granted: 1976-01-13
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Expires: 1995-02-06
Abstract
Abstract A liquid-lubricated rubber bearing having a bearing member composed of resilient elastomeric bearing portions separated by longitudinal grooves is supported by rigid, non-metallic, composite backing structure of non-corrosive, non-shrinkable, non-conductive fibrous material embedded in a vulcanized synthetic rubber matrix. The fibrous material component is preferably one or more square-woven sheets of glass cords or strands. The composite backing can be a unitary cylindrical shell or, in the case of "segmental" type rubber bearings, a series of elongated strips to support the structurally separate or "segmented" bearing portions.
Inventors
- 👤 Roy L. Orndorff, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:56
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/22; B; B63; B63H; B63H23/00; B63H23/32; B63H23/321; B63H23/326; F16C27/00; F16C27/06; F16C27/063; F16C33/20; F16C33/201; F16C33/26; F16C2208/00; F16C2208/02; F16C2208/04; F16C2208/10; F16C2326/00; F16C2326/30; Y; Y10; Y10S; Y10S384/00; Y10S384/90; Y10S384/907
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
64 words
In a generally cylindrical water-lubricated bearing comprising a plurality of bearing portions of resilient elastomeric material separated by longitudinally extending lubricant passages, each bearing portion secured to a rigid non-metallic supporting member, the improvement wherein said non-metallic supporting member is a composite structure consisting essentially of a non-corrosive, non-shrinkable, non-conductive fibrous component embedded in and distributed substantially evenly throughout a vulcanized synthetic rubber component.
Claim 2
Dependent Claim
64 words
In a generally cylindrical water-lubricated bearing comprising a plurality of bearing portions of resilient elastomeric material separated by longitudinally extending lubricant passages, each bearing portion secured to a rigid non-metallic supporting member, the improvement wherein said non-metallic supporting member is a composite structure consisting essentially of a non-corrosive, non-shrinkable, non-conductive fibrous component embedded in and distributed substantially evenly throughout a vulcanized synthetic rubber component.
Claim 3
Dependent Claim
13 words
The invention as defined in claim 1 wherein said fibrous component is glass.
Claim 4
Dependent Claim
25 words
The invention defined in claim 1 wherein said fibrous component comprises a plurality of cords extending substantially parallel to the longitudinal axis of said bearing.
Claim 5
Dependent Claim
12 words
The invention as defined in claim 3 wherein said cords are glass.
Claim 6
Dependent Claim
17 words
The invention defined in claim 1 wherein said fibrous component comprises at least one square-woven fabric sheet.
Claim 7
Dependent Claim
13 words
The invention defined in claim 5 wherein said square-woven fabric sheet is glass.
Claim 8
Dependent Claim
16 words
The invention of claim 1 wherein said fibrous component comprises radially adjacent layers of square-woven fabric.
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) | 1979-01-12 | 1979-07-14 | 1980-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-12 | 1983-07-14 | 1984-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-12 | 1987-07-14 | 1988-01-13 | $7700.00 | Window Closed / Lapsed |