US4559248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliding member
Assignee: Oiles Industry Co Ltd
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Filing: 1983-10-26
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Granted: 1985-12-17
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Expires: 2003-10-26
Abstract
Abstract A sliding member is disclosed wherein a sheet-like heat resistant material comprising expanded graphite, mica, etc. singularly or in combination, and a reinforcing material comprising either a combination of a mesh made of metal fine wires with a mesh made by weaving or knitting metal fine wires and fluoroplastic yarns together, or a mesh made by weaving knitting metal fine wires and fluoroplastic yarns together are integrally shaped so that at least on the sliding surface the metal fine wires and the fluoroplastic yarns are exposed, both constituting the reinforcing material, and the heat resistant material held by the metal fine wires and filling the meshes of the mesh as well as the voids formed between the metal fine wires in a mutually intermingled state, exhibiting a smooth surface.
Inventors
- 👤 Kikuo Sumiyoshi
- 👤 Kingo Miyasaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:52
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/28; B; B29; B29D; B29D99/00; B29D99/0053; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/10; F16J15/12; F16J15/121; F16J15/126; B29L; B29L2031/00; B29L2031/26; Y; Y10; Y10S; Y10S277/00; Y10S277/935; Y10S277/936; Y10S277/944; Y10S285/00; Y10S285/909; Y10S285/91; Y10S384/00; Y10S384/90; Y10S384/907; Y10T; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/107; Y10T442/109; Y10T442/126
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
146 words
A sliding member comprising: at least one heat resistant material selected from the group consisting of expanded graphite, mica, ceramic and asbestos; a reinforcing material in the form of either a combination of a metal mesh and a mesh made by weaving or knitting metal fine wires and fluoroplastic yarns together, or a mesh made by weaving or knitting metal fine wires and fluoroplastic yarns together, whereby said heat resistant material and said reinforcing material are integrally shaped so that at least on the sliding surface of said sliding member are exposed said fine metal wires and said fluoroplastic yarns, both constituting said reinforcing material, and said heat resistant material being retained by said mesh as well as filling the voids formed between said metal fine wires in a mutually intermingled state of heat resistant material and metal fine wires, and providing substantially a smooth surface.
Claim 2
Dependent Claim
146 words
A sliding member comprising: at least one heat resistant material selected from the group consisting of expanded graphite, mica, ceramic and asbestos; a reinforcing material in the form of either a combination of a metal mesh and a mesh made by weaving or knitting metal fine wires and fluoroplastic yarns together, or a mesh made by weaving or knitting metal fine wires and fluoroplastic yarns together, whereby said heat resistant material and said reinforcing material are integrally shaped so that at least on the sliding surface of said sliding member are exposed said fine metal wires and said fluoroplastic yarns, both constituting said reinforcing material, and said heat resistant material being retained by said mesh as well as filling the voids formed between said metal fine wires in a mutually intermingled state of heat resistant material and metal fine wires, and providing substantially a smooth surface.
Claim 3
Dependent Claim
33 words
A sliding member as claimed in claim 1 wherein said fine metal wires are formed of at least one material selected from the group consisting of stainless steel, copper alloy and aluminum alloy.
Claim 4
Dependent Claim
19 words
A sliding member as claimed in claim 1 wherein said fluoroplastic yarns are made of polytetrafluoroethylene or tetrafluoroethylene-hexafluoropropylene copolymer.
Claim 5
Dependent Claim
52 words
A sliding member as claimed in claim 1 wherein the area ratio of the portion of said fine metal wires, the portion of said fluoroplastic yarns and the portion of said heat resistant material exposed on said sliding surface is to 10 to 30%, 10 to 30%, and 40 to 80%, respectively.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-16 | 1989-06-17 | 1989-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-16 | 1993-06-17 | 1993-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-16 | 1997-06-17 | 1997-12-17 | $7700.00 | Window Closed / Lapsed |