US4308153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite bearing material with metallic backing
Assignee: Daido Metal Co Ltd
•
Filing: 1979-09-26
•
Granted: 1981-12-29
•
Expires: 1999-09-26
Abstract
Abstract A composite bearing material has a porous metallic layer integrally formed on the surface of a metallic backing, the pores and surfaces of the porous metallic layer being impregnated with a mixed bearing material of 0.1-15% fibrous material having good affinity for oil, 1-15% lubricating oil and the remainder synthetic resin. This composite bearing material is improved in its bearing properties such as load carrying capacity, wear resistance, non-stick properties and dimensional stability.
Inventors
- 👤 Sanae Mori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:09
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/043; B32B3/00; B32B3/26; C; C10; C10M; C10M169/00; C10M169/04; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/201; F16C33/203; F16C33/206; B32B2305/00; B32B2305/02; B32B2305/026; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/126; C10M2207/16; C10M2209/00; C10M2209/02; C10M2209/04; C10M2209/043; C10M2209/12; C10M2213/00; C10M2213/06; C10M2213/062; C10M2217/00; C10M2217/04; C10M2217/044; C10M2217/0443; C10N; C10N2010/00; C10N2010/02; C10N2010/08; C10N2020/00; C10N2020/01; C10N2020/055; C10N2020/063; C10N2050/00; C10N2050/023; C10N2050/08; C10N2050/14; C10N2070/00; C10N2080/00; F16C2204/00; F16C2204/10; F16C2204/52; F16C2208/00; F16C2208/02; F16C2208/20; F16C2208/60; F16C2208/66; Y; Y10; Y10S; Y10S384/00; Y10S384/90; Y10S384/912; Y10T; Y10T428/00; Y10T428/12; Y10T428/12007; Y10T428/12493; Y10T428/12535; Y10T428/12556; Y10T428/12569
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
81 words
A composite bearing material with metal backing having superior load carrying capacity, wear resistance and non-stick properties, and comprising a metallic backing, a porous metallic layer provided on the surface of said metallic backing, and a bearing material mixture impregnating and coating the pores and surfaces of said porous metallic layer, said bearing material consisting essentially of 0.1-15% by weight of fiber material having a good affinity for oil, 1-15% by weight of lubricating oil and the remainder being synthetic resin.
Claim 2
Dependent Claim
81 words
A composite bearing material with metal backing having superior load carrying capacity, wear resistance and non-stick properties, and comprising a metallic backing, a porous metallic layer provided on the surface of said metallic backing, and a bearing material mixture impregnating and coating the pores and surfaces of said porous metallic layer, said bearing material consisting essentially of 0.1-15% by weight of fiber material having a good affinity for oil, 1-15% by weight of lubricating oil and the remainder being synthetic resin.
Claim 3
Dependent Claim
22 words
A composite bearing material with metal backing claimed in claim 1, wherein said material further contains 0.1-10% by weight of metallic soap.
Claim 4
Dependent Claim
23 words
A bearing material with metal backing as claimed in claim 1, wherein said bearing material further contains 0.1-10% by weight of solid lubricant.
Claim 5
Dependent Claim
23 words
A bearing material with metal backing as claimed in claim 2, wherein said bearing material further contains 0.1-10% by weight of solid lubricant.
Claim 6
Dependent Claim
47 words
A bearing material in accordance with claim 4 wherein said metallic backing is steel, said porous metallic layer is bronze, said synthetic resin is polyamide or polyacetal, and wherein a plating layer of copper or nickel is interposed between said metallic backing and said porous metallic layer.
Claim 7
Dependent Claim
29 words
A bearing material in accordance with claim 1 wherein said fiber material having a good affinity for oil consists essentially of fibers having a maximum length of 3 mm.
Claim 8
Dependent Claim
21 words
A bearing material in accordance with claim 6 wherein said fiber material having a good affinity for oil comprises cellulose fiber.
Claim 9
Dependent Claim
14 words
A bearing material in accordance with claim 7 wherein said cellulose fiber is "Permawick".
Claim 10
Dependent Claim
23 words
A composite bearing material in accordance with claim 1 further comprising a plating layer between said metallic backing and said porous metallic layer.
Claim 11
Dependent Claim
95 words
In a composite bearing material having a metal backing, a porous metallic layer provided on the surface of said metallic bearing and a bearing material mixture impregnated and coating the pores and surfaces of said porous metallic layer, said bearing material including lubricating oil and synthetic resin, the improvement wherein said bearing material includes means to increase wear resistance comprising 0.1-15% by weight of fiber material having a good affinity for oil, said lubricating oil being present in an amount of 1-15% by weight and the remainder of said bearing material being said synthetic resin.
Claim 12
Dependent Claim
95 words
In a composite bearing material having a metal backing, a porous metallic layer provided on the surface of said metallic bearing and a bearing material mixture impregnated and coating the pores and surfaces of said porous metallic layer, said bearing material including lubricating oil and synthetic resin, the improvement wherein said bearing material includes means to increase wear resistance comprising 0.1-15% by weight of fiber material having a good affinity for oil, said lubricating oil being present in an amount of 1-15% by weight and the remainder of said bearing material being said synthetic resin.
Claim 13
Dependent Claim
20 words
A bearing material in accordance with claim 10 wherein said fiber material is present in an amount of approximately 3%.
References Cited (Backward Citations)
US2946094A
Cited
US3206264A
Cited
US3300257A
Cited
US3380843A
Cited
GB1321983A
Cited
US3677879A
Cited
JPS4729395U
Cited
US3852203A
Cited
SU590513A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-12-28 | 1985-06-29 | 1985-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-28 | 1989-06-29 | 1989-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-28 | 1993-06-29 | 1993-12-29 | $7700.00 | Window Closed / Lapsed |