Patent US4193645A successfully refreshed from Google Patents.
US4193645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plain bearings
Assignee: Federal Mogul Engineering Ltd
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Filing: 1978-10-10
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Granted: 1980-03-18
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Expires: 1998-10-10
Abstract
Abstract This invention consists of a plain bearing in which the bearing surface consists of or includes poly-phenylene sulphide to give good bearing properties and also because such linings can be bonded to backings of steel or aluminium or aluminium alloys with a bond that withstands hard operating conditions, for example changes of temperature and changes of shape and stress. The linear polymer can be cross-linked to a desired extent by appropriate treatment.
Inventors
- 👤 Dennis S. Baker
- 👤 Glyndwr J. Davies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:06
CPC Classifications
F; F16; F16C; F16C9/00; F16C9/02; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/201; Y; Y10; Y10S; Y10S384/00; Y10S384/90; Y10S384/909; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/1275; Y10T428/12757; Y10T428/31504; Y10T428/31533
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
62 words
In a plain bearing for use in an internal combustion engine, which is lubricated with a lubricant consisting of an oil, the improvement which comprises a steel backing having adhered thereto a soft bearing layer of an alloy selected from the group consisting of copper/lead, lead/bronze, aluminum/tin and aluminum/silicon, and having adherent on said bearing layer a protective overlay of polyphenylene sulfide.
Claim 2
Dependent Claim
62 words
In a plain bearing for use in an internal combustion engine, which is lubricated with a lubricant consisting of an oil, the improvement which comprises a steel backing having adhered thereto a soft bearing layer of an alloy selected from the group consisting of copper/lead, lead/bronze, aluminum/tin and aluminum/silicon, and having adherent on said bearing layer a protective overlay of polyphenylene sulfide.
Claim 3
Dependent Claim
64 words
In a plain bearing for use in an internal combustion engine, which is lubricated with a lubricant consisting of an oil, the improvement which comprises a steel backing having adhered thereto a soft non-porous bearing layer of an alloy selected from the group consisting of copper/lead, lead/bronze, aluminum/tin and aluminum silicon, and having adherent on said bearing layer a protective overlay of polyphenylene sulfide.
Claim 4
Dependent Claim
64 words
In a plain bearing for use in an internal combustion engine, which is lubricated with a lubricant consisting of an oil, the improvement which comprises a steel backing having adhered thereto a soft non-porous bearing layer of an alloy selected from the group consisting of copper/lead, lead/bronze, aluminum/tin and aluminum silicon, and having adherent on said bearing layer a protective overlay of polyphenylene sulfide.
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) | 1983-03-18 | 1983-09-17 | 1984-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-18 | 1987-09-17 | 1988-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-18 | 1991-09-17 | 1992-03-18 | $7700.00 | Window Closed / Lapsed |