US4012539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of applying and bonding a bearing lining comprising a mixture of an arylene sulphide polymer and a metallic oxide to a backing material
Assignee: Federal Mogul Engineering Ltd
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Filing: 1975-08-14
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Granted: 1977-03-15
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Expires: 1995-08-14
Abstract
Abstract This invention is a new method of applying an arylene sulphide polymer bearing lining to a bearing backing in particular where the polymer is poly phenylene sulphide. In order to get effective cross-linking in the linking and effective bonding to the backing it has been found of importance to include with the uncured polymer an oxidizing agent preferably a metallic oxide powder in the proportion by weight to the polymer of about 5:95. Copper, tin, lead and manganese are preferred metallic oxides because the residue metals left in the bearing lining can have helpful bearing properties in certain applications.
Inventors
- 👤 Glyndwr John Davies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:09
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/14; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/201
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
85 words
A method of applying and bonding a bearing lining comprising a mixture of arylene sulphide polymer and a metallic oxide to a backing in which uncured arylene sulphide is applied to the backing in powdered form with an oxide of copper, tin, lead, or manganese, also in powdered form, in the proportion of about 5-95 by weight of the arylene sulphide polymer, and is cured by heating at a temperature of at least 370° C. in the presence of oxygen substantially provided by said oxide.
Claim 2
Independent Claim
85 words
A method of applying and bonding a bearing lining comprising a mixture of arylene sulphide polymer and a metallic oxide to a backing in which uncured arylene sulphide is applied to the backing in powdered form with an oxide of copper, tin, lead, or manganese, also in powdered form, in the proportion of about 5-95 by weight of the arylene sulphide polymer, and is cured by heating at a temperature of at least 370° C. in the presence of oxygen substantially provided by said oxide.
Claim 3
Dependent Claim
17 words
A method as claimed in claim 1 in which the arylene sulphide polymer is poly phenylene sulphide.
Claim 4
Dependent Claim
22 words
A method as claimed in claim 2 in which the backing is of steel or aluminium or steel with an aluminium lining.
Claim 5
Dependent Claim
20 words
A method as claimed in claim 2 in which the bearing lining after curing is at least 0.005 inch thick.
Claim 6
Dependent Claim
17 words
A method as claimed in claim 4 in which the lining is at least 0.015 inch thick.
Claim 7
Dependent Claim
19 words
A method as claimed in claim 1 in which the heating is performed for at least about 15 minutes.
Claim 8
Dependent Claim
16 words
A method as claimed in claim 2 in which the backing is a continuous elongate strip.
Claim 9
Dependent Claim
17 words
A method as claimed in claim 7 in which the backing passes continuously through a heating zone.
Claim 10
Dependent Claim
20 words
A method as claimed in claim 8 in which individual lengths of elongate strip are formed into semi-cylindrical bearing shells.
Claim 11
Dependent Claim
15 words
A method as claimed in claim 2 in which the backing is a preformed bearing.
References Cited (Backward Citations)
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Cited
US3882030A
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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) | 1980-03-14 | 1980-09-13 | 1981-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-14 | 1984-09-13 | 1985-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-14 | 1988-09-13 | 1989-03-15 | $7700.00 | Window Closed / Lapsed |