US3641882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cylinder liner
Assignee: GKN Sheepbridge Stokes Ltd
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Filing: 1970-03-04
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Granted: 1972-02-15
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Expires: 1990-03-04
Abstract
Abstract To decrease fretting between lands of a fitting band extending circumferentially around a cylinder liner and the bore containing said liner, a layer of plastic material is provided on at least a part of the fitting band. The plastics material is sprayed onto the fitting band or is in the form of a circumferential strip of plastics material preformed and shrunk on to the liner. The fitting band is machined to the required diameter after the plastics material has been applied.
Inventors
- 👤 George Ernest Herbert Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:26
CPC Classifications
F; F02; F02F; F02F1/00; F02F1/004; F02F1/02; F02F1/10; F02F1/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
54 words
A cylinder liner wherein the external surface of the liner is formed with a fitting band comprising a number of circumferential lands adapted to engage a surrounding bore to form a water seal, and a circumferential layer of plastic material is applied to the outer peripheral surface of at least one of the lands.
Claim 2
Dependent Claim
54 words
A cylinder liner wherein the external surface of the liner is formed with a fitting band comprising a number of circumferential lands adapted to engage a surrounding bore to form a water seal, and a circumferential layer of plastic material is applied to the outer peripheral surface of at least one of the lands.
Claim 3
Dependent Claim
37 words
A cylinder liner according to claim 1 wherein said band on the liner comprises a plurality of lands and wherein the outermost lands each have a layer of plastic material applied to the outer peripheral surface thereof.
Claim 4
Dependent Claim
21 words
A cylinder liner according to claim 1 wherein the plastics material is located within a circumferential groove around the fitting band.
Claim 5
Dependent Claim
14 words
A cylinder liner according to claim 1 wherein the plastics material is a polyamide.
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) | 1975-02-14 | 1975-08-16 | 1976-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-14 | 1979-08-16 | 1980-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-14 | 1983-08-16 | 1984-02-15 | $7700.00 | Window Closed / Lapsed |