US4273835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preparing a cylinder liner for liquid-cooled engines having a bandlike sealant on the outer-surface thereof
Assignee: ThreeBond Co Ltd
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Filing: 1979-08-17
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Granted: 1981-06-16
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Expires: 1999-08-17
Abstract
Abstract A cylinder liner for liquid-cooled engines having a bandlike sealant on the outer-surface thereof wherein the sealant is formed by a two-layer laminate of silicone resin having a completely cured inner layer and a half-cured outer layer. This cylinder liner has an excellent sealing effect.
Inventors
- 👤 Senji Higuchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:34
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/26; C11D3/33; C11D10/00; C11D10/04; C11D3/02; C11D3/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
77 words
A method for preparing a cylinder liner for liquid-cooled engines having a bandlike sealant on the outer-surface thereof comprising the steps of coating a putty silicone resin on the outer-surface of said cylinder line to form a belt-like layer, curing said resin completely, further applying said resin on said completely cured resin, and half curing said applied resin to form a two-layer laminate of silicone resin having a completely cured inner layer and a half-cured outer layer.
Claim 2
Independent Claim
77 words
A method for preparing a cylinder liner for liquid-cooled engines having a bandlike sealant on the outer-surface thereof comprising the steps of coating a putty silicone resin on the outer-surface of said cylinder line to form a belt-like layer, curing said resin completely, further applying said resin on said completely cured resin, and half curing said applied resin to form a two-layer laminate of silicone resin having a completely cured inner layer and a half-cured outer layer.
Claim 3
Dependent Claim
21 words
The method as claimed in claim 1 in which said silicone resin is a composition having mainly an organopoly siloxane therein.
Claim 4
Dependent Claim
130 words
The method as set forth in claim 1, further comprising the step of forming the two-layer laminate in said previously mentioned steps such that the two-layer laminate is thicker than a clearance between the outer-surface of said cylinder liner and a protruding wall of a cylinder block formed in a cylinder bore of the cylinder block under a water jacket portion of the cylinder bore, inserting said cylinder liner downwardly into the cylinder bore, thereby scraping a surface of the half-cured outer layer of said two-layer laminate by said protruding wall causing the half-cured outer layer to rise above an entrance part of the clearance thereby sealing the entrance part, gradually curing the half-cured outer layer by cooling water heated in the water jacket portion during operation of the engine.
Claim 5
Dependent Claim
12 words
A cylinder liner produced by the method of claim 1 or 3.
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) | 1984-06-15 | 1984-12-15 | 1985-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-15 | 1988-12-15 | 1989-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-15 | 1992-12-15 | 1993-06-16 | $7700.00 | Window Closed / Lapsed |