Patent US4285527A successfully refreshed from Google Patents.
US4285527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Head gasket assembly with metal inlays
Assignee: JPI ACQUISITION Inc A CORP OF MI
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Filing: 1980-04-25
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Granted: 1981-08-25
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Expires: 2000-04-25
Abstract
Abstract A head gasket to be disposed between a cylinder head having a combustion chamber therein and a cylinder block having a cylinder therein with a combustion chamber located at least partially outside the diameter of the cylinder and with the chamber insert disposed in the head. The gasket comprises a metal core, resilient material on each side of the core and at least one cylinder opening. Metal inlays are fixedly secured to both sides of the core and extend completely about the cylinder openings. The inlays include integral extensions extending from the cylinder openings and in engagement with the metal core for engaging the chamber insert and cylinder block to perfect a seal therebetween.
Inventors
- 👤 Terrence T. Connely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:56
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/10; F16J15/12; F16J15/121; F16J15/122; F16J15/123
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
152 words
A head gasket assembly adapted to be disposed between a head having a precombustion chamber therein and a cylinder block having a cylinder therein with the precombustion chamber located at least partially outside the diameter of the cylinder and with a precombustion chamber insert disposed in the head for defining the passageway between the precombustion chamber and the cylinder, said gasket comprising; body means defining two parallel surfaces adapted to engage and seal the head and the cylinder block, said body means including a metal core having resilient material on said surfaces thereof and at least one cylinder opening for surrounding the cylinder, metal inlays fixedly secured to both of said surfaces of said core and extending completely about said cylinder openings and including integral extensions extending from said cylinder openings and in engagement with said metal core for engaging the chamber insert and the cylinder block to perfect a seal therebetween.
Claim 2
Dependent Claim
152 words
A head gasket assembly adapted to be disposed between a head having a precombustion chamber therein and a cylinder block having a cylinder therein with the precombustion chamber located at least partially outside the diameter of the cylinder and with a precombustion chamber insert disposed in the head for defining the passageway between the precombustion chamber and the cylinder, said gasket comprising; body means defining two parallel surfaces adapted to engage and seal the head and the cylinder block, said body means including a metal core having resilient material on said surfaces thereof and at least one cylinder opening for surrounding the cylinder, metal inlays fixedly secured to both of said surfaces of said core and extending completely about said cylinder openings and including integral extensions extending from said cylinder openings and in engagement with said metal core for engaging the chamber insert and the cylinder block to perfect a seal therebetween.
Claim 3
Dependent Claim
54 words
An assembly as set forth in claim 1 wherein said metal inlays define coextensive circular portions directly adjacent said cylinder openings and define a diameter thereabout on both of said surfaces of said core, said integral extensions extending beyond said diameter so as to underlie the chamber insert and engage the cylinder block therebeneath.
Claim 4
Dependent Claim
20 words
An assembly as set forth in claim 2 wherein said integral extensions have at least in part a circular periphery.
Claim 5
Dependent Claim
24 words
An assembly as set forth in claim 3 wherein said inlays include at least one embossment extending completely about each of said cylinder openings.
Claim 6
Dependent Claim
40 words
An assembly as set forth in claim 4 wherein said integral extensions include embossments about said periphery of said extensions, said embossments about said diameter of said cylinder openings being continuous with said embossments about said periphery of said extensions.
Claim 7
Dependent Claim
25 words
An assembly as set forth in claim 5 wherein said metal inlays include bridge portions for integrally connecting at least two of said circular portions.
Claim 8
Dependent Claim
52 words
An assembly as set forth in claim 6 wherein each of said bridge portions of each of said metal inlays include fastening means securing each of said metal inlays to the adjacent surface of said core, said bridge portions adjacent said opposite surface of said core being devoid about said fastening means.
References Cited (Backward Citations)
US2753199A
Cited
US3191950A
Cited
US3606361A
Cited
GB1278321A
Cited
GB1501373A
Cited
US4121846A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-08-24 | 1985-02-23 | 1985-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-24 | 1989-02-23 | 1989-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-24 | 1993-02-23 | 1993-08-25 | $7700.00 | Window Closed / Lapsed |