Patent US4501432A successfully refreshed from Google Patents.
US4501432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cylinder-head cover gasket
Assignee: Toyoda Gosei Co Ltd
•
Filing: 1984-03-15
•
Granted: 1985-02-26
•
Expires: 2004-03-15
Abstract
Abstract A cylinder-head cover gasket being inserted to the sealing groove with a wedge shaped space defined by two plates of a cylinder-head cover has a upper projecting portion, which is engaged with the wedge shaped space of the sealing groove. The whole space of the groove is filled with the gasket, so that the gasket does not run off to the wedge shaped space, resulting in the improved sealing.
Inventors
- 👤 Toru Kuniyoshi
- 👤 Ryoji Okumoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:41
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/021; F16J15/022; F02; F02F; F02F7/00; F02F7/006
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
128 words
In a cylinder head cover provided with a peripheral gasket-receiving groove, generally square-shaped in section except for the bottom thereof, defined by two plates, one of which is straight, in section, in its groove-defining part and the other of which converges toward the one to form a wedge-shaped space adjacent the one plate at the bottom of the groove, the combination of a resilient gasket having a portion generally conforming to the square-shaped portion of the groove and having a portion somewhat triangular in section projecting into said space, whereby on compression of said gasket against a cylinder head the entire groove is filled by said gasket so that strong compression thereof is maintained and the seal between said gasket and the cylinder head is strong and effective.
Claim 2
Dependent Claim
128 words
In a cylinder head cover provided with a peripheral gasket-receiving groove, generally square-shaped in section except for the bottom thereof, defined by two plates, one of which is straight, in section, in its groove-defining part and the other of which converges toward the one to form a wedge-shaped space adjacent the one plate at the bottom of the groove, the combination of a resilient gasket having a portion generally conforming to the square-shaped portion of the groove and having a portion somewhat triangular in section projecting into said space, whereby on compression of said gasket against a cylinder head the entire groove is filled by said gasket so that strong compression thereof is maintained and the seal between said gasket and the cylinder head is strong and effective.
Claim 3
Dependent Claim
33 words
The combination according to claim 1 wherein the gasket has a portion projecting out of the groove that is wider in cross section than those portions of said gasket received within said groove.
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) | 1988-02-26 | 1988-08-27 | 1989-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-26 | 1992-08-27 | 1993-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-26 | 1996-08-27 | 1997-02-26 | $7700.00 | Window Closed / Lapsed |