Seal for a joint or juncture – Seal between fixed parts or static contact against... – Contact seal between parts of internal combustion engine
Reexamination Certificate
2007-11-13
2007-11-13
Engle, Patricia (Department: 3673)
Seal for a joint or juncture
Seal between fixed parts or static contact against...
Contact seal between parts of internal combustion engine
C277S592000, C277S593000
Reexamination Certificate
active
10504650
ABSTRACT:
A gasket includes an intermediate layer having resilient sealing beads flanked by stopper beads. The three-layer gasket, particularly designed for heavy duty racing engines, provides a relatively robust cross-section in web-areas between cylinder bore apertures. A thin bottom layer includes wrap-around flanged portions extending about cylinder bore edges of the intermediate layer to partially overlap cylinder bore aperture areas of that layer. The flanged portions may include a plurality of waves to increase forces to generate the seal. A thin top layer overlies the intermediate layer, as well as the overlapping portions of the bottom layer. In one described embodiment, the overlapping portions are limited to cylinder bore edges between cylinder bores. As a between-engine-overhaul indication of engine health, the top gasket layer is adapted via plastic deformation to form a permanent indentation in an aluminum cylinder head to signal excessive engine operation.
REFERENCES:
patent: 843394 (1907-02-01), Haynes
patent: 3843141 (1974-10-01), Kuhn
patent: 4468044 (1984-08-01), Ulmer et al.
patent: 4867462 (1989-09-01), Udagawa
patent: 5078413 (1992-01-01), Miyaoh
patent: 5255927 (1993-10-01), Miyaoh
patent: 5286039 (1994-02-01), Kawaguchi et al.
patent: 5294135 (1994-03-01), Kubouchi et al.
patent: 5306023 (1994-04-01), Udagawa
patent: 5408963 (1995-04-01), Miyaoh et al.
patent: 5460387 (1995-10-01), Miyaoh et al.
patent: 5522604 (1996-06-01), Weiss et al.
patent: 5586776 (1996-12-01), Kubouchi et al.
patent: 5642893 (1997-07-01), Udagawa
patent: 5785322 (1998-07-01), Suggs et al.
patent: 5791659 (1998-08-01), Takada et al.
patent: 5879011 (1999-03-01), Takata et al.
patent: 5951021 (1999-09-01), Ueta
patent: 6105971 (2000-08-01), Hasegawa
patent: 6164662 (2000-12-01), Uemura et al.
patent: 6457724 (2002-10-01), Ogaeri et al.
patent: 6540234 (2003-04-01), Atkinson et al.
patent: 6607830 (2003-08-01), Murakami et al.
PCT International Search Report issued Sep. 21, 2005.
Inciong Josefino T.
Johnson William A.
Dana Corporation
Engle Patricia
Lee Gilbert
Marshall & Melhorn LLC
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