Method for applying a projection to a metal layer of a...

Seal for a joint or juncture – Seal between fixed parts or static contact against... – Contact seal between parts of internal combustion engine

Reexamination Certificate

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C277S593000, C277S596000

Reexamination Certificate

active

07086651

ABSTRACT:
The invention relates to the application of a projection to a metal layer of a metallic cylinder-head gasket for an internal-combustion engine having at least one elastic metal sheet, which is provided with one opening or a plurality of adjacent openings depending on the number of combustion chambers of the internal-combustion engine, a bead being provided in the at least one elastic metal sheet around each opening, at a distance from the latter, so that a straight section of sheet metal is left clear in the region of the edge of the opening, for which bead a spring travel limiter or stopper, which runs coaxially with respect to the bead and is formed by the projection, is provided, the projection being produced from a mixture which contains a plastic with a high mineral filler content. A mixture of an elastomer in particular with a filler which has been surface-treated by means of a silane is used.

REFERENCES:
patent: 5888638 (1999-03-01), Kleinhans
patent: 6173966 (2001-01-01), Noble et al.
patent: 6202877 (2001-03-01), La Torre et al.
patent: 6349945 (2002-02-01), Schmucker et al.
patent: 6354559 (2002-03-01), Eisentraut
patent: 6708892 (2004-03-01), Smith, II
patent: 34 23 286 (1986-01-01), None
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patent: 196 05 871 (1997-08-01), None
patent: 196 11 092 (1997-09-01), None
patent: 0 510 666 (1992-10-01), None
patent: 0 867 645 (1998-09-01), None
Hoffman; Werner: Kautschuk-Technologie; Stuttgart; Gentner Verlag; 1980; p. 171; ISBN 3 87247 262 3; in German.

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