Seal for a joint or juncture – Seal between fixed parts or static contact against... – Contact seal between parts of internal combustion engine
Reexamination Certificate
2008-05-20
2008-05-20
Patel, Vishal (Department: 3676)
Seal for a joint or juncture
Seal between fixed parts or static contact against...
Contact seal between parts of internal combustion engine
C277S598000
Reexamination Certificate
active
07374177
ABSTRACT:
A multilayer metal gasket, such as a multilayer steel head gasket, for an internal combustion engine has upper and lower functional layers and at least one intermediate layer. At least one of these layers has a circumferential compression control feature in the form of a protrusion or groove which varies in thickness or depth, respectively, around its circumference. The variable thickness of the compression control feature enables uniform sealing pressure on the sealing surfaces of the gasket.
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Tripathy Bhawani
Vialard Daniel J.
Dickinson Wright PLLC
Federal-Mogul World Wide Inc.
Patel Vishal
Stearns Robert L.
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