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US 2008/0164661 A1Published application
Metal gasket and mis-assembly detection method of metal gasket
AssigneeIshikawa Gasket Co., Ltd.
InventorToshihiro Imai
Life of this patent
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Abstract
A metal gasket includes at least three metal plates including first, second and third metal plates laminated in this order from a top to form the metal gasket. Identification marks are provided on at least second and third metal plates in a position not to overlap with one another, and penetration windows are formed in at least the first and second metal plates. The penetration windows are arranged to see the identification mark therethrough located lower than the metal plate where the penetration window is formed.
Claims9
A metal gasket comprising:
- at least three metal plates including first, second and third metal plates laminated in this order from a top to form the metal gasket,
- identification marks provided on at least second and third metal plates in a position not to overlap with one another, and
- penetration windows formed in at least the first and second metal plates, said penetration windows being arranged to see the identification mark therethrough located lower than the metal plate where the penetration window is formed.
Dependencies are inferred from the claim text.