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US 6,186,506 B1Granted
Method for sealing two members and gasket therefor
AssigneeIshikawa Gasket Co., Ltd.
InventorYuichi Kionoshita
Life of this patent
Estimating the term…
Abstract
A gasket is formed of a gasket body having at least one hole to be sealed, and a sealing space situated around at least a part of the hole. A heat foamable coating is disposed only in the sealing space. The gasket is installed between two members, and then, the gasket is heated to foam the foamable coating in the sealing space. Thus, the foamable coating provides a surface pressure in the sealing space by foaming to securely seal thereat.
Claims8
A gasket for sealing between two members, comprising:
- a gasket body for constituting the gasket formed of a metal plate and having at least one hole to be sealed, and a groove as a sealing space formed in the metal plate and completely surrounding the at least one hole without extending a substantial area of the gasket, and
- a heat foamed layer disposed only in the groove as the sealing space, said heat foamed layer providing a surface pressure obtained by foaming a foamable coating disposed in the sealing space when the gasket is heated to foam the foamable coating in the sealing space after the gasket is installed between the two members, said heat foamed layer in the sealing space securely sealing around the at least one hole.
A method for sealing between two members, comprising:
- preparing a gasket body having at least one hole to be sealed, and a sealing space formed in only a part of the gasket body to be situated near the hole,
- providing a heat foamable coating only in the sealing space,
- installing the gasket with the heat foamable coating between the two members, and
- heating the heat foamable coating on the gasket to foam the heat foamable coating in the sealing space to thereby form a heat foamed layer, said heat foamed layer providing a surface pressure at the sealing space obtained by foaming the heat foamable coating between the two members.
1 more element
Dependencies are inferred from the claim text.