Patent ID: 6811157
Filing Date: 2004-11-02
Classification: F16J,F16L

Abstract:
A metallic gasket to be used for sealing between joint parts of a vacuum device, wherein the metallic gasket is to be squeezed and deformed by engagement along an abutting edge of one of said joint parts, the gasket comprising:a sealing face on the gasket, the sealing face being positioned for engagement with the abutting edge of said one of the joint parts, the sealing face forming a surface prepared to receive the abutting edge, and the sealing face having a thickness in a thickness direction; a land portion on the gasket, the land portion being located one of inside or outside of the gasket relative to the sealing face, the land portion being placed clear of engagement with the abutting edge of the joint part; wherein the land portion has a thickness in the thickness direction that is greater than the thickness of the sealing face; whereby the surface to receive the abutting edge is protected from contact prior to said engagement with said one of the joint parts.