Method of producing gasket and gasket

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United States of America Patent

PATENT NO 9845877
SERIAL NO

14808491

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method of producing a gasket in which burrs can be prevented from being formed, and a mold failure can be suppressed, and a gasket are provided. A method of producing a gasket includes: a step S1 of preparing a metal mesh member and expanded graphite; a step S2 of placing the metal mesh member around the expanded graphite in a manner that a long belt-like composite body in which the expanded graphite is enveloped by the metal mesh member is formed; a step S4 of adjusting the shapes of longitudinal end portions of the composite body in a manner that, in the short-side direction of the composite body, the width dimensions of the longitudinal end portions of the composite body are smaller than the width dimension of a longitudinal middle portion of the composite body; a step S5 of spirally winding the composite body in a manner that a tubular body in a multiply wound state in which an axial direction coincides with the short-side direction of the composite body is formed; and a step S6 of compress molding the tubular body in the axial direction of the tubular body.

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Patent Owner(s)

Patent OwnerAddress
NIPPON PILLAR PACKING CO LTDOSAKA 532-0022

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sato, Yuta Osaka, JP 77 347
Tanabe, Hiroki Osaka, JP 41 347
Yanagitake, Yuji Osaka, JP 5 11

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