Process for producing metallic gasket

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8117749
APP PUB NO 20090229106A1
SERIAL NO

11989144

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A process for producing a metallic gasket, which comprises making a thin metallic sheet into a solid figure having an inclined surface, thereby providing a bead region extended upwardly and downwardly over the inclined surface, and forming a sealing part made of a hardened rubber layer on the surface of bead region, characterized by forming a sealing part extended from the apex of the bead region down to an upperward position on the inclined surface, and another sealing part extended from a downward position on the inclined surface down to the flat bottom part, and joining the sealing parts by the rubber material in a solution state extended along the inclined surface from both of the sealing parts, before drying and hardening of the material for making sealing parts. Application of the rubber material in a solution state is carried out preferably by a screen printing process. The rubber sealing parts formed by a silk screen printing process contributes to uniformization of the layer thickness resulting from the drying and hardening.

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Patent Owner(s)

Patent OwnerAddress
NOK CORPORATION12-15 SHIBADAIMON 1-CHOME MINATO-KU TOKYO 1058585

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Funatsu, Tomonori Kikugawa, JP 2 15
Higashira, Toshihiro Fujisawa, JP 24 94
Matsumoto, Naoki Fujisawa, JP 303 9159
Nikamoto, Hiroyuki Fujisawa, JP 6 59
Oosawa, Namieki Kikugawa, JP 1 5

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