The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 12, 2017
Filed:
Aug. 22, 2013
Oiles Corporation, Minato-ku, Tokyo, JP;
Atsushi Yoshida, Fujisawa, JP;
Eiji Satou, Fujisawa, JP;
Shin-ichi Shionoya, Fujisawa, JP;
Ryota Koibuchi, Fujisawa, JP;
OILES CORPORATION, Tokyo, JP;
Abstract
A spherical annular seal memberis used in an exhaust pipe joint and includes a spherical annular base memberdefined by a cylindrical inner surface, a partially convex spherical surface, large- and small-diameter side annular end facesandof the partially convex spherical surface, and an outer layerformed integrally on the partially convex spherical surfaceof the spherical annular base member. The spherical annular base memberincludes a reinforcing member made from a metal wire netand a heat-resistant material containing expanded graphite filling meshes of the metal wire netof this reinforcing member and compressed in such a manner as to be formed integrally with this reinforcing member in mixed form. In the outer layer, the reinforcing member, the heat-resistant material, and the solid lubricant are integrated in mixed form.