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:
Mar. 31, 2015
Filed:
Jul. 07, 2011
Yasuhiko Koda, Toyota, JP;
Masanori Takahashi, Toyota, JP;
Hidetoshi Kaida, Kanagawa, JP;
Kouhei Kurose, Kanagawa, JP;
Eiji Oki, Kanagawa, JP;
Yasuhiko Koda, Toyota, JP;
Masanori Takahashi, Toyota, JP;
Hidetoshi Kaida, Kanagawa, JP;
Kouhei Kurose, Kanagawa, JP;
Eiji Oki, Kanagawa, JP;
Oiles Corporation, Tokyo, JP;
Abstract
A spherical annular seal memberincludes a spherical annular base memberdefined by annular end facesand, and an outer layerformed integrally on the spherical annular base member. The spherical annular base memberincludes a reinforcing membermade from a metal wire net and a heat-resistant materialcontaining compressed expanded graphite. The outer layeris comprised of a base layerwhich includes a reinforcing membermade from a metal wire net and compressed and a heat-resistant materialcontaining expanded graphite, compressed in such a manner as to fill meshes of the metal wire net of the reinforcing member, and having a surfacewhich forms an outer-layer intermediate layer surfacetogether with the surfaceof the reinforcing member, and of a heated sliding layerof a molten fluororesin composition formed on the base layerat the outer-layer intermediate layer surface. The surfaceof the outer layerexposed to the outside is constituted by a smooth surfaceof the heated sliding layer