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. 04, 2007
Filed:
Nov. 24, 2004
Takenori Ohshita, Osaka, JP;
Eiichi Imazu, Osaka, JP;
Takenori Ohshita, Osaka, JP;
Eiichi Imazu, Osaka, JP;
Toyo Tire & Rubber Co., Ltd., Osaka, JP;
Abstract
A joint boot, wherein sealing performance of a large-diameter attachment part to an outer casing is enhanced, includes a large-diameter attachment part, a small-diameter attachment partand a bellows part. The large-diameter attachment partis provided on its inner periphery with plural convex portionsand constructed to be capable of externally fitting in plural recessed portionsformed on the outer periphery of the outer casing. The large-diameter attachment partand the bellows part are formed in separate bodies, and a fit cylinder partis extended at one extremity of the bellows part. The convex portionsinclude each an inner wall portionjutting radially inwardly in a curved form, an outer wall portionin an arc form constituting part of the outer periphery surface of the large-diameter attachment part, a central strut wallA connecting both in the circumferential middles of both, and a pair of lateral strut wallsB,B connecting the inner and outer wall portions on both sides of the central strut wall, thereby forming four relief holesA,A,A,A circumferentially juxtaposed on the convex portions.