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:
Jul. 14, 1981
Filed:
Aug. 27, 1979
Hitoshi Mizutani, Aichi, JP;
Zenji Nakajima, Toyota, JP;
Yoshito Horikiri, Toyota, JP;
Hiroshi Harada, Takaishi, JP;
Yasushi Yokotsuji, Hirakata, JP;
Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota, JP;
The Toyo Rubber Industry Co., Ltd., Osaka, JP;
Abstract
A boot for covering the juncture between a drive shaft and a universal joint casing formed of a resilient material and having a small end portion and a large end portion with a bellows structure therebetween. The bellows has undulations with ridges and valleys with ridge angles determined such that contact between adjacent undulations when the boot is operatively connected is confined to a plane. Preferably, the thickness of the resilient material is greater in a longitudinally center portion than in the remaining portions of the bellows and the distance between neighboring ridges in the central portion is greater than in the remaining portions.