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:
May. 14, 1991
Filed:
Jun. 07, 1990
Applicant:
Inventor:
Susumu Uchida, Susono, JP;
Assignees:
Keeper Co., Ltd., Tokyo, JP;
NTN Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
464175 ; 2772 / ;
Abstract
A flexible boot for universal joints including a joint body having an inner ring fixed to one end of a first shaft and an outer ring provided on one end of a second shaft comprises both ends fixed to the outer ring and to the first shaft, respectively, and a bellows portion positioned between the both ends and having at least one valley. There is provided at least one elastic holder ring closely contacted with an outer peripheral surface of the at least one valley to prevent acute folding of the valley of the flexible boot.