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. 25, 2001
Filed:
Apr. 27, 2000
Applicant:
Inventors:
Assignee:
Showa Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D 3/84 ;
U.S. Cl.
CPC ...
F16D 3/84 ;
Abstract
A universal joint (,) is provided with a boot (,) which has one end fitted to the inner element (,) and the other end fitted to the outer element (,) so as to seal between the inner element (,) and the outer element (,). The boot (,) is constituted by a flexible boot main body (,) and an adapter (,). During fitting between the outer element (,) and the adapter (,), an inside of the boot (,) and the open air are communicated with each other via a communication passage formed by a communication groove (,) of the adapter (,), and pressure of air within the boot (,) is kept at the same pressure as that of the open air.