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:
Aug. 28, 1984
Filed:
Aug. 20, 1982
Applicant:
Inventors:
Mistuo Yoshimura, Yamato, JP;
Akihisa Takaoka, Fujisawa, JP;
Assignee:
Nippon Oil Seal Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277144 ; 277165 ; 2771 / ; 277222 ;
Abstract
The backup ring offered by the present device is formed to be a ring-shaped body and is cut at one place thereof in the circumferential direction by a plane which is made to parallel the radius passing the central axial line of the ring-shaped body, which is inclined to the end surface of the ring-shaped body and whose point of intersection with the central axial line is located outside the ring-shaped body.