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. 18, 2018
Filed:
Oct. 16, 2014
Applicant:
Eagle Industry Co., Ltd., Tokyo, JP;
Inventor:
Tetsuya Sato, Tokyo, JP;
Assignee:
EAGLE INDUSTRY CO., LTD., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J 15/34 (2006.01); F16B 19/02 (2006.01); F16B 33/00 (2006.01); F16B 13/08 (2006.01); F16B 5/02 (2006.01);
U.S. Cl.
CPC ...
F16J 15/3488 (2013.01); F16B 19/02 (2013.01); F16B 33/004 (2013.01); F16B 5/0258 (2013.01); F16B 13/0858 (2013.01);
Abstract
A division type mechanical seal includes a through hole portion formed over two divided sealing rings so as to go over divided contact faces of the two divided sealing rings adjacent to each other in the circumferential direction, and a coupling tool inserted into the through hole portion to couple the two adjacent divided sealing rings. The coupling tool includes a bolt, a nut, and a tube fitted to a shaft portion of the bolt, and the tube is compressed in the axial direction and expanded in the outer diameter direction when the two adjacent divided sealing rings are coupled by fastening the nut.