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:
Jan. 17, 2017
Filed:
Feb. 28, 2013
Applicant:
Kitz Corporation, Chiba, JP;
Inventors:
Osamu Watanabe, Yamanashi, JP;
Tetsuya Watanabe, Yamanashi, JP;
Assignee:
KITZ CORPORATION, Chiba, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 5/06 (2006.01); F16K 5/22 (2006.01); F16K 27/06 (2006.01); F16K 31/60 (2006.01); F16K 5/20 (2006.01); F16K 25/00 (2006.01);
U.S. Cl.
CPC ...
F16K 5/0663 (2013.01); F16K 5/0636 (2013.01); F16K 5/0647 (2013.01); F16K 5/0657 (2013.01); F16K 5/0668 (2013.01); F16K 5/201 (2013.01); F16K 5/227 (2013.01); F16K 25/005 (2013.01); F16K 27/067 (2013.01); F16K 31/60 (2013.01);
Abstract
A trunnion ball valve includes a ball provided inside a body main unit in a freely rotatable manner; and a seal mechanism provided on positions on both sides of the ball so as to be in seal contact with the ball, the seal mechanism including: a seat retainer having a sealing surface that is to be in seal contact with a ball surface of the ball; a spring member provided for applying elastic force on a sealing surface side; and a sealing member provided on an outer surface of the seat retainer.