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:
Jul. 14, 2020
Filed:
Jan. 25, 2018
Fujikin Incorporated, Osaka-shi, JP;
Tsuyoshi Tanikawa, Osaka, JP;
Keisuke Ishibashi, Osaka, JP;
Tadayuki Yakushijin, Osaka, JP;
Michio Yamaji, Osaka, JP;
Ryousuke Dohi, Osaka, JP;
Yoshinori Shimomura, Osaka, JP;
Takashi Funakoshi, Osaka, JP;
FUJIKIN INCORPORATED, Osaka-shi, JP;
Abstract
A valve element movement mechanism includes: a first valve stem having one end portion to which a first valve element to close and open an area between one of the large diameter portion and the small diameter portion is fixed; a second valve stem having one end portion to which a second valve element to close and open an area between the other of the large diameter portions and the small diameter portion is fixed; a first bellows having one end portion fixed to a first bellows flange and the other end portion fixed to the first valve element; a second bellows having one end portion fixed to a second bellows flange and the other end portion fixed to the second valve element; a frame disposed outside the main passage; and an actuator to move the frame in the directions in which valve elements are closed and opened.