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.

Date of Patent:
Aug. 22, 2017

Filed:

Nov. 07, 2013
Applicant:

Kitz Sct Corporation, Tokyo, JP;

Inventor:

Yasuhito Yamada, Gunma, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 1/22 (2006.01); F16K 31/54 (2006.01); F16K 31/524 (2006.01); F16K 1/226 (2006.01); F16K 51/02 (2006.01); F16K 1/228 (2006.01);
U.S. Cl.
CPC ...
F16K 1/226 (2013.01); F16K 1/221 (2013.01); F16K 1/228 (2013.01); F16K 31/524 (2013.01); F16K 31/54 (2013.01); F16K 51/02 (2013.01);
Abstract

A butterfly pressure control valve including a valve opening/closing mechanism () which includes: a valve body () rotatable in a direction perpendicular to a channel () in a body; a sheet ring () which can move a valve-seat sealing part toward and away from the valve body by making reciprocating movements in a direction of the channel; a cam mechanism () which separates the sheet ring () from the valve body () and rotates the valve body; and a reciprocating movement mechanism () which causes the sheet ring () to make reciprocating movements in a direction of the valve body, wherein the valve opening/closing mechanism () is an opening/closing mechanism which controls pressure in the channel () by rotating the valve body () without sliding with the sheet ring ().


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