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:
Jul. 16, 2024

Filed:

Feb. 08, 2021
Applicant:

Kitz Sct Corporation, Tokyo, JP;

Inventor:

Hisanobu Iizuka, Ohta, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 7/16 (2006.01); F16K 31/60 (2006.01); F16K 35/00 (2006.01);
U.S. Cl.
CPC ...
F16K 7/16 (2013.01); F16K 31/60 (2013.01); F16K 35/00 (2013.01);
Abstract

A manually-operated diaphragm valve in which the open/close range of a valve disk can be set while compactness is maintained with a simple structure, and a sufficient flow rate at the time of full open is ensured. A valve main body () includes a valve disk () attached inside a body () and a spindle () screw-fastened to the body so as to be able to ascend and descend to cause the valve disk to make contact with and go away from a valve seat (). A handle for manually performing rotating operation of the spindle is mounted above the valve main body. A full-open position adjustment mechanism () which limits rotation of the handle on a valve-opening operation side at full open and sets an upper limit of a flow rate when the valve disk is fully open is provided near an upper portion of the valve main body.


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