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:
Nov. 01, 2022

Filed:

Dec. 13, 2019
Applicant:

Kitz Corporation, Chiba, JP;

Inventors:

Tetsuya Kobayashi, Chino, JP;

Yuri Kobayashi, Chino, JP;

Assignee:

KITZ CORPORATION, Chiba, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 3/12 (2006.01); F16K 27/04 (2006.01); F16K 3/02 (2006.01);
U.S. Cl.
CPC ...
F16K 3/12 (2013.01); F16K 3/0254 (2013.01); F16K 27/047 (2013.01);
Abstract

A wedge-shaped gate valve with a branching part formed to be open in a direction orthogonal to an inner flow path of a valve box having a coupling part on both sides, and a valve disk ascends and descends from the branching part via a valve stem to open and close an annular valve seat surface. At a boundary between the coupling part and the branching part, a reinforcing thickened part having a cylindrical, cone, or truncated cone shape with a diameter gradually reducing from the branching part toward the coupling part side is provided, and the thickened part is formed by taking, as an outer shape, a cylinder, a cone, or a truncated cone with an axis Pthat is eccentric from a center line Pof the flow path to the branching part side and is parallel to or crossing the center line Pas a rotation axis.


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