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:
Feb. 15, 2022
Filed:
Dec. 14, 2017
Applicant:
Waterworks Technology Development Organization Co., Ltd., Osaka, JP;
Inventors:
Gou Horikawa, Osaka, JP;
Shuhei Azuma, Osaka, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 3/28 (2006.01); F16L 55/105 (2006.01); F16K 3/314 (2006.01); F16K 3/316 (2006.01);
U.S. Cl.
CPC ...
F16L 55/105 (2013.01); F16K 3/28 (2013.01); F16K 3/314 (2013.01); F16K 3/316 (2013.01);
Abstract
A gate valve includes a valve body for insertion through a through-hole formed in the fluid pipe, and a movement mechanism for moving the valve body along the diameter direction, and the valve body includes a valve main body and a seal member that is capable of undergoing elastic deformation and is provided on a holding portion of the valve main body. A core member formed from a material harder than the seal member is embedded between an outer face of the seal member, which is on the lower side in the movement direction, and a leading end face on the protruding side of the holding portion.