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:
Jan. 26, 2021
Filed:
Jul. 15, 2019
Applicant:
Ebara Corporation, Tokyo, JP;
Inventor:
Tsutomu Karimata, Tokyo, JP;
Assignee:
EBARA CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 3/02 (2006.01);
U.S. Cl.
CPC ...
F16K 3/0218 (2013.01);
Abstract
A gate valveincludes: a platehaving an opening portion; a platelocated opposite to the plate; a guide spaceformed between the plates; and a plateprovided in the space. The plateis slidable along a direction in which an opening portionis offset from the opening portionin the spacein a state in which the plateis pressed by the pressing portionand separated from the plate, and a position of the plateis fixed with respect to the platein the spacein a state in which the plateis pressed by the pressing portionand is in contact with the plate. The pressing portionseach have a bellows structure formed by diffusion-bonding metal platesandto each other.