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:
Nov. 01, 2016
Filed:
May. 26, 2015
Smc Corporation, Chiyoda-ku, JP;
SMC CORPORATION, Chiyoda-ku, JP;
Abstract
A gate valve that can suppress the deterioration of a seal member due to radicals is provided, and the seal member in the gate valve can be prevented from coming off a dovetail groove. A seal groove for attaching a seal member is formed by a first groove portion that has a rectangular cross-section and a second groove portion that is provided in the bottom wall of the first groove portion and that has a dovetail groove-like cross-section. The seal member is held in the second groove portion with part thereof protruded into the first groove portion. A valve seat that is inserted into and pulled out of the seal groove to be brought into and out of contact with the seal member is protruded from the inner surface of a partition wall in which a gate opening is provided.