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:
Apr. 07, 2020
Filed:
Oct. 03, 2017
Ulvac, Inc., Chigasaki-shi, JP;
Shinichi Wada, Chigasaki, JP;
Hideaki Inoue, Chigasaki, JP;
Harukuni Furuse, Chigasaki, JP;
Takuya Wade, Chigasaki, JP;
Jirou Endo, Chigasaki, JP;
Mikiya Suzuki, Chigasaki, JP;
Shinnosuke Tokuhira, Chigasaki, JP;
ULVAC, INC., Chigasaki-shi, JP;
Abstract
A gate valve of the invention includes a valve box, a neutral valve body, and a rotation shaft. The neutral valve body includes a neutral valve and a movable valve. The movable valve includes a first movable valve and a second movable valve. The gate valve includes a plurality of first force-applying units, a second force-applying unit, and a third force-applying unit. The third force-applying unit applies a force to the first movable valve. The first force-applying units apply a force to the first movable valve and thereby causing the seal portion to be in close contact with a valve box inner surface located at a periphery of the first opening portion. The second force-applying unit drives the first movable valve and the second movable valve so that thicknesses thereof in the flow passage direction are adjustable.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile