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:
May. 27, 2014
Filed:
Sep. 03, 2010
Kyuzo Nakamura, Chigasaki, JP;
Kouji Shibayama, Chigasaki, JP;
Shinichi Wada, Chigasaki, JP;
Seiya Sakoda, Chigasaki, JP;
Kyuzo Nakamura, Chigasaki, JP;
Kouji Shibayama, Chigasaki, JP;
Shinichi Wada, Chigasaki, JP;
Seiya Sakoda, Chigasaki, JP;
Ulvac, Inc., Chigasaki-Shi, JP;
Abstract
A gate valve includes: a valve box; a support body disposed inside a hollow portion; a valve plate including a fixed valving section, a movable valving section sliding in a direction in which a flow passage is extended, a first peripheral region; and a second peripheral region; a first biasing section disposed at the first peripheral region, allowing the movable valving section to move toward a first opening portion, allowing the movable valving section to come into contact with an inner surface, pressing the movable valving section onto the inner surface, and closing the flow passage; and a second biasing section disposed at the second peripheral region, allowing the movable valving section to move toward a second opening portion, and releasing the flow passage by separating the movable valving section from the inner surface.