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:
Sep. 04, 2001
Filed:
Mar. 07, 2000
Toshiyuki Sato, Osaka, JP;
Tamotsu Yamashita, Osaka, JP;
Hiroshi Fujisaki, Osaka, JP;
Yasuhiko Ito, Kagamihara, JP;
Koichi Nishigaki, Gifu, JP;
Suiken Technology Co., Ltd., , JP;
Abstract
The present invention provides an improved gate valve system for cutting off a fluid flowing through a pipe. The gate valve system includes a gate valve and at least one member. The gate valve includes a seal member exhibiting an elastically deformable property for sealingly contacting the inner surface of the pipe, and a support member for receiving said seal member and movable in the perpendicular direction to the flowing direction of the fluid between the outside and inside of the pipe for timely bringing said seal member into a sealing contact with the inner surface of the pipe. The at least one expansion member is deformable, but is not substantially subjected to the volume variation even under pressure. The at least one expansion member is embedded in the seal member in such a manner as to expand the seal member laterally outwardly to the inner surface of the pipe upon receiving pressure effected by the sealing contact between the seal member and the inner surface of the pipe.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile