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:
Mar. 03, 2020
Filed:
Jan. 06, 2018
Shimadzu Corporation, Kyoto, JP;
Tatsuhiro Taguchi, Kyoto, JP;
SHIMADZU CORPORATION, Kyoto, JP;
Abstract
A vacuum valve comprises: a housing configured such that a flow path of gas passing through a pair of opposing openings is formed; a valve body; a sealing body; a sealing body drive section configured to drive the sealing body in upstream and downstream directions of the gas; and a mechanical stopper including a restriction section configured to inhibit, at a restriction position, movement of the sealing body in the gas downstream direction. The mechanical stopper is disposed movable to a selected one of a first position at which movement of the sealing body toward a gas downstream side is inhibited at the restriction position or a second position at which movement of the sealing body from the restriction position to a non-restriction position on the gas downstream side is allowed.