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:
Jun. 27, 2017
Filed:
Nov. 13, 2015
Applicant:
Shimadzu Corporation, Kyoto, JP;
Inventor:
Tatsuhiro Taguchi, Kyoto, JP;
Assignee:
Shimadzu Corporation, Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 3/06 (2006.01); F16K 51/02 (2006.01); F16K 3/10 (2006.01); F16K 3/20 (2006.01);
U.S. Cl.
CPC ...
F16K 51/02 (2013.01); F16K 3/06 (2013.01); F16K 3/10 (2013.01); F16K 3/207 (2013.01);
Abstract
A vacuum valve includes a valve opening and a valve plate that opens and closes the valve opening. A part of an edge of the valve opening is a wedge edge portion having a wedge shape projected outward. The wedge edge portion is provided in a region where the valve plate starts to open the valve opening when the valve plate is moved to open the valve opening.