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. 19, 2020
Filed:
Feb. 20, 2018
Applicant:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Inventors:
Tatsuhiko Goto, Kawasaki Kanagawa, JP;
Junichiro Ooga, Kawasaki Kanagawa, JP;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F15B 13/08 (2006.01); G05D 16/20 (2006.01);
U.S. Cl.
CPC ...
G05D 16/2026 (2013.01); F15B 13/0871 (2013.01); F15B 13/0814 (2013.01); F15B 2211/40553 (2013.01); F15B 2211/7128 (2013.01);
Abstract
According to an embodiment, a variable pressure device includes a channel constituting unit and a switch valve mechanism. The channel constituting unit constitutes a channel including a first regulator and second regulators that are arranged in series to the first regulator and are in parallel to one another. The switch valve mechanism selectively connects the second regulators to the first regulator. Opening areas of the second regulators are different from one another.