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:
Feb. 27, 2018
Filed:
Apr. 15, 2016
Applicant:
Smc Corporation, Chiyoda-ku, JP;
Inventor:
Katsushi Hatano, Tsukubamirai, JP;
Assignee:
SMC CORPORATION, Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
F15B 13/043 (2006.01); F16K 11/07 (2006.01); F16K 31/124 (2006.01); F16K 31/42 (2006.01);
U.S. Cl.
CPC ...
F16K 11/07 (2013.01); F16K 31/124 (2013.01); F16K 31/426 (2013.01); Y10T 137/86614 (2015.04);
Abstract
A flow passage switching unit includes a valve body in which plural ports are formed, a spool arranged slidably in axial directions in the interior of the valve body, a spool drive unit for driving the spool in an A direction, a biasing mechanism that is configured to bias the spool elastically in the interior of the valve body, and a piston section that exerts a force on the spool in a B direction based on the pressure of a first output port.