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:
Oct. 06, 2020
Filed:
Jul. 17, 2015
Applicant:
Ntn Corporation, Osaka, JP;
Inventors:
Kyohei Sasanuma, Shizuoka, JP;
Takayuki Norimatsu, Shizuoka, JP;
Naoshi Hattori, Shizuoka, JP;
Takahide Saito, Shizuoka, JP;
Hiroshi Kawamura, Shizuoka, JP;
Assignee:
NTN CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 11/07 (2006.01); F16K 31/50 (2006.01); F16H 25/22 (2006.01); F16H 63/06 (2006.01); F16K 31/53 (2006.01); F16K 31/04 (2006.01); F16H 61/02 (2006.01); B60W 10/04 (2006.01); B60W 10/101 (2012.01); F15B 13/04 (2006.01); F16K 11/065 (2006.01); F16H 63/30 (2006.01); F16H 25/20 (2006.01); F16H 61/66 (2006.01);
U.S. Cl.
CPC ...
F16H 63/062 (2013.01); B60W 10/04 (2013.01); B60W 10/101 (2013.01); F15B 13/0402 (2013.01); F16H 61/0251 (2013.01); F16K 11/065 (2013.01); F16K 11/07 (2013.01); F16K 31/04 (2013.01); F16K 31/50 (2013.01); F16K 31/53 (2013.01); F16H 25/2204 (2013.01); F16H 61/66 (2013.01); F16H 2025/204 (2013.01); F16H 2025/2087 (2013.01); F16H 2061/0253 (2013.01); F16H 2063/3063 (2013.01);
Abstract
A spool valve includes a spool in a spool insertion hole defined in a valve body. The spool is configured to be moved by an electric motor via a ball-screw to a first position where an input port is in communication with an output port, while the output port is not in communication with a drain port, and to a second position where the input port is not in communication with the output port, while the output port is in communication with the drain port.