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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.:

US 11162515 B1

PDFFull Text
Date of Patent:
Nov. 02, 2021

Filed:

May. 08, 2020

Servo valve

Applicant:

Smc Corporation, Chiyoda-ku, JP;

Inventors:

Junji Sakashita, Koshigaya, JP;

Kaname Inoue, Moriya, JP;

Hisashi Yajima, Tsukuba, JP;

Masayuki Ishikawa, Tsukubamirai, JP;

Satoru Ito, Tsuchiura, JP;

Assignee:

SMC CORPORATION, Chiyoda-ku, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Seth W Mackay-Smith

Int. Cl.
CPC ...
F15B 13/04 (2006.01); F15B 13/044 (2006.01); F15B 13/10 (2006.01); F16K 31/06 (2006.01); F16K 37/00 (2006.01); F16K 31/08 (2006.01); H01F 7/16 (2006.01); H01F 7/122 (2006.01); H01F 7/13 (2006.01);
U.S. Cl.
CPC ...
F15B 13/0402 (2013.01); F15B 13/0442 (2013.01); F15B 13/10 (2013.01); F16K 31/061 (2013.01); F16K 31/0613 (2013.01); F16K 31/082 (2013.01); F16K 37/0033 (2013.01); F16K 37/0041 (2013.01); F15B 2013/0409 (2013.01); F15B 2013/0448 (2013.01); H01F 7/122 (2013.01); H01F 7/13 (2013.01); H01F 7/1615 (2013.01); Y10T 137/8667 (2015.04);
Abstract

A servo valve has a movable element disposed inside a body, and a drive unit to slide the movable element in the axial direction. A first elastic portion on one end portion side of the body has a first elastic force to press the movable element toward the drive unit connected to another end portion of the body; a second elastic portion on another end portion side of the body has a second elastic force to press the movable element toward the one end portion side of the body. A connecting portion is connected to the second elastic portion, wherein at a neutral position of the movable element, the connecting portion abuts against an inner peripheral surface of the body and against the movable element. An end of one of the first and second elastic portions is fixed directly to the movable element, and an end of the other of the first and second elastic portions is connected to the connecting portion.

Find Patent Forward Citations

Sakashita, Junji. (2021). Servo valve (U.S. Patent No. 11162515). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11162515

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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