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.

Date of Patent:
Aug. 02, 2016

Filed:

Apr. 10, 2014
Applicant:

Woodward, Inc., Fort Collins, CO (US);

Inventors:

Carthel Baker, Oregon, IL (US);

Adam Kurzynski, Huntley, IL (US);

Assignee:

Woodward, Inc., Fort Collins, CO (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F15B 13/044 (2006.01); F15B 9/08 (2006.01); F15B 13/043 (2006.01);
U.S. Cl.
CPC ...
F15B 13/0438 (2013.01); F15B 9/08 (2013.01); F15B 13/044 (2013.01);
Abstract

A servo valve includes a valve housing, a piston cylinder disposed in the housing, a piston disposed within the piston cylinder and fluidly connected on a first end to a first fluid pressure pathway and on a second end to a second fluid pressure pathway, a flapper assembly, and a flow control element disposed in the piston cylinder in a portion of the first fluid pressure pathway. The piston is configured to translate axially within the piston cylinder in response to a pressure differential between the first fluid pressure pathway and the second fluid pressure pathway. The fluid flow control element is configured to stop a flow of fluid through the first fluid pressure pathway when the piston engages the third fluid control element.


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