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:
Jun. 15, 2021

Filed:

Jul. 11, 2019
Applicant:

Hamilton Sundstrand Corporation, Charlotte, NC (US);

Inventors:

Marcin Cis, Lutynia, PL;

Piotr Sawicki, Bogdaniec, PL;

Assignee:

HAMILTON SUNSTRAND CORPORATION, Charlotte, NC (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 13/16 (2006.01); F15B 13/04 (2006.01); F15B 13/043 (2006.01);
U.S. Cl.
CPC ...
F15B 13/16 (2013.01); F15B 13/0402 (2013.01); F15B 13/0438 (2013.01);
Abstract

The disclosure provides a method of securing a feedback spring relative to a spool of a servovalve, the method comprising inserting the feedback spring at least partially into an internal cavity of the spool, inserting two fixing members into the internal cavity such that they each oppose a portion of the feedback spring, bringing the fixing members into respective set positions, such that the fixing members clamp the feedback spring and prevent relative movement between the feedback spring and the spool, and securing the fixing members in their respective set positions, such that the fixing members remain in their clamping positions and prevent relative movement between the feedback spring and the spool.


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