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. 04, 2020
Filed:
Jul. 03, 2017
Applicant:
Hamilton Sundstrand Corporation, Charlotte, NC (US);
Inventors:
Daniel Kuehn, Roscoe, IL (US);
Stephen Michael Bortoli, Roscoe, IL (US);
Assignee:
Hamilton Sundstrand Corporation, Charlotte, NC (US);
Primary Examiner:
Int. Cl.
CPC ...
F15B 21/045 (2019.01); F15B 15/22 (2006.01); F15B 15/14 (2006.01); B64D 41/00 (2006.01);
U.S. Cl.
CPC ...
F15B 15/22 (2013.01); B64D 41/007 (2013.01); F15B 15/149 (2013.01); F15B 21/045 (2013.01);
Abstract
A ram air turbine (RAT) actuator includes a housing and a piston in operable communication with the housing and at least one damping orifice in operable communication with the housing and the piston, a flow area of the at least one damping orifice being alterable to adjust damping of movement between the piston and the housing in response to changes in viscosity of a fluid related to temperature.