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:
Jul. 19, 2016
Filed:
Sep. 24, 2012
Applicant:
Parker-hannifin Corporation, Cleveland, OH (US);
Inventors:
Jason T. Dunn, Minneapolis, MN (US);
Mario A. Calvo, Minneapolis, MN (US);
Andrew Brenner, Pembroke, NH (US);
Kenji A. Kingsford, Tucson, AZ (US);
Assignee:
Parker-Hannifin Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F 1/84 (2006.01); F04B 43/09 (2006.01); F04B 43/04 (2006.01); F04B 43/00 (2006.01); G01F 1/38 (2006.01); G01F 15/00 (2006.01); G01L 13/02 (2006.01); G01L 13/06 (2006.01);
U.S. Cl.
CPC ...
F04B 43/09 (2013.01); F04B 43/0072 (2013.01); F04B 43/04 (2013.01); G01F 1/383 (2013.01); G01F 15/006 (2013.01); G01L 13/021 (2013.01); G01L 13/06 (2013.01);
Abstract
One or more electroactive polymer (EAP) strips are circumferentially or lengthwise embedded or mounted around the fluid passage member. The EAP strips change electrical characteristics (e.g., capacitance, resistance) independent of an applied actuation as they are stretched, so they may be used to measure fluid pressure and/or fluid flow rate.