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. 21, 2012
Filed:
Jul. 30, 2009
Applicants:
Alfred Engler, Sigmarszell, DE;
Nejat Mahdavi, Lindau, DE;
Christian Thuerigen, Leonberg, DE;
Inventors:
Assignee:
Liebherr-Elektronik GmbH, Lindau, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01M 19/00 (2006.01); G01B 3/30 (2006.01); G01B 21/00 (2006.01); G01P 21/00 (2006.01); G01L 27/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present disclosure relates to a position measuring device for a fluidic cylinder, which includes a cylinder jacket and a piston rod longitudinally movable in the cylinder jacket, wherein the position measuring device includes an evaluation unit which determines the position of the piston rod with respect to the cylinder jacket with reference to the intrinsic capacitance of the capacitor formed by cylinder jacket, piston rod and a dielectric fluid acting as a dielectric.