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:
Oct. 03, 2017
Filed:
Oct. 31, 2014
Applicant:
Liebherr-elektronik Gmbh, Lindau, DE;
Inventors:
Markus Dropmann, Lindau, DE;
Alfred Engler, Sigmarszell, DE;
Assignee:
Liebherr-Elektronik GmbH, Lindau, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J 1/12 (2006.01); G01B 7/00 (2006.01); F16J 10/02 (2006.01); F15B 15/28 (2006.01);
U.S. Cl.
CPC ...
G01B 7/003 (2013.01); F15B 15/2815 (2013.01); F16J 1/12 (2013.01); F16J 10/02 (2013.01);
Abstract
The present disclosure relates to a piston-cylinder unit with a cylinder jacket and a piston rod longitudinally shiftably guided in the cylinder jacket as well as an evaluation unit which determines the position of the piston rod with respect to the cylinder jacket by the intrinsic electrical properties of an interconnection of cylinder jacket, piston rod and piston, wherein the piston rod is short-circuited against the cylinder or the cylinder head in a manner suitable for high frequencies via one or more contact elements in the region of the exit opening of the piston rod out of the cylinder head.