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:
May. 12, 2015
Filed:
Jan. 11, 2012
Rodolphe DE Maglie, Lindau, DE;
Alfred Engler, Sigmarszell, DE;
Ralf Cremer, Lindau, DE;
Hans-peter Lavergne, Trunkelsberg, DE;
Rodolphe de Maglie, Lindau, DE;
Alfred Engler, Sigmarszell, DE;
Ralf Cremer, Lindau, DE;
Hans-Peter Lavergne, Trunkelsberg, DE;
Liebherr-Elektronik GmbH, Lindau, DE;
Abstract
The present disclosure relates to a piston-cylinder unit with a device for determining position, the device comprising at least one exciter that is indirectly or directly electrically connected with the cylinder jacket and the cylinder piston of the piston-cylinder unit, and that excites the electrical oscillating circuit formed by the piston-cylinder unit and the contact lines to oscillate at its resonant frequency, it being possible to measure an electrical signal characterizing the resonant frequency on the piston-cylinder unit. The invention also relates to a construction machine or piece of hoisting equipment with such a piston-cylinder unit.