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. 14, 2019
Filed:
Apr. 12, 2014
Hydac Electronic Gmbh, Saarbruecken, DE;
Mathias Leo Jirgal, Saarbruecken, DE;
Joerg Steffensky, Dillingen, DE;
Horst Mannebach, Saarbruecken, DE;
Thomas Hahn-Jose, St. Ingbert, DE;
HYDAC ELECTRONIC GMBH, Saarbruecken, DE;
Abstract
An ultrasonic displacement measurement system for hydraulic accumulators () has a movable separating element () separating two media chambers () from each other in a media-tight manner within a housing (). One media chamber () holds a compressible fluid or an incompressible fluid. The other media chamber () holds a compressible working gas. The particular position of the movable separating element () within the housing () can be detected by an ultrasonic sensor () that performs the position detection of the separating element () on the side of the media chamber () having the compressible fluid. A method for ultrasonic displacement measurement uses that system.