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:
Aug. 16, 2016
Filed:
Dec. 06, 2012
Wighard Jäger, Spardorf, DE;
Karl-friedrich Pfeiffer, Erlangen, DE;
Claus Weber, Fürth, DE;
Continental Automotive GmbH, Hannover, DE;
Abstract
A fill level sensor for detecting the fill level of a liquid in a container includes an ultrasonic transceiver, an inner tube for arrangement inside the container, the inner tube being arranged above the ultrasonic transceiver such that a liquid present in the container forms a liquid column in the inner tube the level of which can be detected by the ultrasonic transceiver, an outer tube surrounding the inner tube, and a cap which covers the inner tube and the outer tube toward the top. The cap has an inner tubular section adjoining the inner tube, an outer tubular section adjoining the outer tube, an inner vent opening for the inner tubular section and an outer vent opening for the outer tubular section.