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:
Sep. 02, 2003
Filed:
Sep. 20, 2002
Stefan Burger, Reinsdorf, DE;
Klaus-Peter Oberle, Weilheim, DE;
Endress + Hauser GmbH + Co. KG, Maulburg, DE;
Abstract
The invention relates to a device for determining the fill level of a filling substance in a container. The device includes a signal generator unit which generates high-frequency signals, a transmitter/receiver pair which transmits the signals via an antenna and receives the signals which have been reflected on the surface of the filling substance. A coaxial line is also included which has an inner conductor and an outer conductor for bearing the signals, and an evaluation unit which determines the fill level in the container using the transit time of the signals. The antenna has a wave duct which is delimited by a rear wall. A send line is provided on the rear wall of the wave duct, which runs substantially within the wave duct, whereby a first end section of the send line is connected to the inner conductor of the coaxial line.