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. 08, 2001
Filed:
Nov. 22, 1999
Wolfram Lütke, Inzlingen, DE;
Joachim Neuhaus, Steinen, DE;
Ralf Reimelt, Freiburg, DE;
Werner Thoren, Steinen, DE;
Other;
Abstract
A liquid level meter is provided for measuring a level of a liquid (,) in a container (,), which meter measures acceptably in the case of liquids with low dielectric constants, and the installation and maintenance of which are simple and cost effective. This meter comprises an electronic circuit (,), which generates electromagnetic signals in operation, a conductor (,), which projects into the container (,), along which a float (,) moves along with the level, which has at least one segment reflecting electromagnetic signals, an injector (,), which transmits the signals from the circuit (,) to the conductor (,), which conductor (,) leads the signals into the container (,) and leads out a signal reflected at the float (,) and a receiving and evaluating circuit (,), which receives the reflected signals, which determines a travel time of the signals and which ascertains the level from the travel time.