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. 19, 2003
Filed:
Aug. 08, 2001
Roland Müller, Steinen, DE;
Wolfram Lütke, Inzlingen, DE;
Endress + Hauser Gmbh + Co., Maulburg, DE;
Abstract
A filling level gage operating with microwaves, for measuring a filling level of a filling material ( ) in a container ( ), is provided which functions with a single antenna ( ) constructed as simply as possible, and in which a minimum distance required for measurement between the filling material ( ) and the antenna ( ) is as small as possible, having a microwave generator ( ), and an antenna ( ) with planar antenna structure, which is used to transmit the microwaves in the direction of the filling material ( ) and to receive microwaves reflected from a filling material surface, in which the planar antenna structure has at least two transmission and/or reception elements ( , S, E).