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:
Oct. 29, 2002
Filed:
Feb. 18, 2000
Peter Buhl, Weingarten, DE;
Walter Reichart, Fronreute, DE;
ifm electronic GmbH, Essen, DE;
Abstract
A heat transfer monitoring and/or measuring device, especially a flow indicator for media flowing through a pipe ( ), tank or fitting, with a sensor housing ( ) and with two sensor elements ( ), the sensor elements ( ) each having a metallic sensor surface ( ) which comes into contact with the flowing medium. In the flow indicator, the problem “deposition or formation” of disruptive layers on the sensor surfaces ( ) of the sensor elements ( ) is solved by the element ( ) which is made as a heating element having an electrically conductive protective lead ( ) and by the protective lead ( ) forming a closed protective circuit which includes the pipe ( ), tank, or the fitting, the flowing medium and the sensor element ( ).