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. 21, 2003
Filed:
Sep. 24, 2001
Applicant:
Inventors:
Guido Rutz, Gossau, CH;
Hans Peter Michael, St. Gallen, CH;
Assignee:
ITW Gema AG, St. Gallen, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01F 2/300 ;
U.S. Cl.
CPC ...
G01F 2/300 ;
Abstract
The invention relates to a level detecting system for a powder container of a powder-coating apparatus. It contains an inductive proximity sensor ( ) and an electrically insulating membrane ( ) which is displaceable to-and-fro the proximity sensor and which is fitted on its inside surface opposite the proximity sensor with a metallic element ( ) affixed to it and affecting the magnetic properties of the proximity sensor. The level detecting system operates regardless of any powder particles adhering to it.