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:
Dec. 22, 2020
Filed:
Apr. 29, 2016
Dürr Systems Ag, Bietigheim-Bissingen, DE;
Frank Herre, Oberriexingen, DE;
Manfred Michelfelder, Höpfigheim/Steiheim, DE;
Michael Baumann, Flein, DE;
Rainer Melcher, Oberstenfeld, DE;
Thomas Buck, Sachsenheim, DE;
Dürr Systems AG, Bietigheim-Bissingen, DE;
Abstract
The disclosure relates to a needle valve for controlling a fluid flow of a coating agent (H, SL) in a painting system, particularly for controlling a fluid flow of a two-component mixture consisting of two coating agent components (H, SL), particularly a two-component paint made from a master batch (SL) and a curing agent (H), comprising a valve seat () and a displaceable valve needle () with a needle stem and a valve head (), wherein the valve head () closes the valve seat () in a closed position of the valve needle (), while the valve head () opens the valve seat () in an opened position of the valve needle (). The disclosure provides a flexible membrane () which surrounds the valve needle () annularly and in a sealing manner upstream before the needle head ().