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:
Apr. 21, 2009
Filed:
Apr. 11, 2006
Applicant:
Gerd Mattes, Schorndorf, DE;
Inventor:
Gerd Mattes, Schorndorf, DE;
Assignee:
Karl Dungs GmbH & Co. KG, Urbach, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 31/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a gas valve arrangement having at least one main valve that has a valve closure element which is connected with a fluid-actuated drive device. A pilot valve is connected to the drive device so as to control it by a pilot fluid flow, and which has a piezoelectric actuation element for influencing the pilot fluid flow. A control device is connected with the pilot valve and acts on it with an alternating voltage so as to open the main valve.