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. 27, 2013
Filed:
Mar. 11, 2010
Christian Hunnekuhl, Osnabrueck, DE;
Juergen Stumpp, Klettgau, DE;
Joerg Hunnekuhl, Jestetten, DE;
Walter Bannwarth, Lauchringen, DE;
Christian Hunnekuhl, Osnabrueck, DE;
Juergen Stumpp, Klettgau, DE;
Joerg Hunnekuhl, Jestetten, DE;
Walter Bannwarth, Lauchringen, DE;
Georg Fischer Rohrleitungssysteme AG, Schaffhausen, CH;
Abstract
Diaphragm valve () comprising a housing upper part (), which receives an actuating device () for actuating the valve (), and a housing lower part (), which has a receiving region () for receiving a diaphragm (), wherein in the housing lower part () below the diaphragm () a central region forming a flow channel () is designed, wherein the cross-sectional surface of the flow channel () in the central region () of the housing lower part () is constant when the valve () is in the open state.