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:
Sep. 14, 2004
Filed:
Jul. 18, 2002
Peter Kuhn, Weinheim, DE;
Frank Obrist, Dornbirn, AT;
Stefan Kroess, Dornbirn, AT;
Georg Weber, Offenbach, DE;
Other;
Abstract
The pressure relief valve has a spring pressure-loaded diaphragm closing body ( ), which in the closed position sealingly engages on a centrally positioned valve seating surface ( ) surrounding a first valve opening ( ). Its spring pressure loading takes place by means of a counterpressure body ( ) positioned centrally over it. The valve seating surface ( ) is surrounded by a channel-like valve chamber ( ) in the valve housing body ( ) and on which is provided on the overpressure side at least one second valve opening ( ). To be able to dissipate high overpressures, the counterpressure body ( ) is surrounded by a diaphragm support ring ( ) held on the valve housing ( ) and which has a circumferential recess ( ), whose depth measured perpendicular to the diaphragm closing body ( ) determines the maximum deflection of said body ( ), so that when the valve is completely opened the diaphragm closing body ( ) is supported in an area between the valve seating surface ( ) and its outer edge.