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. 21, 1999
Filed:
Sep. 12, 1997
Applicant:
Inventor:
Rudolf Moller, Gehrden, DE;
Assignee:
Mannesmann Aktiengesellschaft, Dusseldorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
251 611 ; 251331 ; 251367 ;
Abstract
A diaphragm valve includes a diaphragm with a rigid insert. The diaphragm is arranged over a valve seat. The diaphragm is clamped concentrically around said valve seat. The combination of the rigid insert and the clamp enable a pressure applied an area of said diaphragm outside said clamped area to be communicated to the area of the diaphragm inside said clamped area, thereby closing or opening said valve seat.