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:
Jan. 03, 1995
Filed:
Jan. 24, 1994
Applicant:
Inventor:
Fritz Muller, Ingelfingen, DE;
Assignee:
Gebruder Muller Apparatebau GmbH & Co. KG, Ingelfingen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
251331 ; 251229 ; 251265 ; 251284 ; 74 25 ; 74 8915 ; 7442 / ;
Abstract
A diaphragm valve includes a valve body accommodating an axial valve stem and housing a weir-type valve seat which cooperates with a diaphragm operated by a hand wheel for regulating a flow of fluid through the weir. A screw nut extends axially between the valve body and the hand wheel for limiting a closing lift of the diaphragm by impacting on the valve body. The screw nut is connected in form-fitting manner with the hand wheel so as to follow a displacement of the valve stem when turning the hand wheel for opening and closing of the valve.