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.

Date of Patent:
Oct. 04, 2016

Filed:

Feb. 12, 2014
Applicant:

Buerkert Werke Gmbh, Ingelfingen, DE;

Inventors:

Werner Eurich, Bretzfeld, DE;

Ralf Kettemann, Neuenstein, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 11/22 (2006.01); F16K 11/20 (2006.01); F16K 31/122 (2006.01);
U.S. Cl.
CPC ...
F16K 11/20 (2013.01); F16K 31/1221 (2013.01); F16K 31/1225 (2013.01); Y10T 137/86879 (2015.04);
Abstract

A diaphragm valve for fluid control includes a valve housing having a valve chamber, into which at least three passageways open. The passageways have associated therewith valve seats provided in the valve housing. Further, the diaphragm valve for fluid control includes a diaphragm having various diaphragm sections that can be pressed against associated valve seats in order to selectively open and close flow connections between passageways. Further, the diaphragm valve for fluid control includes at least two control pistons, which are displaceably accommodated in respectively one cylinder chamber and are respectively coupled with the associated diaphragm section via a pressure transfer unit in order to move the diaphragm section, during the movement of the control piston, into an opening or closing position, wherein the cylinder chambers are located at the same axial height, so that the control pistons can be moved next to each other.


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