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:
Apr. 11, 2017
Filed:
Nov. 03, 2014
Netzsch Pumpen & Systeme Gmbh, Selb, DE;
Stefan Weigl, Muehldorf am Inn, DE;
Reinhard Denk, Muehldorf, DE;
Hisham Kamal, Waldkraiburg, DE;
Josef Strassl, Straubing, DE;
Robert Kurz, Aschheim, DE;
Bernhard Murrenhoff, Buchbach, DE;
Thomas Boehme, Waldkraiburg, DE;
Gunther Herr, Haarth, DE;
Franz Kneidl, Waldkraiburg, DE;
Mikael Tekneyan, Waldkraiburg, DE;
Matthias Gradl, Sesslach, DE;
Erwin Weber, Ampfing, DE;
Roger Willis, Mettenheim, DE;
Stefan Kern, Haag, DE;
Johann Kreidl, Waldkraiburg, DE;
Marcel Verhoeven, Hailsham East Sussex, GB;
NETZSCH Pumpen & Systeme GmbH, Selb, DE;
Abstract
A rotary piston pump for the delivery of liquids and for the delivery of liquids containing solids. The rotary piston pump includes a pump housing which is provided with an inlet and an outlet. The pump housing includes a lining. Disposed in the pump housing, or inside the lining, are at least two counter-rotating rotary pistons, which form pump spaces during their rotation. During the rotational movement, the rotary pistons are sealed against one another, against the pump housing and against the lining. Disposed in the pump housing and/or in the lining, in the spatial vicinity of the inlet and/or the outlet, are means with which the pulsation can be reduced or even completely prevented.