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. 21, 2020
Filed:
Nov. 20, 2015
Netzsch Pumpen & Systeme Gmbh, Selb, DE;
Stefan Weigl, Muehldorf am Inn, DE;
Franz Kneidl, Waldkraiburg, DE;
Thomas Schmitt, Lohkirchen, DE;
Achim Dehnz, Söchtenau, DE;
Dominik Hindera, Winhöring, DE;
Mathias Obermaier, Waldkraiburg, DE;
Markus Rosam, Aschau am Inn, DE;
Erwin Weber, Waldkraiburg, DE;
NETZSCH Pumpen & Systeme GmbH, Selb, DE;
Abstract
A method for fixing rotary pistons in a rotary piston pump and a method for dismantling rotary pistons of a rotary piston pump, where the rotary piston pump has two counter-rotating rotary arranged in a pump space on drive shafts. The rotary pistons each include a seating for the drive shafts. The respective drive shaft is arranged and fixed with an end region in the seating of the respective rotary piston. A diameter of the drive shafts in the end region can be widened elastically. In an operational state, in which the rotary pistons are arranged on the respective drive shafts, a frictional connection is formed between the respective seating of the rotary piston and the end region of the respective drive shaft.