Patent · US Active

Stator system

US8007259B2 · kind B2 · utility

3Cited by

2References

6Claims

0Family size

Assignee

NETZSCH Mohnopumpen GmbH · DE

Inventors

Johann Kreidl · Waldkraiburg, DE
Hisham Kamal · Waldkraiburg, DE
Mikael Tekneyan · Waldkraiburg, DE
Michael Robby · Dahme/Mark, DE
Helmuth Weber · Aschaffenburg, DE

Key dates

Filing date	Sep 8, 2006
Grant date	Aug 30, 2011
Priority date	—
Expiry date	Jun 21, 2028

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04C2/1075
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention relates to an eccentric screw pump and a method for its operation. Unlike the previously known prior art, where changes to the internal geometry of the pump stator caused by wear were always remedied with radially acting clamping measures, the invention is based on bringing this about by a change in the length of the lining.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.