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:
Aug. 11, 2015
Filed:
Apr. 30, 2014
Saurer Germany Gmbh & Co. KG, Remscheid, DE;
Jurgen Meyer, Aachen, DE;
Maximilian Preutenborbeck, Monchengladbach, DE;
Michael Spitzer, Korschenbroich, DE;
Heinz-Georg Wassenhoven, Monchengladbach, DE;
Saurer Germany GmbH & Co. KG, Remscheid, DE;
Abstract
A method for operating an open-end rotor spinning machine having a plurality of workstations, usually a large number, each including a spinning device with a rotor housing, to which negative pressure can be applied, in which a spinning rotor () revolves at a high rotational speed, to produce a yarn, as well as a winding device to produce a cross-wound bobbin (), wherein the connection of the workstations to a central negative pressure supply can be selectively switched off. The application of negative pressure to the rotor housing is limited to the spinning devices which are producing yarn as well as the spinning devices which are repiecing.