Patents by Inventor Gudrun Do?

Gudrun Do? has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and device for determining the zero position of a yarn guide capable of cross-winding
    Patent number: 7378813
    Abstract: A system for determining a zero position of a yarn guide (25) of a textile winding device for cross-winding yarn into cheeses via a step motor (34). The yarn guide (25), acted upon by the step motor (34), is initially displaced in the direction of its zero position (NS) and positioned at a slow speed against a defined detent (15) downstream of the zero position (NS). Then, the step motor (34) is switched off, causing the rotor (41) of the step motor (34) to drop into one of two possible stop positions (RS1, RS2). Subsequently, the step motor (34) is switched on by an electrical current supply to its stator windings (20A, 20B) such that, when switched off, the rotor (41) of the step motor (34) is in the stop position (RS2) in which the yarn guide (25) is in its zero position (NS).
    Type: Grant
    Filed: January 3, 2006
    Date of Patent: May 27, 2008
    Assignee: Oerlikon Textile GmbH & Co. KG
    Inventors: Günter Scheer, Wilhelm Oehrl, Erwin Peters, Robert Geisler, Dirk Schiffers, Gudrun Doβ, Maximilian Preutenborbeck