Patents by Inventor Waldemar Bech

Waldemar Bech 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).

  • Cleaning device for a rotor of an open-end spinning machine
    Patent number: 5083421
    Abstract: An open-end spinning machine has a rotor with a shaft, an opening and an interior with a fiber slipping surface terminating in a fiber collecting groove in a given plane. A cleaning device for cleaning the interior of the rotor includes an arm. A rotatable shaft connected to the arm is offset relative to and disposed at an angle relative to the rotor shaft. A support on the rotatable shaft has an end on which at least one cleaning tool is disposed. The support is rotatable about the rotatable shaft with the end describing an arc cutting across the given plane for delivering the at least one cleaning tool with a forward motion through the rotor opening to a portion of the interior of the rotor to be cleaned.
    Type: Grant
    Filed: April 12, 1990
    Date of Patent: January 28, 1992
    Assignee: W. Schlafhorst AG & Co.
    Inventors: Hans Raasch, Waldemar Bech, Wilhelm Oehrl