Patents by Inventor Karl-Heinz Roth

Karl-Heinz Roth 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).

  • Patent number: 6289703
    Abstract: A rashel machine is described for the production of a knitted fabric, especially on a double bar or multi-bar rashel machine which includes a knitting needle bar and a guide bar assemblage having several guide bars therein. The guide bar assemblage is supported on a shaft that has a rotationaL axis that can be adjusted relative to the knitting needle bar essentially in the direction of its stroke movement. According to the invention, the rotational axis is adjustable between a first position and a second position by way of an adjustment mechanism, whereby in a first position a threading-in of a thread into the hole of the guide needle is easily possible even with guide bars lying on the inside without having to disconnect the guide bars lying on the outside of the guide bar assemblage.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: September 18, 2001
    Assignee: Liba Maschinenfabrik GmbH
    Inventors: Edgar Kress, Karl-Heinz Roth
  • Patent number: 5850982
    Abstract: The invention relates to a device for the winding of a knitted material web which is being delivered from a warp knitting machine to a material roll by using an axial drive which is being regulated by sensors which measure the tension in the material web. For the purpose of winding a knitted elastic material, a spreader roller is arranged adjacent to the run-on site of the web onto the material roll and is held there with a constant gap. In order to maintain an essentially constant gap between the spreader roller and the material roll, the spreader roller undergoes a relative shifting along a radial guide.
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: December 22, 1998
    Assignee: Liba Maschinen Fabrik GmbH
    Inventors: Karl-Heinz Roth, Rudi Wirth