Patents by Inventor Helmut Epple

Helmut Epple 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).

  • Apparatus for straightening weft yarns in fabrics
    Patent number: 4987663
    Abstract: A process and apparatus for straightening weft yarns in fabrics in which a continuous fabric web is stretched over a defined longitudinal section with a force increasing in the direction of movement, essentially in the weft direction, between two marginal tensioning drums movable independently of each other in a manner such that the different forces that appear when a diagonal distortion occurs, can be compensated in the direction of movement on the tensioning drums so as to remove the distortion.
    Type: Grant
    Filed: November 8, 1989
    Date of Patent: January 29, 1991
    Assignee: Mahlo GmbH & Co. KG
    Inventor: Helmut Epple
  • Apparatus for straightening weft yarns in fabrics
    Patent number: 4899425
    Abstract: A process and apparatus for straightening weft yarns in fabrics in which a continuous fabric web is stretched over a defined longitudinal section with a force increasing in the direction of movement, essentially in the weft direction, between two marginal tensioning drums movable independently of each other in a manner such that the different forces that appear when a diagonal distortion occurs, can be compensated in the direction of movement on the tensioning means so as to remove the distortion, the tensioning means being driven to prevent the frictional forces that necessarily appear from being overcome by take-off forces in the fabric web so that no curved distortions occur.
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: February 13, 1990
    Assignee: Mahlo GmbH & Co. Kg.
    Inventor: Helmut Epple