Patents by Inventor Heinz Lauhoff

Heinz Lauhoff 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).

  • Tensioning device for a vertical conveyor
    Patent number: 4417654
    Abstract: A vertical conveyor comprises a driving drum; a tensioning drum spaced vertically from the driving drum and supported shiftably for varying its distance from the driving drum; a vertically oriented endless carrier trained about the driving drum and the tensioning drum; a tensioning weight situated spaced from and in vertical alignment with the tensioning drum; and coupling elements situated between and in vertical alignment with the tensioning weight and the tensioning drum. The coupling elements are secured to the tensioning weight and to the tensioning drum for directly transmitting forces from the tensioning weight to the tensioning drum urging the tensioning drum vertically away from the driving drum, whereby the endless carrier is tensioned.
    Type: Grant
    Filed: May 11, 1981
    Date of Patent: November 29, 1983
    Assignee: Bernhard Beumer Maschinenfabrik KG
    Inventors: Heinz Lauhoff, Alfons Bokamp