Patents by Inventor Willi Hackenberg

Willi Hackenberg 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).

  • Drive apparatus for a paraffining device
    Patent number: 4662166
    Abstract: Disclosed is a drive apparatus for a device for applying paraffin wax to yarn. In the device, a solid block of paraffin is mounted on a polyhedral bolt which is driven by a whorl or drive pulley. The whorl, in turn, is driven by a continuous drive belt. Advantageously, a plurality of similar devices are mounted on the same open-end spinning machine so adjacent devices may be driven from the same drive belt. Bracing elements hold the yarn against the rotating face of the paraffin block of each device to ensure uniform application of paraffin.
    Type: Grant
    Filed: June 20, 1985
    Date of Patent: May 5, 1987
    Assignee: Schubert & Salzer Maschinenfabrik Aktiengesellschaft
    Inventors: Rudolf Oexler, Willi Hackenberg
  • Apparatus for guiding flexible supply lines
    Patent number: 4600817
    Abstract: A mobile supply station (7) is connected by flexible supply lines (10, 11) to a stationary connection point (1). The flexible supply lines (10, 11) are supported by a guide chain (2), the surplus length of which is taken up and laid down in a loop (21) during the movement of the supply station (7). The curvature of the loop (21) is dictated by a return wheel which rolls freely upon that part of the guide chain (2) connected to the stationary connection point (1).
    Type: Grant
    Filed: November 10, 1983
    Date of Patent: July 15, 1986
    Assignee: Schubert & Salzer
    Inventor: Willi Hackenberg