Patents by Inventor Karl Fleck

Karl Fleck 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).

  • Cable coil holding assembly in a vacuum cleaner
    Patent number: 4701974
    Abstract: A cable coil support assembly installable in an appropriate seating space of a vacuum cleaner comprises a cable drum having a hollow hub rotatably supported on a bearing pin axially projecting from a fixed supporting wall of the assembly. The hub is provided with radially oriented openings in communication with a suction space of the vacuum cleaner, whereby cooling air is drawn between adjacent winding of an electrical cable on the cable drum. The supporting wall is provided with at least one opening enabling gaseous communication between the cavity in the hub and the suction space of the vacuum cleaner.
    Type: Grant
    Filed: October 29, 1986
    Date of Patent: October 27, 1987
    Assignee: Siemens Aktiengesellschaft
    Inventors: Gerhard Konig, Karl Fleck, Herbert Kess, Artur Weigand