Patents by Inventor Gert Luthar Hartwig

Gert Luthar Hartwig 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).

  • Vertical mixer
    Patent number: 5803375
    Abstract: There is provided a new and useful method and apparatus for use in the cutting, processing and discharge of material. The apparatus comprises a container having a first cutter driven about a vertical axis by a first motor, a housing radially open to the container having a second cutter driven by a second motor which second cutter rotates in the same direction as the first cutter and which second cutter protrudes radially into the container and discharge means for selectively discharging processed material from the container.
    Type: Grant
    Filed: March 25, 1996
    Date of Patent: September 8, 1998
    Assignee: Alteen Distributors Ltd.
    Inventor: Gert Luthar Hartwig