Patents by Inventor Frank Handle

Frank Handle 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).

  • Kneading device for clay and similar materials
    Patent number: 4005855
    Abstract: A kneading device for clay and similar materials in which a frame has a horizontal shaft rotatable therein with at least one radially offset kneading member. The frame includes an upwardly concave reaction member concentric with the shaft. The reaction member has a circumferential portion which is perforated and which can be replaced by another such member having different perforations therein. The circumferential portions, or shells, are supported in the frame by respective curved rocker elements disposed therebeneath.
    Type: Grant
    Filed: September 11, 1974
    Date of Patent: February 1, 1977
    Assignee: Karl Handle & Sohne, Maschinenfabrik und Eisengiesserei
    Inventor: Frank Handle