Patents by Inventor Ferdinand Althausen

Ferdinand Althausen 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).

  • Apparatus for continuous production of elongated foam plastics blocks
    Patent number: 3942925
    Abstract: Continuous foam blocks with rectangular cross-section are produced on a side-limited conveyor band by feeding a foamable mixture to a cover foil travelling with said conveyor band and covering the free surface of the mixture with a bearing layer not earlier than immediately after the supply of the mixture and not later than before the zone in which a skin would be formed on the free surface of the block.
    Type: Grant
    Filed: May 1, 1972
    Date of Patent: March 9, 1976
    Assignee: Maschinenfabrik Hennecke GmbH
    Inventors: Willi Schmitzer, Reiner Raffel, Ferdinand Althausen, Ferdinand Proksa