Patents by Inventor Edward J. Lasch

Edward J. Lasch 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).

  • Multiphase matter introduction with a plasticating screw arrangement
    Patent number: 5670112
    Abstract: The present invention comprises a method for delivering a medium such as a gas, vapor or liquid into a melted plastic in a mold via an elongated screw shaft rotatably supported in a housing, the method including the steps of providing the screw shaft with a bore longitudinally therethrough from a proximal end to a distal tip end thereof, rotating the screw shaft in the housing to move plastic therethrough, and into the mold, introducing a gas, vapor or liquid into the bore, to permit the gas, vapor or liquid to be delivered through the bore, and into the molten plastic in the mold through the distal tip end of the screw shaft.
    Type: Grant
    Filed: August 3, 1995
    Date of Patent: September 23, 1997
    Assignee: Dynamic Mixer, Inc.
    Inventors: Desider G. Csongor, Edward J. Lasch, Vineet Kapila, Nick R. Schott