Patents by Inventor Robert Lindsay Druschel

Robert Lindsay Druschel 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).

  • Applicator die
    Patent number: 5851566
    Abstract: An improved applicator die for alternately depositing different liquid coating materials on a moving web comprises a die body having switch bars for opening and closing respective flow passageways for supplying the different liquid coating materials to an elongated coating orifice from respective manifolds. The switch bars, flow passageways and manifolds are substantially as wide as and substantially parallel to the coating orifice of the die whereby changeover between different coating materials can be made very rapidly.
    Type: Grant
    Filed: July 2, 1996
    Date of Patent: December 22, 1998
    Assignee: Avery Dennison
    Inventors: Bert Potjer, Luigi Sartor, Robert Lindsay Druschel
  • Sealing system for improved applicator die
    Patent number: 5843230
    Abstract: An improved applicator die for alternately depositing different liquid coating materials on a moving web comprises a die body having switch bars for opening and closing respective flow passageways for supplying the different liquid coating materials to an elongated coating orifice from respective manifolds. The switch bars, flow passageways and manifolds are substantially as wide as and substantially parallel to the coating orifice of the die whereby changeover between different coating materials can be made very rapidly.
    Type: Grant
    Filed: July 2, 1996
    Date of Patent: December 1, 1998
    Assignee: Avery Dennison
    Inventors: Bert Potjer, Luigi Sartor, Robert Lindsay Druschel