Patents by Inventor Ernst Schollkopf

Ernst Schollkopf 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).

  • Patent number: 5192388
    Abstract: A substrate web (1), which is to be laminated on both sides with laminating webs (10) and (18), is brought together with and joined to a laminating web (10) coated with an adhesive film (8) in a roller gap (2) formed by two counterrollers (3) and (4). The other side of the substrate web (1) receives an adhesive film (9) from the second counterroller (4) in the roller gap (2). The second laminating web (18) is brought together with and bonded to the side of the substrate web (1), which side is coated with the adhesive film (9), in a roller gap (16) formed by a first laminating roller (15) and a second laminating roller (17).
    Type: Grant
    Filed: April 16, 1991
    Date of Patent: March 9, 1993
    Assignee: Maschinenfabrik Polytype A.G.
    Inventors: Ernst Schollkopf, Walter Rimmele, Roland Stiwitz, Konrad Vogel
  • Patent number: 4498946
    Abstract: An apparatus for manufacturing a sandwich web comprises first and second rotatable applicator rollers which are mounted so as to form an adjustable first roller nip therebetween adjacent adhesive applicator means which applies a film of adhesive to each of the applicator rollers for coating on respective sides of a substrate web. The apparatus includes a pivotal arm which contains a first laminating roller which forms a nip with the first applicator roller so that a laminating web may be fed thereover to engage the adhesive on one side of the substrate. In addition, a second laminating roller is contained by the pivotal arm and it may be brought into association with the first laminating roller to form a third roller nip so that a second liner may be laminated to the adhesive on the opposite face of the substrate.
    Type: Grant
    Filed: August 26, 1983
    Date of Patent: February 12, 1985
    Assignee: Polytype AG
    Inventors: Ernst Schollkopf, Walter Rimmele
  • Patent number: 4245583
    Abstract: A viscous coating such as ink or material for surfacing a medium is transferred under pressure from a pressure chamber within a wetting container through a regulating opening and impinges on the surface of a transfer roller in such manner that the flow from the regulating opening is counter to the direction of rotation of the applicator roller. The required quantity of viscous coating medium on the applicator roller is transferred directly onto either a medium conveyor, a printing form or an inking roller.
    Type: Grant
    Filed: December 15, 1978
    Date of Patent: January 20, 1981
    Assignee: Polytype AG
    Inventors: Ernst Schollkopf, Walter Rimmele, Hans Skultety, Eduard Ortner