Patents by Inventor Wolf-Dieter Knorrich

Wolf-Dieter Knorrich 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: 5356028
    Abstract: A pre-glued, flat folding box contains a section of tubular film (5) glued to the box to form an inner bag. The tubular film section has bending lines (8,9) in all four corners of the body of the folding box which extend to the edges of the section of tubular film. This makes it easier to erect the folding box containing the section of tubular film and to fill and close the package.
    Type: Grant
    Filed: February 9, 1993
    Date of Patent: October 18, 1994
    Assignee: Carl Edelmann GmbH
    Inventors: Erich Heuberger, Wolf-Dieter Knorrich
  • Patent number: 5314088
    Abstract: There is provided a cardboard packaging for liquids which consists of a folding box, an inner bag arranged therein and made from a plastic material, and of a withdrawal nozzle which is accessible from the outside through a hole formed in one wall of the folding box. The withdrawal nozzle comprises a base plate which is welded or bonded in liquid-tight fashion to the bag at the inner side of said bag in a weldless area thereof. The inner bag is only bonded to and easily detachable from the folding box wall that includes the hole for the withdrawal nozzle, but, apart from this, is not bonded to the walls of the folding box. The withdrawal nozzle is therefore secured against rotation, and the bag is sufficiently fixed in the folding carton. In addition, it can easily collapse during emptying, and the packaging can be easily disassembled into its cardboard and plastic parts after use (FIG. 2 ).
    Type: Grant
    Filed: April 22, 1992
    Date of Patent: May 24, 1994
    Assignees: The Coca-Cola Company, Carl Edelmann GmbH
    Inventors: Erich Heuberger, Wolf-Dieter Knorrich, Joachim W. Dziallas, George Plester, Georg Troska
  • Patent number: 5048691
    Abstract: A container with an inner pouch includes an outer cardboard shell with interconnected bottom and top flaps and a leakproof inner pouch with a closeable spout. The outer shell in its front side wall has an inwardly inclined upper portion provided with an orifice for the spout, and in its two lateral side walls has triangular, folded-in sections adjacent the inclined portion of the front side wall. The spout projects through a wall of the pouch and has a flange at the inner end which is secured to the interior surface of the pouch. At least one tear-off strip is located in at least one side wall of the outer shell, which, upon removal, permits the plastic inner pouch to be effortlessly removed from the shell.
    Type: Grant
    Filed: March 13, 1990
    Date of Patent: September 17, 1991
    Assignee: Carl Edelmann GmbH
    Inventors: Erich Heuberger, Wolf-Dieter Knorrich
  • Patent number: 4890772
    Abstract: A transport and storage container for concentrates of beverages or the like for making a ready-to-drink beverage by means of a drink-making machine is provided in the form of an inner bag package, whereof the two narrow side walls, as well as the top and bottom, are parallel to each other, whereof the narrow side wall containing the concentrate outlet, removal and connection, piece and the opposite narrow side wall form angles of approximately 93.degree. and 87.degree. with the top and with the bottom. The two triangular wall portions of the inner bag gussets located in the bottom and top planes of the package are sealed or welded together, and a viewing window structure is provided in the outer cardboard casing of the package adjacent the end where the concentrate outlet piece is located.
    Type: Grant
    Filed: November 13, 1987
    Date of Patent: January 2, 1990
    Assignees: Carl Edelmann Verpackungstechnik, Coca Cola Company
    Inventors: Erich Heuberger, Wolf-Dieter Knorrich, Joachim W. Dziallas
  • Patent number: 4572422
    Abstract: A container with an inner pouch, particularly for liquids such as oil, vinegar or fruit juices or for bulk goods or the like, consisting of an outer cardboard shell such as that used in folding boxes, with bottom flaps and top flaps respectively connected together, particularly glued together, and a leakproof inner pouch closed at its upper and/or lower ends by a sealed or welded seam and having a closable spout projecting through an opening in one wall of the shell, wherein the upper portion (17) of one of the two narrow side walls (18), containing the opening (16) for the spout (15) connected with the inner pouch (12), is inwardly inclined when the container is closed and the upper triangular wall portions (19) of the two wider side walls (20), located adjacent to the inclined upper narrow wall portion (17), are folded inwardly along their angle bisectors (21).
    Type: Grant
    Filed: September 27, 1984
    Date of Patent: February 25, 1986
    Assignee: Carl Edelmann Verpackungstechnik GmbH
    Inventors: Erich Heuberger, Wolf-Dieter Knorrich, Karl-Josef Ehrhart