Patents by Inventor Rolf Borgström

Rolf Borgström 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).

  • Publication number: 20160297139
    Abstract: A method for processing of a web of packaging laminate in relation to fusing of two opposing edges of the web, comprises: heating a first edge region of the web on a first side, heating a second edge region opposing the first edge region, on a second side opposing the first side, folding the web of packaging laminate such that the first and the second edge region meets in an overlapping relationship to form a flattened tube, applying a pressure onto the overlapped edge regions, wherein the first edge region facing towards an inside of the flattened tube is heated by flow of electrically heated air.
    Type: Application
    Filed: April 8, 2014
    Publication date: October 13, 2016
    Applicant: TETRA LAVAL HOLDINGS & FINANCE S.A.
    Inventors: Rolf BORGSTROM, Lars REGNER
  • Patent number: 6554182
    Abstract: The disclosure relates to a packaging container for long-term cold storage of liquid foods for retaining superior flavor and aroma properties in the packed product, and produced from a packaging laminate including a core layer of paper or paper-board, an inside aroma barrier layer of PET and a gas barrier layer, by fold formation and sealing of a planar packaging blank so that all contact surfaces vis-a-vis the packed product consist of the PET layer. The disclosure also relates to a method of fold forming and sealing the packaging laminate into a packaging container according to the invention. Good shelf-life after cold storage for at least six weeks at 8° C., or at least 10 weeks at 4° C. will be attained using the packaging container according to the invention.
    Type: Grant
    Filed: January 4, 2000
    Date of Patent: April 29, 2003
    Assignee: Tetra Laval Holdings & Finance S.A.
    Inventors: Tommy Magnusson, Rolf Borgström
  • Patent number: 6325878
    Abstract: The disclosure relates to a method and an apparatus (10) for producing a packaging container for liquid foods from a packaging container blank (40) by permanently uniting and sealing at least two of its edges (61, 65) with the aid of a hot melt glue, the hot melt glue being applied along one of the two edges with the aid of a heated applicator roller (11). The circumferential surface (21) of the hot roller is preferably made of hardened steel with a coating (22) countersunk in a groove int he surface along the circumference of the circumferential surface, the coating possessing good slippage properties in relation to the hot melt glue and the coating being of a width which corresponds to the region intended for application. A counter roller (14) acts on the opposite side of the packaging laminate blank against the applicator roller for controlling the outflow of the applied hot melt glue strand.
    Type: Grant
    Filed: January 4, 2000
    Date of Patent: December 4, 2001
    Assignee: Tetra Laval Holdings & Finance S.A.
    Inventor: Rolf Borgström
  • Patent number: 6139480
    Abstract: A cutting device for imparting a partial incision to a blank, the blank produced therefrom, and a method for producing are disclosed herein. The partial incision in the blank creates an access area wherein a fitment is placed thereover in a post processing fitment application. The access area has an uncut portion and an unincised portion. The access area may have a circular shape or an oval shape. The depth of the partial incision allows for facilitated rupturing by the fitment after the blank is fabricated into a carton, and a fitment is attached thereto.
    Type: Grant
    Filed: January 28, 1999
    Date of Patent: October 31, 2000
    Assignee: Tetra Laval Holdings & Finance, SA
    Inventors: Sheila Moss, Stuart Schwartz, Johan Lindstrom, Theo Louman, Rolf Borgstrom
  • Patent number: 5845840
    Abstract: A carton having an elevated bottom portion extending along the length of an exposed raw paperboard edge to protect the carton and to prevent moisture absorption. Additional elevated portions are provided for additional raw paperboard edges on the bottom of the carton. The present invention alleviates the problem of cartons having soggy bottoms since the point of absorption, the raw paperboard edge, is elevated above the moisture which may be present during distribution from the packaging machine to the retailer. The elevated bottom portion is actually inverted into the carton with planar portions resting on the surface to support the carton.
    Type: Grant
    Filed: October 21, 1997
    Date of Patent: December 8, 1998
    Assignee: Tetra Laval Holdings & Finance, S.A.
    Inventors: Mats Johansson, Charles Christensen, Rolf Borgstrom
  • Patent number: D430026
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: August 29, 2000
    Assignee: Tetra Laval Holdings & Finance, SA
    Inventors: Mats Johansson, Charles Christensen, Rolf Borgstrom