Patents by Inventor Klas Ingvar Helmer Borgstrom

Klas Ingvar Helmer Borgstrom 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: 3940017
    Abstract: The invention discloses an improved method and apparatus for separating the lowermost object from a firmly packed pile of bowl-shaped objects consisting of plastic film and having a bottom and a conical side wall and a brim projecting from the free edge of the side wall. Said pile is being supported at the brim of the lowermost object, the bottoms of the bowl-shaped objects facing downwardly. A suction means arranged for reciprocal movement is applied against the bottom of the lowermost object of the pile for pulling it off in a downward direction from the pile. Due to the suction effect of the suction means and the presence of an annular groove in the contact surface of the suction means, an annular downwardly directed bead is formed on the underside of the bottom of the lowermost bowl-shaped object in the area of the side wall at the same time as the brim of the lowermost object is being eased by the lifting up of said pile.
    Type: Grant
    Filed: March 31, 1975
    Date of Patent: February 24, 1976
    Assignee: Aktiebolaget Platmanufaktur
    Inventor: Klas Ingvar Helmer Borgstrom