Patents Assigned to IWEMA Forpacknings AB
  • Patent number: 4050216
    Abstract: A method is disclosed for making a package comprising a shrinking film surrounding a number of articles arranged in a package pattern and presenting on its top surface, which surface comprises at least two layers of said film to reinforce said surface, a carrying handle made wholly or partly from the package material proper, said handle being delimited by two cuts formed in the lengthwise direction in said reinforced top surface of said package, said handle being thus integral with the rest of the film at its ends only.
    Type: Grant
    Filed: August 8, 1974
    Date of Patent: September 27, 1977
    Assignee: Iwema Forpacknings AB
    Inventor: Folke Gustav Adolf Stenberg
  • Patent number: 3940305
    Abstract: A tool essentially comprising two opposite jaws supporting means to clamp, cut and weld together foil webs. The cutting means is supported on one of the jaws whereas the heating means, and thus the welding surfaces, are provided on the opposite jaw, said welding surfaces being divided by an element having considerably less heat conductivity than the surrounding material forming the welding head proper and having a groove formed therein in which groove the cutting means is received when the jaws are brought into contact with one another during the welding and cutting operations. The arrangement provides for quick and reliable welding and cutting of foil webs without the risk of the foil adhering to the warm welding surfaces and without the need of having to protect these welding surfaces to avoid such adherence. The arrangement likewise enables accurate temperature control at the welding points.
    Type: Grant
    Filed: March 14, 1973
    Date of Patent: February 24, 1976
    Assignee: IWEMA Forpacknings AB
    Inventor: Folke Gustav Adolf Stenberg