Patents Assigned to Karl-H. Sengewald GmbH & Co. KG
  • Patent number: 5290104
    Abstract: A foil bag has its upper end provided with a seam weld (14) interconnecting all of the bag walls and having the handle ledge (16a) of a handle (16) welded to its outer side. The handle (16) is made from a flexible foil material. In a foil bag line consisting of successive foil bags (12), the handle (16) of one respective foil bag overlaps the adjacent foil bag. The handles consist of a bendable foil material so that the foil bag line can be guided about processing and pressure rollers. The handles (16) are welded to seam welds (14) connecting the two side walls.
    Type: Grant
    Filed: October 22, 1992
    Date of Patent: March 1, 1994
    Assignee: Karl-H. Sengewald GmbH & Co. KG
    Inventor: Karl-Heinz Sengewald
  • Patent number: 5219229
    Abstract: The packing includes a side-folds bag (10). For opening the same, tear lines (22) are provided that start at the handle (18) and extend congruently at first. In the upper wall portions (14a, 14b), the tear lines diverge towards the corners (23), ending in the end wall (12) or converging again. For tearing the bag open, one has to pull at the four-layered portion (21) of the handle (18). The tearing is then done in a controlled manner with a take-out opening being made in the upper wall (14), which opening may extend into the end wall (12).
    Type: Grant
    Filed: September 6, 1991
    Date of Patent: June 15, 1993
    Assignee: Karl-H. Sengewald GmbH & Co. KG
    Inventor: Karl-Heinz Sengewald