Patents by Inventor Karl Heinz Sengewald

Karl Heinz Sengewald 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: 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
  • Patent number: 4889523
    Abstract: A package includes an upper wall, a lower wall and two side folds provided with folds. A tearable flap is provided at a filling opening of the package. The flap is provided with two suspension openings spaced from each other. The packages are produced from a web of synthetic thermoplastic foil which is formed into an envelope open at one longitudinal edge and side folds are thereafter formed on the envelope which is then weld-sealed at its open edge.
    Type: Grant
    Filed: February 24, 1988
    Date of Patent: December 26, 1989
    Inventor: Karl-Heinz Sengewald
  • Patent number: 4887913
    Abstract: A bag for infusion solutions and the like has a body part formed by a hose and having walls composed of a synthetic thermoplastic compound foil, and at least one connecting part formed of one piece with the body part and also composed of the foil. A hose for manufacturing the bags is formed so that the bags extend transverse to the direction of elongation of the hose and their connecting parts face toward one longitudinal edge of the hose. The bags are manufactured by producing first a hose element of a synthetic thermoplastic foil in aseptic conditions, and then placing onto the hose elements at both sides of layer of another synthetic thermoplastic foil by lamination, so as to form the hose, whereupon the bags are produced on the thus formed hose.
    Type: Grant
    Filed: July 15, 1987
    Date of Patent: December 19, 1989
    Inventor: Karl-Heinz Sengewald
  • Patent number: 4884694
    Abstract: A package to be gas-sterilizable comprises a lower foil composed of a thermoplastic material and having an edge, an upper gas-permeable foil having an edge, the lower foil and the upper foil being connected with one another in the region of the edges, an intermediate gas-permeable foil arranged to protect the upper foil from a content of the package, located between the upper and lower foils and loosely extending over the upper foil, the intermediate foil being perforated and formed of thermoplastic material, the intermediate foil having an edge and upper and lower sides and being simultaneously connected by welding at the lower side with the lower foil and at the upper side with the upper foil only in the region of the edges so that a gas distributing chamber is formed between the upper foil and the intermediate foil, and means for connecting the intermediate foil with the upper foil and means for connecting the intermediate foil with the lower foil, the connecting means being formed so that the connection o
    Type: Grant
    Filed: June 30, 1988
    Date of Patent: December 5, 1989
    Inventor: Karl-Heinz Sengewald
  • Patent number: 4781471
    Abstract: In accordance with a method and an arrangement for producing bags, sacks or similar objects, and in a synthetic plastic material for its production, a plurality of printing marks are arranged on a supporting foil, and then the supporting foil is attached to the synthetic plastic material, for example by gluing.
    Type: Grant
    Filed: March 10, 1987
    Date of Patent: November 1, 1988
    Inventor: Karl-Heinz Sengewald
  • Patent number: 4779996
    Abstract: A pouch comprises an upper wall, a lower wall, each of the walls having two longitudinal edges, a bottom edge and a top edge, elements for connecting the walls with one another so as to connect the side edges and the bottom edge of one of the walls with the side edges and the bottom edge of the other of the walls and to retain the top edges not connected with one another to form a filling opening, and elements for suspending the pouch and including at least one suspension opening and at least one slot provided in one of the walls and forming a bridge therebetween, and at least one suspension opening and at least one slot provided in the other of the side walls and directly communicating the one suspension opening with the top edge of the other of side walls.
    Type: Grant
    Filed: January 16, 1987
    Date of Patent: October 25, 1988
    Inventor: Karl-Heinz Sengewald
  • Patent number: 4721396
    Abstract: A bag for fluidic commodities is formed of a hose of thermoplastic film material and includes a body having side folds and formed by two opposing walls welded to each other at at least their upper ends. The bag has a filling opening and a loop-shaped gripping handle formed by two opposite strips cut out from the blank of the bag and welded to each other at the upper ends. A method of producing such bags includes steps for making the bag body and the gripping handle.
    Type: Grant
    Filed: February 26, 1986
    Date of Patent: January 26, 1988
    Inventor: Karl-Heinz Sengewald
  • Patent number: 4709534
    Abstract: A bag for infusion solutions and the like has a body part formed by a hose and having walls composed of a synthetic thermoplastic compound foil, and at least one connecting part formed of one piece with the body part and also composed of the foil. A hose for manufacturing the bags is formed so that the bags extend transverse to the direction of elongation of the hose and their connecting parts face toward one longitudinal edge of the hose. The bags are manufactured by producing first a hose element of a synthetic thermoplastic foil in aseptic conditions, and then placing onto the hose elements at both sides a layer of another synthetic thermoplastic foil by lamination, so as to form the hose, whereupon the bags are produced on the thus formed hose.
    Type: Grant
    Filed: August 26, 1985
    Date of Patent: December 1, 1987
    Inventor: Karl-Heinz Sengewald
  • Patent number: 4696050
    Abstract: A package which is formed as a bag to be caried has a plurality of lateral walls having upper portions which form a gripping part and lower portions which form a body part, two first opposite walls are folded, two second opposite walls are provided in the region of the gripping part with a gripping opening and upper and lower welding seams which connect the walls with one another and separate the gripping part from the body part, one of the second opposite walls has a section adjoining the gripping part and is provided with window-like opening, and a covering foil covers the window-like opening of the section of one opposite wall.
    Type: Grant
    Filed: October 3, 1985
    Date of Patent: September 22, 1987
    Inventor: Karl-Heinz Sengewald
  • Patent number: 4015771
    Abstract: A side-seamed two-panel thermoplastic film bag suited for packaging printed matter, having an open mouth to be transversely seam-sealed closed after initial filling with one panel end projecting beyond the mouth as a suspension portion with wicket-accepting hanging holes, and an extension of the second panel at the other end reflected onto the first panel as a bag closure flap with lateral ends secured to the other panel by the side seam-welds, the flap having oblique tear perforation lines up from the bottom corners, a permanently tacky adhesive stripe between the perforation lines releasably bonding the flap to first panel, whereby the closure is easily hand-torn and opened for content inspection and re-closure by the adhesive.
    Type: Grant
    Filed: December 29, 1975
    Date of Patent: April 5, 1977
    Inventor: Karl Heinz Sengewald