Patents by Inventor Eberhard Kraft

Eberhard Kraft 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: 6340130
    Abstract: The present invention relates to an apparatus for supplying foil material, the apparatus comprising a motor-driven supply roll, a withdrawal means and a consumption sensor provided between the supply roll and the withdrawal means for controlling the drive of the supply roll in response to the consumption of foil material, and at least one stationary deflection roller, at least one sensor roller and a sensor means, the sensor roller being supported and arranged such that it changes the distance from the stationary deflection roller in response to the difference between supply capacity and withdrawal capacity of the foil material, and the sensor means senses said change in distance and accelerates the supply roll when the distance is smaller than a first predetermined distance, and slows down the supply roll when a second predetermined distance is exceeded. Furthermore, the invention relates to a corresponding method for supplying foil material.
    Type: Grant
    Filed: May 24, 1999
    Date of Patent: January 22, 2002
    Assignee: INDAG GmbH & Co. Betriebs-KG
    Inventors: Hans-Peter Wild, Eberhard Kraft
  • Patent number: 6340343
    Abstract: The present invention relates to a method and an apparatus for producing foil bags, wherein two foils are supplied for forming the side walls of the foil bag, wherein furthermore a bottom foil is supplied to have holes punched thereinto, said holes being spaced apart in the supply direction of the bottom foil at a distance corresponding to the width of a foil bag, wherein a measurement is carried out during the supply process for determining whether punched holes have been produced, and wherein subsequently the side foils and the bottom foil are placed one upon the other and connected to each other, and the foil layer sequence is then cut to form individual foil bags.
    Type: Grant
    Filed: May 24, 1999
    Date of Patent: January 22, 2002
    Assignee: Indag GmbH & Co. Betriebs-KG
    Inventors: Hans-Peter Wild, Eberhard Kraft
  • Publication number: 20010013561
    Abstract: The present invention relates to an apparatus for supplying foil material, the apparatus comprising a motor-driven supply roll, a withdrawal means and a consumption sensor provided between the supply roll and the withdrawal means for controlling the drive of the supply roll in response to the consumption of foil material, and at least one stationary deflection roller, at least one sensor roller and a sensor means, the sensor roller being supported and arranged such that it changes the distance from the stationary deflection roller in response to the difference between supply capacity and withdrawal capacity of the foil material, and the sensor means senses said change in distance and accelerates the supply roll when the distance is smaller than a first predetermined distance, and slows down the supply roll when a second predetermined distance is exceeded. Furthermore, the invention relates to a corresponding method for supplying foil material.
    Type: Application
    Filed: May 24, 1999
    Publication date: August 16, 2001
    Inventors: HANS-PETER WILD, EBERHARD KRAFT
  • Patent number: 6267714
    Abstract: The present invention relates to a method of producing foil bags, wherein at least two foils are supplied that serve as side foils of the foil bags, the foils are connected to each other and then cut into individual foil bags, wherein possibly existing differences in the amounts of foil materials provided by the at least two foils in the feed direction for a respective foil bag are eliminated by stretching the foil that provides the smaller amount of foil material for a foil bag, and to a bag-producing apparatus for performing the method.
    Type: Grant
    Filed: May 24, 1999
    Date of Patent: July 31, 2001
    Assignee: INDAG GmbH & Co. Betriebs-KG
    Inventors: Hans-Peter Wild, Eberhard Kraft
  • Patent number: 6210308
    Abstract: The present invention relates to a sealing apparatus for sealing foil material, the apparatus comprising a foil conveying means and a sealing means including a sealing head which has at least one sealing position for performing the foil sealing operation, an intermediate position in which the sealing head has a predetermined distance from the sealing position, and an inoperative position in which the sealing head has a second predetermined distance from the sealing position that is greater than the first distance. Furthermore, the invention relates to a corresponding sealing method which can be carried out with the sealing apparatus, wherein the sealing head is removed from the foil material to a first distance during the further transporation of the foil material and is removed from the foil material to a second greater distance when the foil sealing operation is interrupted.
    Type: Grant
    Filed: May 24, 1999
    Date of Patent: April 3, 2001
    Assignees: Indag GmbH & Co., Betriebs-KG
    Inventors: Hans-Peter Wild, Eberhard Kraft
  • Patent number: 6189293
    Abstract: A filling machine for sheet bags comprising a transportation means including a plurality of transportation elements for the sheet bags, for supplying the sheet bags to an opening station, a filling station, a closing station and a cooling station. The transportation means comprises a first conveying means including a plurality of first transportation elements for feeding sheet bags to the opening station, the filling station and the closing station, and a second conveying means including a plurality of second transportation elements for feeding the sheet bags to the cooling station. A transfer station is provided for transferring the sheet bags from the first conveying means to the second conveying means.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: February 20, 2001
    Assignee: INDAG Gesellschaft fur Industriebedarf m.b.H.
    Inventors: Eberhard Kraft, Hans-Peter Wild
  • Patent number: 6073424
    Abstract: Method of treating flexible bags, in particular for opening, filling and closing in successive treatment stations, and to a filling machine for carrying out said method. In the method the bags are transported in suspended fashion in holding devices of which at least two are provided per bag, and the bags are changed in shape by a relative movement of the respective holding devices relative to one another. In the filling machine there are receiving elements for the bags of an opening station, a filling station, and a closing station which has two holding devices per receiving element for jointly holding a bag in the upper portion of said bag, the holding devices of one receiving element being movable relative to each other.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: June 13, 2000
    Assignee: INDAG Gesellschaft fur Industriebedarf m.b.H
    Inventors: Eberhard Kraft, Hans-Peter Wild
  • Patent number: 6067772
    Abstract: A packing apparatus for packing bags in packaging containers, the apparatus comprising a conveying means for the packaging containers, an endless transportation means including receiving chambers in which respective groups of sheet bags are transported that are to form a partial filling in the packaging containers, and at least two discharge stations in which the bags corresponding to one partial filling are respectively discharged into the packaging containers at the same time, and to a corresponding method. The conveying means can transport at least two packaging containers side by side and the endless transportation means is provided in the area of the discharge stations with straight discharge sections in which at least two discharge stations are respectively arranged side by side.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: May 30, 2000
    Assignee: Indag Gesellschaft fur Industriebedarf m.b.H
    Inventors: Eberhard Kraft, Hans-Peter Wild
  • Patent number: 5979142
    Abstract: A straw attaching apparatus for attaching straws to beverage-filled sheet bags, the apparatus comprising a transportation means for transporting the beverage-filled sheet bags, a supply means for supplying a straw stripe to the beverage-filled sheet bags, and a pressing means for respectively pressing a straw to a beverage-filled sheet bag, and a corresponding method. A second supply means is provided for supplying a second straw stripe, with a control unit matching the speeds and operational sequences of the transportation means of the first and second supply means such that the first supply means attaches straws to the first, third, fifth . . . sheet bag supplied, and the second supply means attaches straws to the second, fourth, sixth . . . sheet bag supplied.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: November 9, 1999
    Assignee: Indag Gesellschaft fur Industriebedarf m.b.H.
    Inventors: Eberhard Kraft, Hans-Peter Wild