Patents by Inventor Hans-Dieter Welp

Hans-Dieter Welp 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: 9039591
    Abstract: A bag manufacturing system has at least one tube forming device which forms a tube and separates the tube into tube pieces, and at least one bottom forming device which provides the tube pieces with a bottom and thus forms the bags. The system has a storage device for storing the tube pieces on at least two levels. At least two charging and removing devices are provided with which the tube pieces can be supplied to and/or removed from at least two different points of the levels of the storage device.
    Type: Grant
    Filed: May 4, 2005
    Date of Patent: May 26, 2015
    Assignee: WINDMOELLER & HOELSCHER KG
    Inventor: Hans-Dieter Welp
  • Publication number: 20080274867
    Abstract: The invention relates to a bag manufacturing system (1), comprising at least one tube forming device (2) which forms a tube and separates said tube into tube pieces (8), at least one bottom forming device (4) which provides the tube pieces (8) with a bottom and thus forms bags as well as a storage device (3), for storing tube pieces (8), in which tube pieces (8) are stored on at least two levels (16). According to said invention, at least two charging and removing devices (14, 22) are provided, by means of which (14, 22) the tube pieces (8) can be supplied to and/or removed from the levels (16) of the storage device (3) at least two different points thereof.
    Type: Application
    Filed: May 4, 2005
    Publication date: November 6, 2008
    Inventor: Hans-Dieter Welp
  • Patent number: 7361130
    Abstract: A system for the production and subsequent palletizing of tube segments, bags, or sacks has at least one functional unit for production of tube segments, bags, or sacks, at least one device for depositing and stacking, which places and stacks the finished tube segments, bags, or sacks, and at least one storage element such as a palette, in which the stack can be deposited. The system has at least one alignment unit for the stack of the tube segments, bags, or sacks, which reduces the mutual deviations of the edges of the tube segments, bags, or sacks.
    Type: Grant
    Filed: May 3, 2005
    Date of Patent: April 22, 2008
    Assignee: Windmoeller and Hoelscher
    Inventors: Ralf Ahlers, Hans-Dieter Welp, Burkhard Schliek
  • Publication number: 20060263194
    Abstract: The invention relates to a system for production and subsequent palletizing of tube segments, bags or sacks, which exhibits following features: at least one function unit for production of tube segments, bag or sacks at least one device for depositing and stacking, which places and stacks the finished tube segments, bags or sacks, at least one storage element such as a palette, in which the stack (11) can be deposited The present invention is characterized by at least one alignment unit (4) for the stack (11) of the tube segments, bags or sacks, which reduces the mutual deviations of the edges of the tube segments, bags or sack.
    Type: Application
    Filed: May 3, 2005
    Publication date: November 23, 2006
    Inventors: Ralf Ahlers, Hans-Dieter Welp, Burkhard Schliek