Patents Assigned to Fr. Hesser Maschinenfabrik AG
  • Patent number: 4022373
    Abstract: A package for coffee or the like of tubular configuration having an outer sleeve and a tubular reinforcing member within the sleeve. A tear strip is located between the sleeve and the reinforcing member at the upper end of the package to provide a common and flush end with the reinforcing member. The narrow strip peripherally surrounds the reinforcing member and projects outwardly from the package. The package has a fin-seal closure.
    Type: Grant
    Filed: December 15, 1975
    Date of Patent: May 10, 1977
    Assignee: Fr. Hesser Maschinenfabrik AG
    Inventors: Rolf Kohnlein, Klaus Domke, Walter Bandle, Helmut Schottle
  • Patent number: 3982991
    Abstract: Device for welding and parting thermoplastic foils to form bags or the like, having a pair of heated opposing tools arranged to close against foils introduced between them. The foils are welded and parted along a compression line formed between a compression edge of one tool and a hard, wear-resistant, but resilient surface of the opposing tool.
    Type: Grant
    Filed: September 26, 1974
    Date of Patent: September 28, 1976
    Assignee: Fr. Hesser Maschinenfabrik AG
    Inventors: Klaus Hamm, Otto Beck
  • Patent number: 3942301
    Abstract: A packaging apparatus for forming, filling and gas flushing, evacuating and sealing packaging materials to produce low-oxygen content packages. The apparatus contains a conveyor for transferring packaging containers from a container forming work station to various intermediate work stations to an evacuating and sealing station and thence to an exit station of the packaging machine. A protective gas-confining cover is provided over the path followed by the containers, and gas-flushing means are provided for the filler materials and the containers.
    Type: Grant
    Filed: May 20, 1975
    Date of Patent: March 9, 1976
    Assignee: Fr. Hesser Maschinenfabrik AG
    Inventor: Klaus Domke
  • Patent number: 3932981
    Abstract: A wrapping machine having a lifting table for presenting articles to the folding channel. Pressure plates are mechanically coupled to the vertical motion of the lifting table. As the table is elevated, cam surfaces on the machine act to bring the plates toward one another in order to compress articles which were previously deposited on the table.
    Type: Grant
    Filed: October 7, 1974
    Date of Patent: January 20, 1976
    Assignee: Fr. Hesser Maschinenfabrik AG
    Inventors: Walter Fillmann, Werner Kalmbach