Patents by Inventor G. Walter Dörfel

G. Walter Dörfel 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: 6338451
    Abstract: In a cross cutting device for a winding machine having at least a first carrier roll (11) wrapped by the web to be wound and a second carrier roll, both carrier rolls forming a winding bed for at least one roll (13) to be wound around a winding core (14), particularly for winding paper in form of one web or several webs in parallel, a cross cutting device to cut through the web after completion of a roll (13) is formed near the front end of a support beam (24) being conductible through a clearance gap (G) between a first and second carrier roll into a cutting position of the cross cutting device which is located at or close to the surface of said first carrier roll (11). Said support beam (24) can be pressed by means of a finished wrapped roll (13) against said wrapped first carrier roll (11).
    Type: Grant
    Filed: November 9, 1998
    Date of Patent: January 15, 2002
    Inventors: G. Walter Dörfel, Jürgen Treutner, Donald Gangemi
  • Patent number: 6209818
    Abstract: A rider roll arrangement adapted for use in a web winding device including at least one winding supported during winding, the rider roll arrangement including a rider roll for pressing against the one winding, the rider roll comprising a support beam and a plurality of weighting rollers mounted to the support beam. Each pair of the weighting rollers includes a bracket for mounting the roller on the support beam, and each weighting roller includes two end to end cylinder piston units that are connected to the bracket and that are located entirely within the respective roller.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: April 3, 2001
    Inventors: Jürgen Treutner, G. Walter Dörfel
  • Patent number: 6170777
    Abstract: The invention pertains to a load roll arrangement for loading a winding arrangement with one or several wound rolls on the same axis, during the winding of a web-like material, particularly paper, onto winding cores in a multiple-drum winder wherein support drums form a winding bed, in which the winding arrangement, rotating about its axis, is supported, with a support beam (60), vertically movable dependent upon the wound roll diameter, with a multipart load roll, consisting of a number of load rollers (42), which, individually with respect to the support beam (60), are vertically movable on a mounting arrangement and can be maintained in contact with the wound roll along a nip, with means for the fluid-like, particularly hydraulic, pressing of the load rollers (42) against the winding arrangement, and with an additional adjustment device, by means of which the mounting arrangements (50) of the individual load rollers (42) can be moved to different heights, independently of each other with respect to the sup
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: January 9, 2001
    Inventors: G. Walter Dörfel, Bernd Görner