Patents Assigned to Raumaster Paper Oy
  • Patent number: 8485577
    Abstract: A gripper having contact members arranged to be positioned against the sides of a roll to be lifted. A gripping force is provided on the contact members at substantially gripping height against the roll to be lifted by tensioning a binder connecting the contact members.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: July 16, 2013
    Assignee: Raumaster Paper Oy
    Inventors: Matti Lammi, Jouko Helminen, Jarmo Pohjolainen
  • Patent number: 7770497
    Abstract: The invention relates to a method and an apparatus for cutting a sleeve to a predetermined length. The sleeve is first moved the direction of the longitudinal axis through a distance corresponding to the required cutting length, a rotating saw blade is driven through the outer surface of the sleeve but not through the inner surface, the sleeve is rotated through a first revolution whereupon the direction of rotation of the sleeve is set to be the same as the direction of rotation of the blade, the blade is driven through the inner surface of the sleeve and the sleeve is rotated until the cut extends around the sleeve.
    Type: Grant
    Filed: January 23, 2006
    Date of Patent: August 10, 2010
    Assignee: Raumaster Paper Oy
    Inventor: Tomi Maki-Korte