Patents Assigned to Prontophot Holding AG
  • Patent number: 4605300
    Abstract: A roller-blind shutter (32) comprises two shutter-curtains (35,36) with accompanying shutter-rollers (33,34) adapted to be driven by stepping motors (M3,M4). The strip-material (6) is transported and positioned, along the path of travel of the said shutter-curtains, by a positioning roll (14) also driven by a stepping motor (M2). The stepping motors (M2,M3,M4) are controlled digitally by pulses from positioning devices. Prior to exposure of a section of strip by a projected picture (31), the strip-material is positioned in such a manner that its leading transverse edge (6k) is spaced by half a frame-length from the optical copying axis (OA). In order to make an exposure, the said shutter-curtains are moved consecutively in the same direction, so that the closing edges (35k,36k) thereof expose and then cover the said section of strip.
    Type: Grant
    Filed: October 11, 1984
    Date of Patent: August 12, 1986
    Assignee: Prontophot Holding AG
    Inventor: Kurt Thaddey
  • Patent number: 4108706
    Abstract: A labelling machine comprises feed rollers which are driven stepwise to draw lengths of tape from a tape reel and to feed same to a transfer roller. Each length of tape is severed by co-operating cutter means on the transfer roller and on a pivotal arm adjacent the transfer roller. The severed length, which forms the label, is fed stepwise by the transfer roller to a label-applying station. During the stepwise movement the label is held on the transfer roller, for example by vacuum.
    Type: Grant
    Filed: May 26, 1977
    Date of Patent: August 22, 1978
    Assignee: Prontophot Holding AG
    Inventors: Jacobus Brands, Kurt Thaddey