Patents by Inventor Roberto Jarach

Roberto Jarach 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).

  • Dampening device for offset printing machines for alternate and selective utilization of water or of a water-alcohol mixture
    Patent number: 4385559
    Abstract: A method and apparatus are described for operating a printing press in which the dampening fluid is water or an alcohol water mixture and alternately and selectively switching from water to said alcohol-water mixture. The device supplies dampening fluid to the plate cylinder and is separate from the inking assembly.
    Type: Grant
    Filed: January 12, 1981
    Date of Patent: May 31, 1983
    Inventor: Roberto Jarach
  • Devices for numeration, overprinting, perforation and cutting on Offset sheet printing machines
    Patent number: 4369703
    Abstract: Improvement in devices for numeration, printing perforation and cutting in Offset sheet printing machines, characterized by the fact all operative structures, including the inking mechanism are combined in a structural unit, shiftable "as a drawer" between the printing machine's shoulders, to the extent necessary for the service of the same device, for performing the functions and respectively for performing the removal to the necessary extent for the service of the machine without the functions and all preparatory operation of the individual operations and of maintenance of the same machine and of the drawer.The invention comprises also the improved "as a drawer" unit as hereinbelow specified.
    Type: Grant
    Filed: April 6, 1981
    Date of Patent: January 25, 1983
    Inventor: Roberto Jarach