Patents by Inventor Nello J. Petri

Nello J. Petri 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: 4333420
    Abstract: A glue applicator for applying glue to a moving web is in the form of a gear pump having its housing in close proximity to the web and having a discharge nozzle adapted to discharge glue directly onto the web. The drive and the mount for the housing permit adjustable movement transversely of and normal to the web.
    Type: Grant
    Filed: July 21, 1980
    Date of Patent: June 8, 1982
    Inventor: Nello J. Petri
  • Patent number: 3991674
    Abstract: A dampening apparatus for a lithographic press in which a train of rollers conducts dampening fluid from a pan to the form roller or applicator roller of the press that is in contact with the printing plate. The fluid is conducted from a pan roller to a metering roller and then to a transfer roller which is in rolling engagement with and rotating at the same peripheral speed as the form roller. Variation in the amount of dampening fluid which is transferred to the form roller is achieved by driving the pan roller and intermediate roller directly from a separate source of power and permitting the remaining rollers of the train to be driven from the printing plate or inking rollers. By varying the speed of rotation of the pan roller and intermediate roller the amount of fluid transferred to the form roller may be varied to the end that the exact amount of water required by the form roller may be provided.
    Type: Grant
    Filed: September 11, 1973
    Date of Patent: November 16, 1976
    Inventor: Nello J. Petri