Patents by Inventor John P. Skitka

John P. Skitka 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).

  • High pressure screen shower
    Patent number: 5282575
    Abstract: A shower system for a screening machine or unit. The shower system includes a spray nozzle connected to a movement arm, a driver for longitudinally moving the movement arm in a reciprocal path, and an indexing system adapted to allow limited axial rotation of the movement arm at predetermined longitudinal positions of the movement arm.
    Type: Grant
    Filed: April 24, 1992
    Date of Patent: February 1, 1994
    Assignee: Dorr-Oliver Incorporated
    Inventors: Thomas G. Krulick, Gregory Georgalas, John P. Skitka, Daniel R. Connors