Patents by Inventor Richard P. St. Jean

Richard P. St. Jean 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: 4301893
    Abstract: The present invention is directed to a lantern ring arrangement for use in fluid seal arrangements, to prevent fluid leaking around rotating shafts including a ring having first and second spaced sides with first and second ring openings respectively provided therein, an inner peripheral surface and outer peripheral surface with first and second flange means of generally equal length extending radially outwardly from and around a portion of the periphery of the outer surface of the ring in spaced relation along the longitudinal axis of the ring; first groove means of selected width and depth are provided around the inner surface of the ring means adjacent the first opening to the ring where the first opening diameter is selected to receive a shaft rotatable therein; radially inwardly extending flange means of selected depth located within said ring adjacent the inner edge of the first groove means and extending around a portion of the inner periphery of the ring to define a central opening in said ring of dia
    Type: Grant
    Filed: July 27, 1979
    Date of Patent: November 24, 1981
    Inventors: Richard P. St. Jean, Patricia M. St. Jean