Patents by Inventor Harvey E. Hales, deceased

Harvey E. Hales, deceased 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: 4457468
    Abstract: A railroad grade crossing structure comprising a plurality of prefabricated, elongated, reinforced concrete panels formed of used, inverted rail sections placed between the rails of each track and outside the rails of each track to provide a smooth durable highway surface; the panels resting on resilient pads supported on elongated crossties containing upstanding studs to fit loosely within sleeves in the bottom of the panels to prevent undue lateral movement; substantially all free space between panels and the rails of each track being filled with a settable elastomeric compound; the end panels adjacent the shoulders of the highway having an upper surface substantially flush with the highway surface and sloping downwardly to the lower surface of the panel which rest on the resilient pads.
    Type: Grant
    Filed: May 8, 1981
    Date of Patent: July 3, 1984
    Assignee: Railroad Concrete Crosstie Corporation
    Inventors: Harvey E. Hales, deceased, Edmund R. Fredrick