Patents by Inventor William D. Hossack

William D. Hossack 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).

  • Repairing rail ties
    Patent number: 5173222
    Abstract: A method for repairing eroded concrete rail ties. An abrasion resistant composition incorporating a curable binder is applied to the eroded rail seat and cured by the application of pressure and heat. A gas fired heating plate with a release surface is pressed onto the composition to force it into the eroded recess and cure it. The device incorporating the heating plate is clamped onto the rail clamp shoulders embedded in the concrete rail tie to enable pressure to be applied.
    Type: Grant
    Filed: June 5, 1991
    Date of Patent: December 22, 1992
    Assignee: McKay Australia Limited
    Inventors: Hartley F. Young, William D. Hossack