Patents by Inventor Bernard G. Gallacher

Bernard G. Gallacher 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).

  • Slippery wheel detector
    Patent number: 3993270
    Abstract: This invention relates to a method and apparatus for determining whether or not a freight car in a classification yard can be adequately retarded, prior to it being moved to make up a freight train, by measuring whether the wheels of the freight car are too slippery for the car to be properly retarded to a safe speed while being moved toward the freight train.
    Type: Grant
    Filed: July 16, 1975
    Date of Patent: November 23, 1976
    Assignee: Southern Pacific Transportation Company
    Inventor: Bernard G. Gallacher