Patents by Inventor Kenneth I. Dyche

Kenneth I. Dyche 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).

  • Plug door for a railroad freight car
    Patent number: 4043078
    Abstract: The plug door of a railroad freight car is restrained against falling by elongated slide members in the upper track connected to the crank operating rod.
    Type: Grant
    Filed: March 11, 1976
    Date of Patent: August 23, 1977
    Inventors: Kenneth I. Dyche, J. Paul Knox, Ronald I. Swearengin