Patents by Inventor James F. Houghton

James F. Houghton 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).

  • Actuator mechanism for a rotary valve
    Patent number: 5033658
    Abstract: A tundish (11) has located alongside it an upright support member (20). A cross arm (22) is pivotally mounted on the member (20) with one end of the cross arm (22) overlying the tundish (11). A hydraulic or pneumatic ram (25) is mounted in the member (20) for applying a downward force on the overlying end of the cross arm (24) which mounts a drive means (27) connected to the stem (14) of a rotary valve (12) for controlling the exit of hot or corrosive liquid from the tundish (11).
    Type: Grant
    Filed: February 7, 1990
    Date of Patent: July 23, 1991
    Assignee: Thor Ceramics Limited
    Inventors: James M. Thornton, Peter G. Longley, James F. Houghton