Patents by Inventor Roland M. Witt, Jr.

Roland M. Witt, Jr. 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).

  • Radiation reducing manway doors
    Patent number: 4932553
    Abstract: A radiation reducing door assembly comprises a mounting bracket having hinge means affixed thereto, said hinge means defining different axes of rotation for doors of at least two types, the doors being sized and shaped to overlie at least a portion of the opening with which the assembly is associated. The door assembly also includes means for rotatably coupling the removable doors to the hinge means whereby the mounted door is supported from said bracket and may be pivoted between open and closed positions.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: June 12, 1990
    Assignee: Combustion Engineering, Inc.
    Inventors: John E. Reich, Jr., Roland M. Witt, Jr., David L. Crick, Charles M. Ashman