Patents by Inventor Roger W. Morris

Roger W. Morris 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).

  • Rolling safety trolley
    Patent number: 4773504
    Abstract: A rolling safety trolley for traversing the upper circumference of an open tank having a top ledge comprises: a frame having an upright member and at least one cross member, and preferably a plurality of cross members, an outer wall roller affixed to the extremity of each of said crossmembers and adapted to engage and roll along the outer wall surface of said tank, a hooked member affixed to the uppermost portion of said upright member, a top ledge roller affixed to said hook member and adapted to engage and roll along said top ledge, and an inner wall roller affixed to said hook member and adapted to engage and roll along the inner wall of said tank.
    Type: Grant
    Filed: August 18, 1983
    Date of Patent: September 27, 1988
    Assignee: Union Oil Company of California
    Inventors: Harold L. Reed, Clarence G. Prichard, Roger W. Morris