Patents by Inventor Leslie D. Norman

Leslie D. Norman 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).

  • Patent number: 4643211
    Abstract: The collapsible walking frame for use by an invalid comprises a pair of interconnected spaced side frames (10, 12) each including a front member (14) having a handgrip (18) and a rear member (24) pivotally connected to the front member (14). A seat (28) pivotally connected between the front members (14) is movable from an inoperative vertical position to an operative horizontal position. The seat (28) is horizontally supported in the operative position on rear brace (26) and held in the vertical position by being fastened to front brace (22). The front and rear members of the side frames are stably supported in the operative position of the frame by pivotal locking side braces (27) which permit pivotal folding of the frame to the inoperative storage position.
    Type: Grant
    Filed: November 2, 1984
    Date of Patent: February 17, 1987
    Assignee: Uniscan Limited
    Inventors: Thomas A. Morris, Leslie D. Norman