Patents by Inventor James T. Spies

James T. Spies 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: 5529425
    Abstract: A locking assembly for use with a foldable walker having a pair of side frames, each having a tubular front leg concentrically contained within an end sleeve of a cross brace, includes a housing secured to each of the side frame front legs. Each housing closely receives a locking pin extending through a first bore. The locking pin is movable between first and second positions and includes a locking end which extends into an aperture of a lock plate connected to the end sleeve of the cross brace. An actuating lever pivotally connected to the housing includes a force applying handle which, when depressed, causes the lever to rotate about a pivot point and raise the locking pin from the lock plate aperture thus allowing the side frame to rotate with respect to the cross brace.
    Type: Grant
    Filed: July 19, 1994
    Date of Patent: June 25, 1996
    Assignee: Invacare Corporation
    Inventors: James T. Spies, Robert R. Bly
  • Patent number: 4724559
    Abstract: A bed rail (A) includes a first vertical end member (10) and a second vertical end member (12) between which cross members (14, 16, 18) and telescopically received stub members (30, 32, 34) extend. The spacer member (B) is connected between free ends of some of the cross members to maintain the positional stability. A pair of brackets (C) slidingly receive the vertical end members. The brackets each includes a slot (64) which is dimensioned with an appropriate width to receive the cross members or the stub members adjacent their interconnection with the end members. A spring biased member (80) is biased by a spring (82) into engagement with a locking aperture (68) in the bracket. A bracket cam surface (66) cams the spring biased member inward as the bed side rail is raised. A knob (84) enables an operator to withdraw the spring biased member to lower the side rail.
    Type: Grant
    Filed: January 16, 1987
    Date of Patent: February 16, 1988
    Assignee: Invacare Corporation
    Inventors: Robert R. Bly, James T. Spies, Bud Spies