Patents by Inventor Stephen E. Tracy

Stephen E. Tracy 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: 4880071
    Abstract: A toy air propelled vehicle is set forth that utilizes a plurality of rearwardly oriented aligned impellers with a forwardly positioned impeller to elevate the vehicle. The rear impellers are pivotal to provide directional orientation to the vehicle and additionally snap on pontoons are positioned to underlying skids of the vehicle where in association with 90 degree rotation of the rear impellers enables the vehicle to be utilized as an air boat.
    Type: Grant
    Filed: August 10, 1988
    Date of Patent: November 14, 1989
    Inventor: Stephen E. Tracy
  • Patent number: 4714226
    Abstract: A swivel housing (22) at the lower end of a davit (10) is introduced into an open side of a socket (20). The socket (20) is mobile and it includes hook members (136, 140) at its lower end which fit through openings (60, 62) in a base member (18) which is incorporated into a rooftop (12). The socket (20) is then slid sideways to place the hook members (136, 140) below hook engaging portions (90, 94 or 92, 96) of a top wall (56) of the base member (18). Then, a filler member (146) is inserted into a portion of the opening (60, 62) which is vacated by the sideways shifting of the socket (20), to block unwanted sideways shifting of the socket (20) in opposite direction. The swivel housing (22) at the lower end of the davit (10) is inserted into the open side of the socket (20) while the davit is in a horizontal position. Then, a pivot pin (188) is inserted and the davit (10) is swung upwardly about the pivot pin (188). Then, a lock pin (196) is inserted to lock the davit (10) in an upright position.
    Type: Grant
    Filed: June 24, 1986
    Date of Patent: December 22, 1987
    Assignee: Spider Staging, Inc.
    Inventor: Stephen E. Tracy