Patents by Inventor William D. Nelson

William D. Nelson 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: 4925188
    Abstract: A toy race track and lap counter comprising a track with adjacent lanes each forming a complete circuit and racing objects which are propelled around the track by pressurized air controllably discharging from separate nozzles in a propulsion tower. Separate air impulse devices are provided for each player for controlling the timing and intensity of each burst of pressurized air against that player's racing object as it passes by the propulsion tower and beneath the nozzles. A plurality of propulsion towers may also be provided which are operably interconnectable whereby simultaneous air bursts are applied at more than one location around the track by each player by manually timing the activation of that player's air impulse device.
    Type: Grant
    Filed: September 29, 1989
    Date of Patent: May 15, 1990
    Inventors: Robert S. McKay, William D. Nelson
  • Patent number: 4772242
    Abstract: A wheeled toy vehicle is disclosed having a frame and a drive wheel rotatably mounted on the frame, to roll across a support surface. A pair of forearms are pivoted to the frame, respectively on its opposite sides. Each forearm has a fist at its forward end and an elbow at its rearward end. Each forearm is constrained to pivot between a raised position having its fist well above the elbow and the support surface, and a lowered position having its fist close to the support surface. A drive couples each forearm, at a location between the elbow and fist, to the drive wheel, for repeatedly raising and lowering each forearm, as the drive wheel is rotated. A pair of upper arms respectively are pivoted to the forearms at the elbows. The upper arm is angled relative to its associated forearm, the angle between each upper arm and forearm being its minimum near the raised position and being its maximum near the lowered position.
    Type: Grant
    Filed: January 29, 1987
    Date of Patent: September 20, 1988
    Assignee: Up-Trend Design
    Inventors: Robert S. McKay, William D. Nelson
  • Patent number: 4731042
    Abstract: The disclosed toy may be used for capturing an intended toy victim within a snare net sufficiently large when opened to fit over and around at least part of the victim. A carrier, shaped as a monstrous insect or the like, may be used for holding the net open while stalking the victim, for positioning the net over and down around the victim, and for releasing the net when desired to snare the victim. The carrier may have a body and a plurality of legs depending from the body in an array to fit at least partially down and around the victim. Corresponding free ends of the legs have means for receiving and removably holding the snare net, to hold the same opened. The net may be elongated and generally tubular in shape, having a closed end and an open end. Flexible elastic means at the open net end, may be stretched to the holding means on the legs; and when released, may resiliently close the open net end against and relative to the victim.
    Type: Grant
    Filed: November 7, 1986
    Date of Patent: March 15, 1988
    Assignee: Robert S. McKay
    Inventors: Robert S. McKay, Steven S. Starr, William D. Nelson
  • Patent number: 4676765
    Abstract: A self propelled toy vehicle provided with a self contained bridging assembly. A bridging assembly is provided which upon manual actuation is automatically positioned to be driven over by the toy vehicle as it climbs over an embankment or passes over a chasm. After the vehicle has passed over the bridging member, it is automatically returned to a rest position on top of the vehicle.
    Type: Grant
    Filed: May 27, 1986
    Date of Patent: June 30, 1987
    Assignee: Robert S. McKay
    Inventors: Robert S. McKay, William D. Nelson
  • Patent number: 4670991
    Abstract: A drawing machine having a frame for translatory movement upon a drawing surface. The frame defines an elongated, transverse interior opening. A plurality of template means are removably receivable within the interior opening. Each includes an aperture defining a shape which may be traced upon the drawing surface by the user. The template means may be repositioned along the transverse length of the elongated interior opening. Translatory movement of the drawing machine upon the drawing surface and guided movement of the template means along the interior opening permit the user to create varied patterns and pictures.
    Type: Grant
    Filed: February 8, 1985
    Date of Patent: June 9, 1987
    Assignee: Robert S. McKay
    Inventors: Robert S. McKay, Thomas A. Robbins, William D. Nelson