Patents by Inventor Wai H. Chow

Wai H. Chow 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: 5580296
    Abstract: A toy vehicle includes a vehicle body and front and rear wheels that are mounted on respective front and rear regions of the vehicle body for rotation about their axes. The toy vehicle further includes a pair of wings that is mounted on the vehicle body for movement between their extended, spread apart positions and their retracted positions. An upper jaw is mounted on the front region of the vehicle body for pivoting between a raised and a lowered position. A reversible electric motor and a gear transmission interposed between the motor and the rear wheels are accommodated in a common housing. The housing is mounted on the vehicle body for tilting movement about the axis of the rear wheels. A kinematic linkage translates the tilting movement of the housing that occurs in automatic response to energization of the motor in the appropriate sense into the movement of the wings and the pivoting of the upper jaw.
    Type: Grant
    Filed: July 12, 1995
    Date of Patent: December 3, 1996
    Assignee: Echo Toys Ltd.
    Inventor: Wai H. Chow
  • Patent number: 5456410
    Abstract: An assembly for supporting trackway sections along which a toy vehicle is driven, includes multiple track support members for supporting single tracks and/or twin tracks, height adaptors for adjusting the height of the trackway sections relative to a support surface, and tilt adaptors for adjusting the angular orientation of the trackway sections relative to the support surface.
    Type: Grant
    Filed: January 31, 1994
    Date of Patent: October 10, 1995
    Assignee: Echo Toys Ltd.
    Inventor: Wai H. Chow