Wall racer toy vehicles

  • US 10,398,995 B2
  • Filed: 06/09/2017
  • Issued: 09/03/2019
  • Est. Priority Date: 12/30/2004
  • Status: Active Grant
First Claim
Patent Images

1. A toy vehicle comprising:

  • a chassis comprising an undersurface, the chassis configured to be operably coupled to at least one wheel that is configured to move on a surface;

    a first power source configured to drive the at least one wheel; and

    a second power source configured to drive a fan that is configured to draw air from a volume between the undersurface and the surface, the drawing of the air by the fan inducing a downforce urging the chassis towards the surface, the air drawn by the fan from between the undersurface and the surface being continuous free flowing air, the volume between the undersurface and the surface comprising an entry portion, an exit portion connected to a fan duct operably coupled to the fan, and a transition portion between the entry portion and the exit portion, the undersurface being flat and structurally smooth in the transition portion, the volume having a smaller cross section in the flat transition portion than in either the entry portion or the exit portion.

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