Wheeled platforms

  • US 6,662,889 B2
  • Filed: 04/04/2001
  • Issued: 12/16/2003
  • Est. Priority Date: 04/04/2000
  • Status: Active Grant
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First Claim
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1. A wheeled structure, comprising:

  • a body having at least first and second side portions;

    first and second sets of wheel elements rotatably attached to the first and second side portions, respectively;

    a flipper element pivotally coupled to a portion of the body, said flipper element having wheels elements of said first and second sets of wheels elements rotatably coupled thereto; and

    a drive module integrated in combination with the flipper element to control the movement of the flipper element between a stowed position and a forward position wherein said wheel elements of said flipper element can make selective contact with a ground plane;

    wherein each wheel element of said first and second sets of wheel elements has a defined radius, and a portion of at least one wheel element in each of the first and second sets of wheel elements overlaps a respective adjacent wheel element of said first and second sets of wheel elements with the flipper element in the forward position.

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