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Surface traversing apparatus and method

  • US 6,964,312 B2
  • Filed: 10/07/2003
  • Issued: 11/15/2005
  • Est. Priority Date: 10/07/2003
  • Status: Active Grant
First Claim
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1. A surface traversing apparatus adapted to be adhered to a surface by a partial vacuum, the apparatus comprising:

  • a frame forming a chamber;

    a seal having a substantially closed seal perimeter defining an opening of the chamber, the seal perimeter adapted substantially for rolling relative to the chamber and for contact with the surface to be traversed to prevent leakage and maintain a seal with the surface; and

    a drive configured to move the apparatus relative to the surface.

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