Wheel support arrangement for an autonomous cleaning apparatus

  • US 7,275,280 B2
  • Filed: 02/25/2002
  • Issued: 10/02/2007
  • Est. Priority Date: 02/28/2001
  • Status: Active Grant
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First Claim
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1. An assembly by means of which a carrier may move over a surface irrespective of obstructions or obstacles on the surface, the assembly comprising a motive means for engaging and moving over the surface so as to transport the carrier when the motive means is in an operative mode with the carrier, the motive means being adapted for displacement in both upward and downward directions and actuating means associated with the motive means for actuating a control mechanism when the motive means is in the operative mode and the motive means is in a predetermined position along its path of upward and downward movement.

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