Autonomous mobile surface treating apparatus

  • US 6,481,515 B1
  • Filed: 05/30/2000
  • Issued: 11/19/2002
  • Est. Priority Date: 05/30/2000
  • Status: Expired due to Fees
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First Claim
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1. An autonomous mobile surface treating apparatus for treating a supporting surface, comprising:

  • a chassis;

    a drive mechanism mounted to said chassis by a suspension;

    a substantially rigid shell movably mounted to said chassis;

    said suspension including a resilient member interposed between said drive mechanism and said chassis so that when said shell is pushed toward the supporting surface with a predetermined force said resilient member compresses to permit said drive mechanism to move relative to said chassis and at least one of said shell and said chassis to contact the supporting surface.

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