Nozzle arrangement for a self-guiding vacuum cleaner

  • US 5,781,960 A
  • Filed: 04/09/1997
  • Issued: 07/21/1998
  • Est. Priority Date: 04/25/1996
  • Status: Expired due to Term
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First Claim
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1. A self-guiding vacuum cleaner comprising a chassis (10) supporting a brush nozzle (50) facing the floor and having a nozzle opening (51) communicating with a chamber (16) in which a dust container (17) is arranged, said chamber being connected to the inlet side of a fan unit (33), a drive system for driving the vacuum cleaner on the floor, said drive system comprising at least two drive wheels (35) which are also arranged to guide the vacuum cleaner on the floor by relative motion of the wheels and an electric control system, wherein the chassis (10) and the nozzle (50) cooperate to provide means (48, 49) for supporting the nozzle (50) in the chassis for vertical movement relative to said chassis.

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