Self-propelled cleaning device and charger using the same

  • US 7,418,762 B2
  • Filed: 03/04/2004
  • Issued: 09/02/2008
  • Est. Priority Date: 03/05/2003
  • Status: Expired due to Fees
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First Claim
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1. A charger for a self-propelled cleaning device comprising:

  • power supply means for supplying power from a commercial power source, to be provided to a power source provided in said self-propelled cleaning device,a first contact for electrically connecting said power supply means with a second contact provided in said self-propelling cleaning device,guide means for guiding movement of said self-propelled cleaning device, to connect said second contact of said self-propelled cleaning device to said first contact, andsuction means and dust collection means for removing dust collected in a dust collection case carried by said self-propelled cleaning device,whereinsaid guide means forms a dust suction port which communicates to said dust collecting means, and opposes to a dust ejection port of said duct collection case.

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