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Vacuum cleaner with combined filter element and collection unit

DC
  • US 5,664,285 A
  • Filed: 01/11/1996
  • Issued: 09/09/1997
  • Est. Priority Date: 01/11/1996
  • Status: Expired due to Term
First Claim
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1. In a vacuum cleaner having a housing, a motor located in the housing, an impeller connected to the motor, and a debris collection unit removably connected to the housing, the improvement comprising:

  • the collection unit having a frame, a cover and a filter element, the cover being removably connected to the frame to substantially close an open side of the frame, the cover having an exit aperture therethrough, and the filter element being permanently connected to an inside surface of the cover over the exit aperture;

    the frame having a mounting flange surrounding the open side of the frame, the cover being mounted on the mounting flange;

    the cover having a mounting flange receiving slot for receiving the mounting flange therein and frictionally connecting the cover to the frame; and

    said mounting flange and said slot having a generally rectangular shape, with key means to allow connection of the cover to the frame in only one position.

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