Bagless canister vacuum cleaner

• US 20020011054A1
• Filed: 08/06/2001
• Published: 01/31/2002
• Est. Priority Date: 12/08/1999
• Status: Abandoned Application

• Current Assignee: Yung, Billy
• Original Assignee: Yung, Billy
• Inventors: Yung, Billy
• Application Number:
  US09/922,890
• Publication Number:
  US 20020011054A1
• Time in Patent Office: Days
• US Class Current: 55/467
• CPC Class Codes: A47L 5/28 Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle A47L5/24 takes precedence
• CPC Class Codes: A47L 9/165 Construction of inlets
• CPC Class Codes: A47L 9/1666 with filtering means

Abstract

A bagless vacuum cleaner having a chasse, an air blower and a dust extraction and collection unit is provided. The dust extraction and collection unit has an easily removable inlet chamber and an easily removable outlet chamber. The inlet chamber is substantially cylindrical, and the outlet chamber is disposed concentrically within the upper portion of the inlet chamber. Duct work within the chasse conducts air from the base of the chasse and into the inlet chamber in tangential fashion, such that air swirls about the inside walls of the inlet chamber. Air within the inlet chamber is then allowed to escape from the inlet chamber into the outlet chamber via a plurality of small holes disposed in the side walls of the outlet chamber. Air within the outlet chamber is exhausted to the blower via a top wall opening in the outlet chamber. The outlet chamber contains a vertical, cylindrical filter disposed concentrically within the outlet chamber and a second, planar filter disposed across the top wall opening of the outlet chamber.

Claims

1. A vacuum cleaner comprising:

(a) a chasse having a base unit and a housing unit, the base unit having an air inlet and roller means for moving the vacuum cleaner across a flat surface;

(b) an air blower disposed within the chasse;

(c) a dust extraction and collection unit disposed within the housing unit, the dust extraction and collection unit comprising;

(i) an enclosed inlet chamber, the inlet chamber being substantially cylindrical in shape with an internal diameter between about 130 mm and about 200 mm, the inlet chamber comprising a bottom wall, generally vertical sidewalls, an upper section, a lower section and an air inlet opening, the sidewalls having an interior height between about 200 mm and about 250 mm, the upper section of the inlet chamber having an air inlet opening through the sidewalls; and

(ii) an enclosed outlet chamber disposed concentrically within the upper section of the inlet chamber, the outlet chamber having a bottom wall, a top wall and generally vertical sidewalls, the top wall having a top wall opening, the sidewalls having an interior height between about 50 mm and about 100 mm, the sidewalls also having between about 1000 and about 1500 inlet apertures, each inlet aperture defining an area between about 3 mm² and about 30 mm², the inlet apertures being disposed in a band around the sidewalls of the outlet chamber, the band having a width between about 20 mm and about 50 mm and a median line disposed between about 30 mm and about 100 mm above the bottom wall, the outlet chamber further having an upper section, a lower section and a circular exterior perimeter edge member disposed around the sidewalls in the lower section of the outlet chamber, the exterior edge member having a diameter between about 10 mm and about 60 mm less than the internal diameter of the inlet chamber; and

(d) duct work for serially connecting in fluid communication the air inlet in the base unit, the inlet chamber, the outlet chamber and the air blower;

wherein the components of the vacuum cleaner are as illustrated in the drawings.