US 7,320,150 B2
Automatic dust pan broom
Pierre Stewart, 2625 Chateauguay, app. 101, Montreal, Quebec H3K 3KI (Canada)
Filed on Jul. 14, 2004, as Appl. No. 10/890,835.
Prior Publication US 2005/0015919 A1, Jan. 27, 2005
Int. Cl. A47L 9/02 (2006.01)
U.S. Cl. 15—344  [15/350; 15/398; 15/410] 7 Claims
OG exemplary drawing
 
1. A broom (20) which permits dust collection and disposal by an operator which remains standing up, said broom comprising: a hollow aspiration tubing (26) consisting of a cylindrical wall (30) comprising a lower opening (25) and an upper opening (28), a brush (22) situated towards the lower end (24) which comprises an opening corresponding to said lower opening, to permit the flowing of air to the inside of said aspiration tubing, a removable cap (28) to open and close said upper opening, air aspiration means that may be activated to cause an airflow from said lower opening up inside the aspiration tubing, and out of the aspiration tubing, said aspiration means being localized outside of said aspiration tubing and comprising means to keep dust particles inside said tubing while air flows out, retention means to keep dust particles inside said aspiration tubing when said aspiration ceases, said retention means permitting said dust particles to flow out by said upper opening when said cap is removed and said broom is turned upside-down, wherein said retention means consist of a number of dust collectors consisting of discs which are installed along said wall thus leaving a central channel for air and dust circulation.