A - Human Necessities – 47 – L
Patent
A - Human Necessities
47
L
A47L 9/00 (2006.01) A47L 5/36 (2006.01) A47L 7/06 (2006.01) A47L 9/12 (2006.01) A47L 9/24 (2006.01)
Patent
CA 2710893
A hovering vacuum cleaner comprising: a front and rear, a top and bottom, said vacuum cleaner having a base disposed proximate the bottom thereof, said base also having a top and bottom, said vacuum cleaner carrying a fan for moving air through said vacuum cleaner, said base having disposed proximate the bottom thereof an air handling circuit to permit the vacuum cleaner to hover over a surface being vacuumed on a cushion of air provided by said fan, said vacuum cleaner including an exhaust port passing through said base and in communication with the fan and the air handling circuit, the air passing from the fan through the exhaust port to the air handling circuit, said air handling circuit being defined by a perimeter portion of said base extending around the perimeter of the bottom of said base, a central portion disposed proximate the middle of the bottom of said base containing said exhaust port and disposed at a height above said perimeter portion of the bottom of said base, and a channel portion disposed between said perimeter portion and said central portion at a height above the central portion and at a predetermined channel depth, said channel portion substantially circumscribing the bottom of said base but being discontinuous proximate the rear of said vacuum cleaner base whereat the central portion extends to the perimeter portion, wherein said air handling circuit is sized to substantially balance with the volume of air being moved by said fan through said vacuum cleaner and thus providing improved hovering capability of said vacuum cleaner as air passes from said exhaust port over said central portion and about said channel portion thus providing a cushion of air upon which said vacuum cleaner hovers.
Heenan Blaikie Llp
Van Den Heuvel Cristiaan
LandOfFree
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