B - Operations – Transporting – 08 – B
Patent
B - Operations, Transporting
08
B
B08B 9/04 (2006.01) F23J 3/02 (2006.01)
Patent
CA 2285660
A duct cleaning device including a flexible conduit having a first end and a second end with inlets at first end and outlets at second end to allow air to circulate within the conduit. A whipper located at first end is rotated by a drive shaft, housed within the conduit, and powered by an air-activated drive means located near to the whipper at first end of the conduit. A stationary circular brush is also located around the conduit near its first end. In operation, the air-activated drive means is activated by air passing though the conduit preferably when a vacuum is applied. The vacuum is created a pressure reducing air pump to which the second end of the conduit is attached. The device may be mounted with a dolly, and displaced within a duct using rods attached to the dolly. The loosened debris generated by the action of the whipper and brush on the internal surfaces of the duct are aspirated through the inlets and into the conduit by the vacuum.
Goodman Frank
Harvey Dave
Esteam Manufacturing Ltd.
Gowling Lafleur Henderson Llp
LandOfFree
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