Other

Esteam Manufacturing Ltd.

Frank Goodman

David Martin Harvey

Dave Harvey

Bill Hendrix

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 system 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 system 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.

Duct cleaning device

The present invention relates to an efficient duct cleaning apparatus that is readily adaptable for use in both rectangular and round ducts. In one embodiment, the invention provides a brush member with a hollow channel along the lower surface of the brush that enables dirt and debris within a ventilation system to be readily dislodged and removed by vacuum. The brush is also provided with an adaptor that enables rapid exchange of brushes from the vacuum source in order that the duct cleaning apparatus may be adapted for use in ducts having different sizes and profiles.

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Calgary, Canada

Frank Goodman