Dust containment device for surfacing machines

Details Dust containment device for surfacing machines Dust containment device for surfacing machines

2006-06-06

2006-06-06

Nguyen, Dung Van (Department: 3723)

Abrading

Frame or mount

Portable abrader

C451S451000, C451S456000

Reexamination Certificate

active

07056198

ABSTRACT:
A floor machine comprising a motor, a body, and a dust collection system. The dust collection system comprises a skirt, which is coupled to the floor machine and forms a cavity over the body and a floor treatment pad. The skirt includes an air channel device secured to a bottom edge of the skirt. The air channel device encircles the floor treatment pad and comprises a multiplicity of slots between a floor and the skirt. Jointly, the skirt and air channel device confine particles within the cavity. A vacuum for sucking the particles from the cavity creates high velocity air flow through the air channel device. Negative pressure within the cavity prevents particles from escaping. The particles are removed from the cavity through a vacuum tube into the vacuum.

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patent: RE37162 (2001-05-01), Roden
patent: 6240596 (2001-06-01), Kiern

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