Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1993-10-14
1994-09-20
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15354, 15359, A47L 530
Patent
active
053476786
ABSTRACT:
A cleaning head assembly for a vacuum cleaning apparatus of the wet, dry and wet/dry types includes a rotatably driven brush carried within and laterally spanning the head assembly. A pair of floating vacuum heads are positioned on opposite sides of a housing for the brush, and each defines a portion of a vacuum pathway having an inlet opening adjacent to the surface to be cleaned, which extends from the inlet opening to a dirt collection zone within the vacuum cleaning apparatus. The floating vacuum heads are each attached to the brush housing in a manner permitting relative movement therebetween. In this regard, a track fixed to the brush housing engages a generally vertically extending flange extending from a vacuum head such that the flange moves within the track to control movement of the vacuum head relative to the brush housing. A roller spaces the flange from the track to minimize frictional contact therebetween, and a stop pin limits relative movement between the vacuum head and the track. A spring is provided to bias the vacuum head downwardly to place the inlet opening adjacent to the surface to be cleaned.
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Jacobs Paul G.
Williams William H.
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