Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1992-08-14
1994-05-24
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15398, A47L 906
Patent
active
053136870
ABSTRACT:
An elongated body, has internally formed a plenum chamber opening to one face of the body. A pair of side brushes mounted on the face projected outwardly thereof and being spaced laterally from each other and extending over the major length of the body. A pair of longitudinally opposed end brushes spanned transversely across the body face from one side brush to the other project outwardly of the one face in the direction of the side brushes and form with the side brushes a vacuum chamber. The tips of the side brushes are formed of bristles of a length in excess of the length of bristles formed by the side brushes, and are engageable with laterally opposed longitudinally extending opposite side edges of planar ceiling fan blades. The side brushes are spaced from each other a distance generally equal to the lateral width of the ceiling fan blades. Locking plates fixed to the body project outwardly from opposite ends of the body longitudinally outside of the end brushes and in contact therewith such that the ceiling fan brush is effectively locked by the locking plates to the opposite side edges of the fan blade to facilitate dust removal from the surface of the fan blade enveloped by the ray of side brushes and end brushes while mechanically guiding the ceiling fan brush during travel longitudinally over the surface of the ceiling fan blade from one end to another.
REFERENCES:
patent: 4685170 (1987-08-01), Ahlf et al.
patent: 4823431 (1989-04-01), Carpenter
patent: 5235722 (1993-08-01), Harris et al.
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