Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1989-04-21
1990-08-14
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15301, 15303, 55DIG18, 981151, A47L 538
Patent
active
049475100
ABSTRACT:
A vacuum box is for collecting small particles or the like. the vacuum box includes a cabinet having a front, a rear and a hollow interior. The front of the cabinet includes a substantially horizontal working surface at a lower region thereof. The working surface includes an air inlet opening therethrough. A motor and fan are disposed within the hollow interior of the cabinet at the rear thereof for the discharge of air from the hollow interior of the cabinet. A collection compartment is disposed below the working surface and the air inlet opening therethrough with a rear portion of the collection compartment being disposed within the interior of the cabinet. A filter is disposed within the interior of the cabinet between the collection compartment and the fan. The fan causes the air including the particles produced at the working surface to be drawn downwardly through the air inlet opening into the collection compartment, upwardly from the rear portion of the collection compartment, and through the filter. A substantial portion of the particles remain in the collection compartment and a remaining portion of the particles are collected on the filter. The collecting compartment is accessible for selectively removing the substantial portion of the particles from the collecting compartment.
REFERENCES:
patent: 3295298 (1967-01-01), Mackey
patent: 3880061 (1975-04-01), Hensiek et al.
patent: 4490881 (1985-01-01), Schmidt
patent: 4594747 (1986-06-01), Dempsey
patent: 4596060 (1286-06-01), Schmidt et al.
patent: 4607413 (1986-08-01), Schmidt et al.
patent: 4647295 (1987-03-01), Christ
Moore Chris K.
Sherman James L.
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