Cleaning and liquid contact with solids – Processes – Using solid work treating agents
Patent
1977-02-04
1978-10-17
Roberts, Edward L.
Cleaning and liquid contact with solids
Processes
Using solid work treating agents
15 83, 134121, F01H 104
Patent
active
041203119
ABSTRACT:
Vacuum operated debris removal apparatus for a power broom comprises an enclosed hopper for collecting debris swept up by the power broom and vacuum removal apparatus for continuously removing the debris from the hopper and conveying the debris away from the apparatus. The hopper has an outlet in the bottom thereof and inclined sides leading to the outlet, so that debris collected in the hopper is urged by gravity toward the outlet. A vacuum manifold is attached to the outlet for applying a vacuum to the outlet. The hopper is independently supported on wheels and attached to the power broom such that the debris removal apparatus can be moved over the surface being cleaned along with the power broom without having the weight of the debris removal apparatus being carried by the brush of the power broom. This support mechanism is adjustable to vary the height of the hopper with respect to the power broom. The hopper is attached to the power broom by means of a pivotable attachment mechanism that permits the apparatus to be operated over uneven surfaces without affecting the performance of the power broom. The hopper encloses the front side of the power broom and a depending flexible skirt extends around the rest of the periphery of the rotating brush of the power broom, such that all dust and debris swept up by the power broom are retained within the debris removal apparatus.
REFERENCES:
patent: 485577 (1892-11-01), Ethridge
patent: 2263722 (1941-11-01), Drumm
patent: 3833961 (1974-09-01), Fortman et al.
patent: 3837029 (1974-09-01), Kasper
patent: 3876260 (1975-04-01), Moss et al.
patent: 3955236 (1976-05-01), Mekelburg
Dunham Charles L.
Kiernan Thomas H.
Gravel-Vac Service Co., Inc.
Roberts Edward L.
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