Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1979-05-09
1980-03-18
Moore, Christopher K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15346, 15352, 298 30, E01H 108
Patent
active
041931599
ABSTRACT:
A mobile cleaning apparatus for removing dirt and debris from the surface of parking lots and the like characterized by the ability to quickly and efficiently remove debris from the surface to be cleaned and dump the collected debris into a remote upstanding trash bin. The mobile cleaning apparatus includes a mobile vehicle chassis and a pickup head for gathering the debris comprising a pair of forwardly swept, diverging arms including an air pressure port adjacent each opposing free end thereof and a suction port at the juncture of the arms so that dirt and debris dislodged by the air pressure ports tends to move toward the rearwardly positioned suction port. The mobile cleaning apparatus further includes a collection hopper which is movably mounted on the vehicle chassis having a positively actuated door in the bottom thereof and means for raising the collection hopper to a predetermined rearwardly raised position so that the door may be opened and collected debris dumped into a trash bin. A pneumatic pressure duct extends from each pressure port of the pickup head to the collection hopper and a pneumatic vacuum duct extends from the vacuum port of the pickup head to the collection hopper. An air blower is positioned in the collection hopper and communicates with the upstream end of the pneumatic pressure duct and the downstream end of the pneumatic vacuum duct for creating a partially regenerated air current from the collection hopper to the pickup head and back to the collection hopper.
REFERENCES:
patent: 1181279 (1916-05-01), Williams
patent: 1704043 (1929-03-01), Green
patent: 3105991 (1963-10-01), Oberg
patent: 3406424 (1968-10-01), Rush
patent: 3662427 (1972-05-01), Hanna
patent: 3744653 (1973-07-01), Jensen
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