Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1990-01-23
1990-08-28
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15346, 15368, E01H 108
Patent
active
049513478
ABSTRACT:
Apparatus for cleaning surfaces includes a cleaning head defining an open-faced chamber for facing the surface to be cleaned and means for blowing air into the chamber. A rotary brush is positioned in the chamber for engaging and brushing the surface to be cleaned, and, preferably, the flowing air is directed in a stream that directly impinges the surface to be cleaned adjacent the brush. It is also preferred for the brush to be carried on an arm movable between a first position for engaging the surface to be cleaned and a second position where the brush is spaced from the surface to be cleaned. A control system is provided for power means for moving the brush and arm between the first and second positions, to cause the brush and arm to assume the first position when the motor is on to operate the brush, and to cause the brush and arm to assume the second position when the motor is off.
REFERENCES:
patent: 3007191 (1961-11-01), Braun
patent: 3886623 (1975-06-01), Landesman et al.
patent: 4110864 (1978-09-01), Gunnarson
patent: 4773121 (1988-09-01), Young
"Public Works" dated Sep., 1987-p. 82.
Two page publication by FMC Corporation Sweeper Division Vanguard 7000 heavy duty sweeper.
Brochure-CROSSWIND (TM) 4-Wheel Recirculating Air Street Sweeper by Elgin Sweeper Company-1987.
One page document from Schwarze Industries, Inc. dated spring 1988.
Karas Arvin
Star Roger D.
Elgin Sweeper Co.
Moore Chris K.
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