Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1977-06-20
1979-10-16
Moore, Christopher K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15322, 15353, A47L 1138
Patent
active
041708059
ABSTRACT:
An upright tank partly filled with water is disposed on a wheeled carrier. A box-shaped cover at the top of the tank is provided on the inside with an air exhaust blower and a pump, both are enclosed within an air filter attached to the underside of the cover. A return hose leading to a glass cleaner head opens above the water level within the tank. The pump pumps water percolated by a dirt percolator at the tank bottom to the cleaner through a feed hose to the glass cleaner head extending through the return hose. Dirty air and water from the cleaner return to the tank through the return hose. The blower exhausts the air within the tank therefrom. The exhausted air passes through the air filter.
REFERENCES:
patent: RE27792 (1973-10-01), Howerin et al.
patent: 1661480 (1928-03-01), Keefer
patent: 2233167 (1941-02-01), Holm-Hansen
patent: 2292435 (1942-08-01), Crites
patent: 2909800 (1959-10-01), Grindle et al.
patent: 3195166 (1965-07-01), Wisner
patent: 3896520 (1975-07-01), Williams
Moore Christopher K.
Yugen-Gaisha Waikei Giken
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