Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1995-07-12
1996-11-05
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
153272, 15339, 55216, A47L 700
Patent
active
055704891
ABSTRACT:
A liquid extraction device for a vacuum cleaner includes a base equipped with wheels, a container having an opening and a closed bottom end received on the base, a cover sealedly mounted over the opening of the container and a filter assembly fixedly attached to and below the cover. The cover has a connecting port adapted to be connected to the vacuum cleaner. The container has a sucking port adapted to be connected to a working head and a deflector neighboring the sucking port and extending toward the bottom end of the container. A float is mounted on the filter assembly whereby when liquid in the container has reached a predetermined level, the float will be lifted to block the connecting port of the cover.
REFERENCES:
patent: 2867231 (1959-01-01), Gerstmann
patent: 3775951 (1973-12-01), Eicholz et al.
patent: 4055405 (1977-10-01), Thun-Hohenstein
patent: 4226000 (1980-10-01), Tribolet
patent: 4246676 (1981-01-01), Hallsworth et al.
patent: 4538971 (1985-09-01), Miller et al.
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