Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1999-06-10
2000-08-29
Snider, Theresa T.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15344, A47L 514
Patent
active
061088633
ABSTRACT:
A vacuum cleaner with dual blowing/suction function includes a main housing having at least one air inlet and at least one air outlet; at least one fan mounted in the main housing and having a suction side adjacent to the air inlet and a blowing the adjacent to the air outlet; a motor disposed in the main body for driving the fan; a tubular member having a first open end connected to the air inlet and a second open end; a blowing duct extending inside the tubular member and having a spout adjacent the second open end; a blowing pipe having an inner end connected to the air outlet and an outer end connected in fluid communication with the blowing duct; and a dust collecting member and a filter member disposed between and connected to the tubular member and the air inlet of the main housing. In operation, a suction air stream and a blowing air stream are simultaneously generated in the second open end of the tubular member, the blowing air stream serving to stir the dirt and dust particles in an article to be cleaned while the suction air stream draws in the air along with the stirred dirt and dust particles into the dust collecting member.
REFERENCES:
patent: 1383455 (1921-07-01), Farnsworth
patent: 2064344 (1936-12-01), Good
patent: 2224202 (1940-12-01), Smellie
patent: 2238541 (1941-04-01), Spagnolo
patent: 2272579 (1942-01-01), Chamberlin et al.
patent: 3268942 (1966-08-01), Rossnan
patent: 3694848 (1972-10-01), Alcala
patent: 4175352 (1979-11-01), Catlett
patent: 5613269 (1997-03-01), Miwa
patent: 5722111 (1998-03-01), Sowell et al.
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