Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1991-04-29
1992-05-05
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15395, 15406, A47L 538, B08B 104
Patent
active
051095670
ABSTRACT:
A main hose has one end which supports a hub and outward extending tubular members for rotation. Said one end of the main hose has inlet openings and the other end is coupled to a vacuum blower. A second smaller diameter hose extends into the main hose and has one end connected to the hub and the other end connected to a compressor. The compressor is operated to inject air through the second hose and through the rotatable tubular members for rotating the hub and the tubular members and for injecting air outward through the tubular member onto the walls of the duct to be cleaned. The vacuum blower is operated to form reduced air pressure in the main hose to withdraw the loosened material by way of the inlet openings at said one end and through the main hose by way of the vacuum blower.
REFERENCES:
patent: 1869730 (1932-08-01), Antle
patent: 3946459 (1976-03-01), Armstrong
patent: 4792363 (1988-12-01), Franklin et al.
patent: 4800616 (1989-01-01), Wade
patent: 4984329 (1991-01-01), Wade
patent: 5020188 (1991-06-01), Walton
Moore Chris K.
Steamatic, Inc.
Zobal Arthur F.
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