Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1988-10-11
1990-12-11
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15395, 15401, 15414, A47L 902
Patent
active
049760041
ABSTRACT:
Apparatus and method for the removal of deposits from the tank bottom of a hot water heater by employing a cleaning tool adapted to be connected to a suction attachment of a vacuum cleaner and inserted into the tank through an opening in the side of the tank adjacent to the tank bottom. The cleaning tool has a configuration such that it can be manipulated to move its intake end over the tank bottom area.
REFERENCES:
patent: 1120980 (1914-12-01), Schofield
patent: 2198339 (1940-04-01), Hamilton
patent: 2715240 (1955-08-01), Pieper et al.
patent: 4053962 (1977-10-01), McDowell
patent: 4237572 (1980-12-01), Larson
patent: 4694529 (1987-09-01), Choiniere
Farley Joseph W.
Moore Chris K.
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