Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1978-08-21
1979-12-25
Moore, Christopher K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15353, 55216, 55218, A47L 700
Patent
active
041797680
ABSTRACT:
A dumping system for a wet/dry tank type vacuum cleaner which functions to empty the liquid solution together with the dirt and debris accumulated in the tank. The dumping system is controlled by the operator who can selectively regulate the air flow and thereby control the dumping action of the system. The dirty liquid solution is pumped out of the intake hose of the vacuum cleaner.
REFERENCES:
patent: 2586144 (1952-02-01), Benoit
patent: 2643732 (1953-06-01), Keen
patent: 3009188 (1961-11-01), Martin
patent: 3331090 (1967-07-01), Reiber et al.
Aktiebolaget Electrolux
Miller Alfred E.
Moore Christopher K.
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