Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1979-05-07
1981-09-08
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15328, 15353, A47L 700
Patent
active
042876354
ABSTRACT:
A vacuum cleaner for vacuum cleaning wet or dry surfaces is provided which includes an easily removable recovery tank which forms a portion of a vacuum chamber, and into which refuse or dirt picked up by the vacuum cleaner enters through a port arranged above the tank and centered thereover. Various different types of dirt-collecting devices can be used within the recovery tank without requiring any physical connection to or through the recovery tank itself.
REFERENCES:
patent: 3006020 (1961-10-01), Fillery
patent: 3180071 (1965-04-01), Nolte
patent: 3206787 (1965-09-01), Daniels et al.
patent: 3821830 (1974-07-01), Sundheim
patent: 3896520 (1975-07-01), Williams
patent: 4019218 (1977-04-01), Cyphert
patent: 4083705 (1978-04-01), Parise et al.
patent: 4138761 (1979-02-01), Nauta
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