Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1981-09-11
1983-08-09
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15339, 219322, 219331, A47L 1134
Patent
active
043970575
ABSTRACT:
Home or residential cleaning apparatus of the hot water or steam extraction type comprising a hot solution tank, a pump for pumping the hot cleaning solution to an applicator nozzle, a wet pick-up vacuum for extracting soiled cleaning solution, an electrical resistance heater of relatively low wattage at the bottom of the solution tank, a thermostat thermally coupled to the heater in series electrical connection therewith set to open at a temperature slightly above the boiling point of the cleaning solution to function as a safety device and also in series with the solution pump, and a signal device provided in parallel with the thermostat.
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Bell Edward L.
Moore Chris K.
Schmidt Edward P.
Smith Robert E.
The Singer Company
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