Wet vacuum/extractor with vacuum priming system

A - Human Necessities – 47 – L

Patent

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Details

A47L 5/00 (2006.01) A47L 11/34 (2006.01)

Patent

CA 2090991

WET VACUUM/EXTRACTOR WITH VACUUM PRIMING SYSTEM ABSTRACT OF THE DISCLOSURE A wet vacuum/extractor having a first cleaning solution line which extends from a cleaning solution tank to a non-self-priming pump and a second cleaning solution line which extends from the pump to a normally closed fluid flow control valve which controls the flow of liquid on to the cleaning head. The vacuum priming system of the present invention opens the second cleaning solution line to the vacuum generated between the cleaning head and the vacuum fan. This vacuum beyond the output of the pump draws solution from the solution tank into the operating pump. Once the pump is thus primed, the second cleaning solution line is closed to the vacuum and the pump now pumps the solution past the closed fluid flow control valve to the cleaning head.

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