Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1996-07-12
1998-12-22
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15321, A47L 700
Patent
active
058506683
ABSTRACT:
A vacuum cleaner has an electric motor driving an air impeller that creates low pressure inside the tank of the vacuum cleaner. The motor also drives a pump impeller which is located in the tank and draws liquid material from the bottom of the tank and expels it from the tank. Near an inlet to the pump is a priming mechanism having bellows which are compressed to force liquid material up into the pump. Portions of the pump, including the inlet and the outlet as well as the priming mechanism, are attached to a tank extension which fits over the top of the tank. The lid of the vacuum cleaner, which carries the motor and air impeller, fits over the tank extension when the vacuum cleaner is used for liquid material. The tank extension and its associated pump components are removable from the tank to facilitate use of the vacuum cleaner on dry material.
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Berfield Robert C.
Buss Randy L.
Seasholtz Craig A.
Moore Chris K.
Shop Vac Corporation
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