Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1990-08-28
1992-03-31
Hornsby, Harvey C.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15353, 15401, 15414, 15420, A47L 524, A47L 910, A47L 500, A47L 906
Patent
active
050995456
ABSTRACT:
A vacuum cleaner includes a motor, a housing enclosing the motor, a fan driven by the motor for producing a vacuum, a canister removably attached to the front end of the housing and having an intake nozzle for reception of foreign matter, liquid and air drawn into the canister in response to the vacuum developed by the fan. The intake nozzle includes a converging section extending from the front of the nozzle towards the center thereof and a diverging section extending from the terminus of the converging section towards the terminus of the nozzle. A squeegee is disposed in said nozzle and has a main body portion including at least one flow passage defined by a forward converging section terminating in a generally constant diameter section. The end of said constant diameter section is generally aligned with the terminus of the converging section of the nozzle. A flapper valve overlies the end of said constant diameter section of said squeegee and is integrally molded with said main body portion.
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Krasznai Charles Z.
Mallow John B.
Black & Decker Inc.
Deutsch Barry E.
Hornsby Harvey C.
Soohoo Tony G.
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