Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Reexamination Certificate
2007-01-17
2011-10-11
Wilson, Lee D (Department: 3723)
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
Reexamination Certificate
active
08032984
ABSTRACT:
The present invention provides a vacuum cleaner having an inlet (26) for dirty air, an outlet (24) for clean air, and a filter (44) located in fluid communication between the inlet and the outlet. A motor drives a fan for moving air into the inlet and through the filter to the outlet. A filter cleaning mechanism for removing dirt from the filter is provided and is operatively associated with an on/off switch for the fan motor or alternatively a separate user-operated switch, whereby operation of the switch results in operation of the filler cleaning mechanism.
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Pears Barry
Rowntree David
Black & Decker Inc.
Daniel Jamal
Wilson Lee D
Yun John
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