Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Reexamination Certificate
2007-11-13
2007-11-13
Snider, Theresa T. (Department: 1744)
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
C015S319000
Reexamination Certificate
active
10665544
ABSTRACT:
A vacuum cleaner has a housing that includes a separation chamber and collection chamber, a floor unit with a suction opening, and a passage between the suction opening and separation chamber. A suction source establishes a stream of air from the suction opening to the separation chamber for separation of liquids and contaminants. A controller stops the suction source when a level of liquid in the collection chamber rises to a predetermined level. There is a protective structure to shield at least a portion of the controller from circular movement of the liquid in the collection chamber. A structure in the separation chamber defines a path for the stream of air along an internal perimeter of the separation chamber.
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Chui Kam Lun
Griffiths Simon P.
Ma Kam Hoi
Wong Sai Kei
Brinks Hofer Gilson & Lione
Snider Theresa T.
Techtronic Industries Co. Ltd.
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