Vacuum cleaner

Details Vacuum cleaner Vacuum cleaner

2007-03-02

2009-10-13

Hopkins, Robert A (Department: 1797)

Gas separation

Multiple separators, each with discrete and longitudinally...

Combined serial and parallel arrangement

C055S346000, C055S349000, C055S429000, C055S459100, C055SDIG030, C096S380000, C096S382000

Reexamination Certificate

active

07601188

ABSTRACT:
A vacuum cleaner includes at least one cyclone dust separation unit. A cover is formed over the cyclone dust separation unit to attenuate noise generated by the cyclone unit. Dimples or recesses may be formed on the interior of the cover to further attenuate noise. In addition, a noise attenuating material may be inserted between the cyclone dust separation unit and the cover.

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