Filtering system

Details Filtering system Filtering system

2006-03-28

2006-03-28

Hopkins, Robert A. (Department: 1724)

Gas separation

With inflow gas control or distribution

C055S429000, C055S467000, C055S502000, C055S507000, C055S521000, C015S353000

Reexamination Certificate

active

07018438

ABSTRACT:
A vacuum cleaner having a reduced velocity chamber with a high velocity air inlet, an electric motor, a rotary blade driven by the motor to create a vacuum in the chamber, an outlet for exhausting air from the chamber, which air flows in a selected path from the air inlet, through the chamber and out the air exhaust outlet, a disposable porous sheet filter layer in the chamber for removing large solid particles from the air, and a disposable noncollapsible filter liner in the chamber and connected to the filter.

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Article entitled3M Brand Substrate Blown Microfiber Filter Media, from brochure entitled3M Filtration Products, 1994.

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