Sifting apparatus with filter rotation and particle collection

Details Sifting apparatus with filter rotation and particle collection Sifting apparatus with filter rotation and particle collection

2007-08-08

2010-11-16

Smith, Duane (Department: 1797)

Gas separation

Mounted or supported for continuous motion

C055S330000, C055S337000, C055S401000, C055S428000, C209S233000, C209S288000

Reexamination Certificate

active

07833303

ABSTRACT:
Sifting apparatus, for sifting solid particles from a gaseous or liquid fluid, having a rotating conical filter and fan blade assembly connected to the filter exterior, both rotated together by a motor/pulley assembly, the fan blades slanted in a direction opposite the rotation direction, so that air is drawn through the filter from its interior to its exterior, having an inlet for admission of air only at the narrow end of the filter, and having a receptacle for collection of the particles at the broad end of the filter. Applications include cleaning of particle contaminants from air; cleaning beach sand by sifting out broken glass, sea weed or other debris; extraction of mineral particles from water slurry; collection of soil samples picked up by an air stream; lawn maintenance collection of weeds, leaves and burrs; biohazard removal operations; and an alternative to auger food particle transport in food processing.

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