Chemistry: molecular biology and microbiology – Apparatus – Bioreactor
Reexamination Certificate
2005-05-17
2005-05-17
Redding, David A. (Department: 1744)
Chemistry: molecular biology and microbiology
Apparatus
Bioreactor
C405S036000, C405S039000, C405S052000
Reexamination Certificate
active
06893864
ABSTRACT:
An apparatus for forcing airflow through (i.e., aerating) a particulate material consists of a planar bearing surface and a ventilation conduit underlying the planar bearing surface. A plurality of delivery conduits extend between the ventilation conduit and the planar bearing surface with a mouth of the delivery conduits being near the planar bearing surface. A grate, defining a plurality of openings, covers the mouth of each delivery conduit. Each grate has a top surface substantially parallel to the planar bearing surface and positioned at or no more than a select distance below the planar bearing surface. This select distance is close enough to the planar bearing surface to prevent the accumulation of particulate material over the grate as the particulate material is scraped from the planar bearing surface with an implement having a linear edge abutting the planar bearing surface.
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CH2M Hill Inc.
Redding David A.
Swanson & Bratschun LLC
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