Liquid purification or separation – With gas-liquid surface contact means
Reexamination Certificate
2006-10-20
2009-02-17
Upton, Christopher (Department: 1797)
Liquid purification or separation
With gas-liquid surface contact means
C210S541000, C210S615000, C261SDIG072
Reexamination Certificate
active
07491325
ABSTRACT:
An assembly for supporting biomass for treating sludge or wastewater includes a first corrugated sheet having crests and valleys, a second corrugated sheet having crests and valleys and an intermediate member mounted between the first and second corrugated sheets. The crests have peak surfaces and the valleys have trough surfaces. The first corrugated sheet has a first longitudinal axis and the second corrugated sheet has a second longitudinal axis. The corrugations of the first corrugated sheet define a first corrugation angle of about zero degrees (0°) to about forty-five degrees (45°) relative to the first longitudinal axis and the corrugations of the second corrugated sheet define a second corrugation angle of about zero degrees (0°) to about forty-five degrees (45°) relative to the second longitudinal axis. The second corrugated sheet is mounted to the first corrugated sheet and the intermediate member has openings therein.
REFERENCES:
patent: 3618778 (1971-11-01), Benton et al.
patent: 3904525 (1975-09-01), Rosenberg
patent: 4437988 (1984-03-01), James
patent: 4597916 (1986-07-01), Chen
patent: 4599174 (1986-07-01), McDowell
patent: 4666593 (1987-05-01), Bosne
patent: 5326475 (1994-07-01), Kent
patent: 5384178 (1995-01-01), Rye
patent: 5389247 (1995-02-01), Woodside
patent: 5545327 (1996-08-01), Volland
patent: 5771716 (1998-06-01), Schlussel
patent: 6280819 (2001-08-01), McKeigue et al.
patent: 6544628 (2003-04-01), Aull et al.
patent: 6811700 (2004-11-01), Austin et al.
patent: 6869534 (2005-03-01), McDowell et al.
patent: 6878280 (2005-04-01), McDowell et al.
patent: 6942788 (2005-09-01), Cox et al.
patent: 7083324 (2006-08-01), Van Drie
Hartung Robert W.
Krell Timothy E.
Kulick, III Frank M.
McDowell Curtis S.
Brentwood Industries, Inc.
Panitch Schwarze Belisario & Nadel LLP
Upton Christopher
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