Liquid purification or separation – With gas-liquid surface contact means
Reexamination Certificate
2005-09-06
2005-09-06
Upton, Christopher (Department: 1724)
Liquid purification or separation
With gas-liquid surface contact means
C210S232000, C210S615000
Reexamination Certificate
active
06939462
ABSTRACT:
A wastewater trickle tower has at least one biomedia grate including pairs of upper hanger bars, pairs of lower hanger bars, and spaced-apart rows of biomedia strands, preferably looped cord strands, connecting the upper and lower hanger bars. Upper ends of the strands are secured between pairs of the upper hanger bars, and lower ends of the strands are secured between pairs of the lower hanger bars. A base receptacle to collect wastewater is disposed below the grate. The upper hanger bars are secured together as a unit, the lower hanger bars are secured together as a unit, and a tensioning arrangement is provide for tensioning the strands by influencing the upper and lower hanger bars apart. The grate may be mounted in and surrounded by a rigid casing so forming a self-supporting filter unit. Two or more such casings may be stackable one upon the other to form a trickle tower two of more filter units high.
REFERENCES:
patent: 2008507 (1935-07-01), Laughlin
patent: 2308866 (1943-01-01), Dekema
patent: 3231490 (1966-01-01), Fry
patent: 3238124 (1966-03-01), Burton
patent: 3275147 (1966-09-01), Gilde
patent: 3835039 (1974-09-01), Ciambrone
patent: 4088571 (1978-05-01), Helgesson
patent: 4411780 (1983-10-01), Suzuki et al.
patent: 4422930 (1983-12-01), Hatanaka
patent: 4451362 (1984-05-01), Spelsberg
patent: 4717519 (1988-01-01), Sagami
patent: 4729828 (1988-03-01), Miller
patent: 4895645 (1990-01-01), Zorich, Jr.
patent: 4929484 (1990-05-01), Basse
patent: 5085766 (1992-02-01), Born
patent: 5389248 (1995-02-01), Pare et al.
patent: 5397474 (1995-03-01), Henry
patent: 5399266 (1995-03-01), Hasegawa et al.
patent: 5622630 (1997-04-01), Romano
patent: 5976377 (1999-11-01), Hyfantis, Jr. et al.
patent: 6238563 (2001-05-01), Carroll, II et al.
patent: 6241889 (2001-06-01), Haley, III
patent: 6274035 (2001-08-01), Yuan et al.
patent: 6319407 (2001-11-01), Maatta et al.
Steele and McGhee, “Water Supply and Sewerage,” 1979, p. 492.
Bioprocess Technologies, Ltd.
Harris Jonathan A.
Upton Christopher
Wildman Harrold Allen & Dixon LLP
LandOfFree
Wastewater trickle tower biomedia with casing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wastewater trickle tower biomedia with casing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wastewater trickle tower biomedia with casing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3428841