Liquid purification or separation – Particulate material type separator – e.g. – ion exchange or...
Reexamination Certificate
2006-08-15
2006-08-15
Smith, Duane (Department: 1724)
Liquid purification or separation
Particulate material type separator, e.g., ion exchange or...
C210S264000, C210S269000, C210S270000, C210S271000, C210S274000, C210S275000, C210S279000, C210S284000, C210S286000, C210S293000, C210S232000, C210S793000, C210S794000, C210S795000
Reexamination Certificate
active
07090771
ABSTRACT:
The invention is directed to a filter underdrain for supporting a filter media between at least two dividers forming at least one cell, which includes at least one porous plate for supporting the filter media for filtering a fluid, the porous plate spanning across at least one of the dividers; and a plurality of support members beneath the porous plate, the support members containing at least one port for draining the fluid after the fluid passes through the porous plate. The porous plates may be bound together by a lap joint and an end section may be included between at least two of the support members, the end section containing at least one pocket for holding the porous plate.
REFERENCES:
patent: 2302450 (1942-11-01), Laughlin
patent: 3984326 (1976-10-01), Bendel
patent: 4211656 (1980-07-01), Cochrane
patent: 5078873 (1992-01-01), Black et al.
patent: 5089130 (1992-02-01), Nichols
patent: 5618421 (1997-04-01), Sorosinski
patent: 6261453 (2001-07-01), Savage
patent: 6325931 (2001-12-01), Roberts et al.
patent: 6423216 (2002-07-01), Yum et al.
patent: 6569327 (2003-05-01), Roberts et al.
patent: 6569328 (2003-05-01), Haggard
Brittingham, Jr. Louis U.
Dyson John D.
Jessop Jack H.
Johnson, Jr. Harold W.
Matanoski Gregory
DLA Piper Rudnick Gray Cary US LLP
Infilco Degremont Inc.
Pham Minh-Chau T.
Smith Duane
LandOfFree
Filtration system underdrain does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Filtration system underdrain, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filtration system underdrain will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3665918