Liquid purification or separation – Filter – Medium – cleaner or agitator moved by fluid
Reexamination Certificate
2005-11-01
2005-11-01
Savage, Matthew O. (Department: 1724)
Liquid purification or separation
Filter
Medium, cleaner or agitator moved by fluid
C210S411000, C210S486000, C210S489000, C210S496000, C210S499000, C210S170050
Reexamination Certificate
active
06959817
ABSTRACT:
An industrial, e.g. power plant cooling, water extraction framed cartridge filter system is disclosed with a holed fabric type medium to filter debris from the power plant cooling water. The fabric type filter medium is comprised a one or more strength meshes of nylon or another strong fiber and an inner polypropylene or polyester medium with small holes. The size of the frame and the number and arrangement of the holes are arranged to supply a volume of filtered water consistent with the needs of the application at the typical pressures found therein. For a power plant, a system of many cartridges may be used to provide the total cooling/replacement water needs. Compressed air is introduced into the bottom interior of the cartridges and released via a valve at the top. The compressed air mechanically disturbs the filter medium to knock off any debris that may have attached to the filter medium surface and air escaping via the small holed in the filter may attach to and float small pieces of debris away. Each cartridge is fitted into a manifold conduit with cutoff valves to allow service of the cartridges.
REFERENCES:
patent: 330154 (1885-11-01), Oldham
patent: 1662726 (1928-03-01), Jean
patent: 2249063 (1941-07-01), Swem
patent: 2326484 (1943-08-01), Moreton
patent: 2549363 (1951-04-01), Blickman
patent: 2568085 (1951-09-01), Naugle
patent: 3347383 (1967-10-01), Augerot
patent: 5064536 (1991-11-01), Bratten
patent: 5103261 (1992-04-01), Matsuo et al.
patent: 5200072 (1993-04-01), Frejborg et al.
patent: 5279734 (1994-01-01), Nehls
patent: 5407574 (1995-04-01), Hensley
patent: 5738788 (1998-04-01), Tokiwa et al.
patent: 6109450 (2000-08-01), Gruenwald et al.
patent: 6182833 (2001-02-01), Zittel
patent: 6183646 (2001-02-01), Williams et al.
patent: 6485229 (2002-11-01), Gunderson et al.
International Search Report, International Application No. PCT/US 02/21966 (all pages).
Claypoole George T.
Morrison Dugald L. M.
Cesari and McKenna LLP
Orion Power Holdings
Paul, Esq. Edwin H.
Savage Matthew O.
LandOfFree
Cooling makeup water intake cartridge filter for industry does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cooling makeup water intake cartridge filter for industry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cooling makeup water intake cartridge filter for industry will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3472564