Liquid purification or separation – Processes – Separating
Reexamination Certificate
2007-03-20
2007-03-20
Cecil, Terry K. (Department: 1723)
Liquid purification or separation
Processes
Separating
C210S333010, C210S108000, C210S350000, C210S351000, C210S352000
Reexamination Certificate
active
10778395
ABSTRACT:
A self-cleaning filter system is disclosed that includes an inlet fitting that is adapted to be inserted into an existing filter body. A spray tube having a plurality of outlets that slideably engages the inlet fitting, is positioned in the ring discs of the existing filter and a compression member proximate to one end of the ring discs applies a compressive force to the ring discs. When fluid enters the spray tube from the inlet fitting compression on the ring discs is reduced to allow the ring discs to separate while fluid pressure is simultaneously imposed on the ring discs through a plurality of outlets to clean the filter component. The parts included with the system may be used to convert a manual filter into a self-cleaning filter system.
REFERENCES:
patent: 984704 (1911-02-01), Rarick
patent: 2440384 (1948-04-01), Schenke
patent: 2538575 (1951-01-01), Kracklauer
patent: 2553820 (1951-05-01), Gunn
patent: 2692686 (1954-10-01), Fleck et al.
patent: 3228524 (1966-01-01), Richards
patent: 3276594 (1966-10-01), Gwilliam
patent: 4042504 (1977-08-01), Drori
patent: 4379058 (1983-04-01), Bolton
patent: 4552655 (1985-11-01), Granot
patent: 4655910 (1987-04-01), Tabor
patent: 4655911 (1987-04-01), Tabor
patent: 4714552 (1987-12-01), Tabor
patent: 4762615 (1988-08-01), Drori
patent: 4776962 (1988-10-01), Wakeman
patent: 4806217 (1989-02-01), Rosenberg
patent: 4935126 (1990-06-01), Drori
patent: 4941971 (1990-07-01), Albright
patent: 5192429 (1993-03-01), Bader
patent: RE34218 (1993-04-01), Drori
patent: 5228993 (1993-07-01), Drori
patent: 5558761 (1996-09-01), Elliot-Moore et al.
patent: 5560820 (1996-10-01), Consolo
patent: 5855799 (1999-01-01), Herrmann
patent: 5882528 (1999-03-01), Davidson
patent: 5984108 (1999-11-01), Choi
patent: 6200467 (2001-03-01), Nagaoka
patent: 6398037 (2002-06-01), Sadan et al.
patent: 6419826 (2002-07-01), Lara et al.
patent: 6576146 (2003-06-01), Fry et al.
patent: 6752920 (2004-06-01), Harris et al.
patent: 2002/0027111 (2002-03-01), Ando et al.
patent: 2002/0130092 (2002-09-01), McCune et al.
patent: 347477 (1989-12-01), None
Disk Filtration: Something Old, Something New, by James F. Prochaska, M.S., P.E., undated.
Netafin USA, Bioline Design Guide.
Arkal Library on Compact Disk.
Prochaska James F.
Prochaska Justin J.
Cecil Terry K.
JNM Technologies, Inc.
Pravel James W.
Pravel Intellectual Property Law, P.C.
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