Liquid purification or separation – Diverse distinct separators – Including a filter
Reexamination Certificate
2005-11-08
2005-11-08
Prince, Fred G. (Department: 1724)
Liquid purification or separation
Diverse distinct separators
Including a filter
C210S416100, C210S460000, C210S489000, C210S493200, C210S501000, C210S503000
Reexamination Certificate
active
06962660
ABSTRACT:
A filter system for spas and swimming pools is disclosed having a primary filter containing a porous membrane made of multiple plies. A fluid purifying medium in the form of irregularly shaped copper and zinc alloy particles is captured between the plies and placed in contact with the spa water to kill bacteria and remove heavy metals, precipitates and chlorine as the water cycles through the filter. A micro filter for filtering particles surrounds the primary filter, the micro filter and primary filter are mounted in a chamber in fluid communication with the spa or pool. Another particulate filter is positioned upstream of the micro filter and primary filter. A secondary micro filter and primary filter provide filter capacity augmentation through a parallel flow path during periods of increased demand.
REFERENCES:
patent: 1011482 (1911-12-01), Pemberton
patent: 1140726 (1915-05-01), Warden
patent: 2782933 (1957-02-01), Monsarrat
patent: 2785805 (1957-03-01), Hough
patent: 3152077 (1964-10-01), Kryzer
patent: 3178024 (1965-04-01), Jacuzzi
patent: 3295680 (1967-01-01), Wilber
patent: 3295681 (1967-01-01), Rubert et al.
patent: 3303933 (1967-02-01), Huff
patent: 3457339 (1969-07-01), Pall et al.
patent: 3474817 (1969-10-01), Bates et al.
patent: 3540592 (1970-11-01), Derreumaux
patent: 3664095 (1972-05-01), Asker et al.
patent: 3715037 (1973-02-01), Hu et al.
patent: 3842870 (1974-10-01), Burgess
patent: 3950251 (1976-04-01), Hiller
patent: 3977967 (1976-08-01), Trulson et al.
patent: 4416854 (1983-11-01), Nielsen
patent: 4584106 (1986-04-01), Held
patent: 4610783 (1986-09-01), Hudson
patent: 4642192 (1987-02-01), Heskett
patent: 4704202 (1987-11-01), Poyner
patent: 4752401 (1988-06-01), Bodenstein
patent: 4773998 (1988-09-01), Heinrich
patent: 4783271 (1988-11-01), Silverwater
patent: 4909937 (1990-03-01), Hoffmann et al.
patent: 4936979 (1990-06-01), Brown
patent: 4950400 (1990-08-01), Girondi
patent: 4956089 (1990-09-01), Hurst
patent: 4986906 (1991-01-01), Dadisman
patent: 5008011 (1991-04-01), Underwood
patent: 5017286 (1991-05-01), Heiligman
patent: 5081954 (1992-01-01), Monus
patent: 5092990 (1992-03-01), Muramatsu et al.
patent: 5092993 (1992-03-01), Goodwin
patent: 5102539 (1992-04-01), Siegfried
patent: 5118655 (1992-06-01), Pedersen
patent: 5122274 (1992-06-01), Heskett
patent: 5135654 (1992-08-01), Heskett
patent: 5149437 (1992-09-01), Wilkinson et al.
patent: 5152464 (1992-10-01), Farley
patent: 5190659 (1993-03-01), Wang et al.
patent: 5198118 (1993-03-01), Heskett
patent: 5236595 (1993-08-01), Wang et al.
patent: 5269926 (1993-12-01), Webster et al.
patent: 5269932 (1993-12-01), Heskett
patent: 5275737 (1994-01-01), Heskett
patent: 5275743 (1994-01-01), Miller et al.
patent: 5279748 (1994-01-01), Hackett
patent: 5314623 (1994-05-01), Heskett
patent: 5415770 (1995-05-01), Heskett
patent: 5433856 (1995-07-01), Heskett
patent: 5492623 (1996-02-01), Ishibe
patent: 5510034 (1996-04-01), Heskett
patent: 5593574 (1997-01-01), VanToever
patent: 5599454 (1997-02-01), Heskett
patent: 5605631 (1997-02-01), Barri et al.
patent: 5665228 (1997-09-01), Leaverton et al.
patent: 5674393 (1997-10-01), Terhune et al.
patent: 5759400 (1998-06-01), Fanning
patent: 5788858 (1998-08-01), Acernese et al.
patent: 5830360 (1998-11-01), Mozayeni
patent: 5833859 (1998-11-01), Heskett
patent: 5837134 (1998-11-01), Heskett
patent: 5882512 (1999-03-01), Denkewicz, Jr. et al.
patent: D411282 (1999-06-01), King
patent: 5951869 (1999-09-01), Heskett
patent: 5980759 (1999-11-01), Proulx et al.
patent: 5997812 (1999-12-01), Burnham et al.
patent: D422678 (2000-04-01), King
patent: 6093422 (2000-07-01), Denkewicz, Jr. et al.
patent: 6123841 (2000-09-01), Gotoh
patent: 6156211 (2000-12-01), Gonzalez-Martin et al.
patent: 6165358 (2000-12-01), Denkewicz, Jr. et al.
patent: 6190547 (2001-02-01), King et al.
patent: 6200487 (2001-03-01), Denkewicz, Jr. et al.
patent: 6217780 (2001-04-01), Denkewicz, Jr. et al.
patent: 6238631 (2001-05-01), Ogata et al.
patent: 6254894 (2001-07-01), Denkewicz, Jr. et al.
patent: 6312604 (2001-11-01), Denkewicz, Jr. et al.
patent: 6352111 (2002-03-01), Bode et al.
patent: 6550622 (2003-04-01), Koslow
patent: 5-15744 (1993-01-01), None
Master Spas, Inc.
Prince Fred G.
Synnestvedt & Lechner LLP
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