Imperforate bowl: centrifugal separators – With means for furnishing auxiliary fluid to material or... – Gas other than air
Reexamination Certificate
2006-12-05
2009-12-08
Cooley, Charles E (Department: 1797)
Imperforate bowl: centrifugal separators
With means for furnishing auxiliary fluid to material or...
Gas other than air
C494S027000, C494S036000, C494S037000, C494S050000, C494S056000, C494S065000, C210S376000
Reexamination Certificate
active
07628749
ABSTRACT:
In a system for combined centrifugation and microfiltration, retentate from a cross-flow microfilter is fed to an automatic piston discharge centrifuge for solids removal, thereby enhancing the efficiency of both processes. The centrifuge includes a cylindrical bowl having a conical lower end with an opening through which feed liquid is injected. Solids separate from the feed liquid and accumulate along the inner surface of the bowl as the bowl rotates at high speed. A microfiltration membrane can be added to improve solids retention in the bowl and provide a filtered centrate. During solids discharge, a piston is urged downward along a vertical axis. The downward movement of the piston forces accumulated solids from the bowl via the opening in the conical lower end thereof.
REFERENCES:
patent: 1909188 (1933-05-01), Roberts
patent: 2040351 (1936-05-01), Williams
patent: 2094058 (1937-09-01), Bryson
patent: 3306681 (1967-02-01), Barringer
patent: 3403848 (1968-10-01), Windsor et al.
patent: 3539096 (1970-11-01), Lewis et al.
patent: 3741465 (1973-06-01), Lincoln
patent: 3770191 (1973-11-01), Blum
patent: 3864256 (1975-02-01), Hultsch et al.
patent: 3879294 (1975-04-01), Ellis et al.
patent: 3972514 (1976-08-01), Voitsekhovsky et al.
patent: 4155503 (1979-05-01), Sears
patent: 4221323 (1980-09-01), Courtot
patent: 4416655 (1983-11-01), Bennett
patent: 4493768 (1985-01-01), Kubr et al.
patent: 4493769 (1985-01-01), Paschedag et al.
patent: 4513566 (1985-04-01), Rajsigl et al.
patent: 4687463 (1987-08-01), Simonnet
patent: 4692247 (1987-09-01), Orlans
patent: 4875334 (1989-10-01), Rajsigl et al.
patent: 4915844 (1990-04-01), Imamura et al.
patent: 5149432 (1992-09-01), Lavin
patent: 5250180 (1993-10-01), Chang
patent: 5328441 (1994-07-01), Carr
patent: 5356367 (1994-10-01), Carr
patent: 5364335 (1994-11-01), Franzen et al.
patent: 5425698 (1995-06-01), Carr
patent: 5454777 (1995-10-01), Ziems et al.
patent: 5656164 (1997-08-01), Vado et al.
patent: 5674174 (1997-10-01), Carr
patent: 5733238 (1998-03-01), Carr
patent: 5743840 (1998-04-01), Carr
patent: 5795489 (1998-08-01), Holm
patent: 5879279 (1999-03-01), Berger et al.
patent: 5916082 (1999-06-01), Opfer
patent: 6126587 (2000-10-01), Berger et al.
patent: 6149573 (2000-11-01), Berger et al.
patent: 6224532 (2001-05-01), Beattey
patent: 6248054 (2001-06-01), Berger et al.
patent: 6251056 (2001-06-01), Berger et al.
patent: 6461286 (2002-10-01), Beattey
patent: 6478724 (2002-11-01), Beattey
patent: 6632166 (2003-10-01), Carr
patent: 6776752 (2004-08-01), Carr
patent: 6932757 (2005-08-01), Beattey
patent: 7261683 (2007-08-01), Carr
patent: 2002/0016243 (2002-02-01), Carr
patent: 2002/0017483 (2002-02-01), Chesner et al.
patent: 2003/0017931 (2003-01-01), Beattey
patent: 2003/0127391 (2003-07-01), Craft, Sr. et al.
patent: 2003/0195105 (2003-10-01), Carr
patent: 2005/0003945 (2005-01-01), Beattey
patent: 2005/0009681 (2005-01-01), Carr
patent: 2005/0043164 (2005-02-01), Opfer
patent: 2005/0233882 (2005-10-01), Carr
patent: 2005/0233883 (2005-10-01), Carr
patent: 2007/0114161 (2007-05-01), Carr
patent: 604 906 (1978-09-01), None
patent: 35 33 306 (1987-03-01), None
patent: 1 028 163 (1999-02-01), None
patent: 63171656 (1988-07-01), None
patent: 7144150 (1995-06-01), None
patent: 8131894 (1996-05-01), None
patent: 8266936 (1996-10-01), None
patent: 9085189 (1997-03-01), None
patent: 2001-140704 (2000-05-01), None
patent: 2003-144973 (2005-05-01), None
patent: WO 00/38762 (2000-07-01), None
patent: WO 03/086641 (2003-10-01), None
patent: WO 2006/046141 (2006-05-01), None
Can Powerfuge Brochure, Carr Separations, Inc., undated, p. 1-4.
Alfa-Laval CHPX Centrifuge Brochure, Alfa Laval, Inc., undated, p. 1.
Shanghai Centrifuge Institute, SCI Tube Bowl Centrifuge, Shanghai, China, undated, p. 1-2.
Cooley Charles E
Wagner Development Inc.
Weingarten Schurgin, Gagnebin & Lebovici LLP
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