Imperforate bowl: centrifugal separators – Rotatable bowl – Including bearing means adapted to enable bowl to establish...
Reexamination Certificate
2006-01-17
2006-01-17
Cooley, Charles E. (Department: 1723)
Imperforate bowl: centrifugal separators
Rotatable bowl
Including bearing means adapted to enable bowl to establish...
C494S050000, C494S055000, C494S062000, C494S083000, C210S376000
Reexamination Certificate
active
06986734
ABSTRACT:
A centrifugal separator provides for the discharge of solids by either an axial-motion scraper or a piston/extrusion assembly. The axial-motion scraper is used with hard-packed or friable solids, and includes an integral feed liquid accelerator and feed holes. The piston/extrusion assembly is used with pasty solids, and includes a piston extending into a separator bowl and having openings permitting fluid communication across the piston. After high-speed separation is complete, a centrate valve closes one end of the bowl, and the piston is moved axially in the bowl by an actuator. Accumulated solids are scraped from the sides of the bowl and extruded out of the piston openings for discharge from the bowl. A bowl suspension employs a spherical mounting structure and a short, stiff spindle. A spherical portion of a bearing housing is mounted in a spherical mounting region at one end of the separator, with a cylindrical portion of the bearing housing extending along the rotational axis. A bearing and the spindle of the separator bowl are mounted within the cylindrical portion of the bearing housing. The suspension is retained by a stiff resilient ring and retaining member secured to the separator in compressive contact with the spherical portion of the bearing housing.
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: 3972514 (1976-08-01), Voitsekhovsky et al.
patent: 4155503 (1979-05-01), Sears
patent: 4416655 (1983-11-01), Bennett
patent: 4493768 (1985-01-01), Paschedag 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: 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: 5674174 (1997-10-01), Carr
patent: 5733238 (1998-03-01), Carr
patent: 5743840 (1998-04-01), Carr
patent: 5879279 (1999-03-01), Berger et al.
patent: 6126587 (2000-10-01), Berger et al.
patent: 6149573 (2000-11-01), Berger et al.
patent: 6224532 (2001-05-01), Beattey
patent: 6461286 (2002-10-01), Beattey
patent: 6478724 (2002-11-01), Beattey
patent: 2002/0016243 (2002-02-01), Carr
patent: 604 906 (1978-09-01), None
Carr 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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