Centrifugal separator
Patent 4265740 Issued on May 5, 1981. Estimated Expiration Date: 
December 17, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 17, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2638181 3040888 3529724 3543932 3848550 Hydrocyclone Patent #: 4094794 InventorApplicationNo. 06/104541 filed on 12/17/1979US Classes:209/159, With agitation209/17, Aqueous suspension and sifting209/210, With deflection209/731, Adjacent or subsequent to underflow discharge (e.g., dilution water, elutriation liquid, sedimentation chamber, sump, etc.)209/733, Including specific underflow discharge feature (e.g., apex construction, secondary vortex chamber, etc.)210/512.1TANGENTIAL FLOW OR CENTRIFUGAL FLUID ACTIONExaminersPrimary: Cuchlinski, William A. Jr.Attorney, Agent or FirmInternational ClassesB04C 5/00 (20060101)B04C 5/103 (20060101) B04C 9/00 (20060101) B04C 5/181 (20060101) D21D 5/22 (20060101) D21D 5/00 (20060101) D21D 5/24 (20060101) AbstractThe separator is particularly suitable for separating impurities from a pulp slurry. The separator includes a vertical vessel with an upper chamber and a lower chamber. The pulp slurry is fed into the upper chamber by means of a tangential pulp slurry inlet. A strong rotational movement is imparted to the pulp slurry in the upper chamber to cause the heavy impurities to move outwardly. Means are provided to change the strong rotational movement of the pulp slurry in the upper chamber to a primarily translational movement downwardly within the lower chamber so that the heavy impurities will move downwardly within the lower chamber. The heavy impurities are removed from the lower chamber. | |
