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(11)    Patent No :    AP 2196    (73) Applicant(s)       
(21)    Application No :    AP/P/2006/003687    WEIR SLURRY GROUP, INC, 2701 South Stoughton Road,       
            Madison, WI 53716,       
                   
(22)    Filing Date :    25.01.2005    United States of America       
(24)    Date of Grant &    10.01.2011           
                   
(45)    Publication :

(30)    Priority Data            (72) Inventors   
    (33) Country    (31) Number    (32) Date    WALKER Craig I., Australia   
    US    10/765,683    27.01.2004    (74) Representative   
(84)    Designated State           
                   
    BW  GH   T Z    ZW        GILL, GODLONTON & GERRANS   
                ZIMBABWE       
                   
(51)    International    Classification    F01D1/02 (2006.01)    F01D9/00 (2006.01)   
            F03B1/04 (2006.01)       

(54)    Title

Casing for a centrifugal pump

(57)    Abstract

A pump casing for a centrifugal pump of the type that is used to process abrasive slurries is disclosed having at least one side or side liner that has a radially extending portion oriented toward the cutwater of the pump casing to localize the abrasive wear caused by the abrasive slurries to the side of the pump casing. The side liner of the pump is configured with a perimeter edge that is non-circular. The pump casing may preferably be configured with an open cutwater configuration or other suitable configuration for localizing wear to the sides of the casing.
(56)    Documents Cited :    US 2537084 A    US 5228831 A

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