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(11)    Patent No :    AP 2749    (73) Applicant(s)       
(21)    Application No :    AP/P/2009/004914    AEL MINING SERVICES LIMITED, AECI Place, The       
            Woodlands, Woodlands Drive, Woodmead, 2196 Sandton,       
                   
(22)    Filing Date :    27.11.2007    South Africa       
(24)    Date of Grant &    06.09.2013           
                   
(45)    Publication :

(30)  Priority Data    (72) Inventors

    (33) Country    (31) Number    (32) Date    BÜHRMANN Rudolph Teodor, South Africa   
    ZA    2007/01956    02.02.2007    BÜHRMANN Rudolph, South Africa   
                   
                NEIMANN Frank, South Africa   
                et al       
                (74) Representative   
(84)    Designated State           
                   
    BW  GM  GH    KE   MW  TZ    UG   ZM  ZW    HONEY & BLANCKENBERG   
                   
(51)    International    Classification    F04B 49/14 (2006.01)    F04B 13/00 (2006.01)   
(54)    Title

Multi index with stroke selector pump

(57)    Abstract
A system for controlling a piston pump to deliver a predetermined member of pumping strokes wherein, for each stroke, an index component is moved by a defined extent which is monitored by a sensor and, once the index component is at a control position the sensor stops operation of the piston.

(56)    Documents Cited :    US-4141467 A    US -5547345 A

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