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Back to the List of the Granted Patents                                                Click here to download AP2544 PDF

(11)Patent No :AP 2544(73) Applicant(s)

(21)Application No :AP/P/2009/004845AEL MINING SERVICES LIMITED, AECI Place, The

Woodlands, Woodlands Drive, Woodmead, 2196 Sandton,

 

(22)Filing Date :20.11.2007South Africa

(24)Date of Grant &20.12.2012

 

(45)Publication : 

 

(30)  Priority Data(72) Inventors

(33) Country(31) Number(32) Date

ZA2006/0969221.11.2006

 

NEIMANN Frank, South Africa

et al

(74) Representative

(84)Designated State

 

BW  GM  GHKE   MW  TZUG   ZM  ZWHONEY & BLANCKENBERG

 

(51)InternationalClassificationF04B 9/125 (2006.01)F04B 9/113 (2006.01)

F04B 9/105 (2006.01)

(54)Title 

 

Pumping arrangement 

 

(57)Abstract 

 

A pump arrangement which has a piston which is reciprocably movable in response to a directional control valve, a pilot valve which, in response to the piston, operates the directional control valve and an index valve operable to inhibit or allow the pilot valve to function 

 

(56)Documents Cited :US-4348161GB-1374538US-5173035

 

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