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Back to the List of the Granted Patents                                                Click here to download AP2543 PDF

(11)Patent No :AP 2543(73) Applicant(s)

(21)Application No :AP/P/2009/004844AEL 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

ZA2006/0969121.11.2006

 

NEIMANN Frank, South Africa

et al

(74) Representative

(84)Designated State

 

BW  GM  GHKE   MW  TZUG   ZM  ZWHONEY & BLANCKENBERG

 

(51)InternationalClassificationF16K 15/02 (2006.01)F04B 53/10 (2006.01)

 

(54)Title 

Check valve arrangement 

(57)Abstract 

A valve arrangement which includes a housing with an internal volume (20), an inlet to and an outlet from the volume, two valve seats (22, 24) which are 

 

serially located inside the volume between the inlet and the outlet, two valve members (36, 38) which are respectively sealingly engagable with the valve seats (22, 24), and guide formations (26,28) which permit each valve member to move, along a respective path, away from its respective valve 

 

(56)Documents Cited :US-2006076062 A1DE-20013763 U1GB-814287 A

 

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