(19)
(11) EP 0 076 083 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
11.07.1984 Bulletin 1984/28

(43) Date of publication A2:
06.04.1983 Bulletin 1983/14

(21) Application number: 82304966

(22) Date of filing: 21.09.1982
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE

(30) Priority: 21.09.1981 ZA 816541

(71) Applicant: AIR WATER PUMPS (Proprietary) Limited
 ()

(72) Inventor:
  • Mostert, Jacob Johan
     ()

   


(54) Airlift pump and method of operation


(57) An airlift borehole pump 10 has a pressure vessel 14 to balance a column of water in the rising main 12 in the borehole 18. The rising main 12 and pressure vessel 14 maybe of flexible tubing capable of being transported in roll form. The pump is used primarily for providing drinking water for domestic purposes and for livestock or game, and can be quickly installed in an emergency.






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