BOPI 11 BR/2023 REPERTOIRE NUMERIQUE 11 (11) 21231 (51) F04B 47/02 (2006.01) (21) 1201200451 - PCT/CA2011/050259 (22) 29/04/2011 (30) US n° 61/330,095 du 30/04/2010 (54) A Continuous Rod Pump Drive System. (72) HULT, Vern, A. (CA) et WIDNEY, Mark (CA) (73) Oil Lift Technology Inc., #37, 19 Aero Drive N.E, Calgary, T2E 8Z9, ALBERTA (CA) (74) SPOOR & FISHER Inc. NGWAFOR & PARTNERS SARL, The House of Gideon, Golf/Bastos Quarters, Opposite The American Embassy, Entrance-Saint John Paul II Boulevard, B.P. 8211, YAOUNDE (CM). (57) In a downhole rod-driven pump, continuous rod is used to drive the pump. The continuous rod is connected directly to the drive eliminating the need for a polish rod and an uphole coupling. A coupling is used to connect the continuous rod to the pump reducing restrictions in the production annulus and wear on the production tubing. Further, clean out tubing can be inserted into the production tubing beside the continuous rod and can extend therein to the pump without restriction. When the coupling is a threaded coupling, the continuous rod can be rotated in an appropriate direction to release the continuous rod from the pump when the pump is stuck. When the coupling is a shear coupling, the shear coupling can be sheared for releasing the pump from the continuous rod. When the pump is a progressing cavity pump and the coupling is a shear coupling, the continuous rod can be reverse rotated for changing the direction of pumping and if the rotor thereafter remains stuck, the shear coupling can be sheared. Consulter le mémoire ________________________________________ (11) 21232 (51) A61K 36/00 (2018.01); A61K 47/06 (2018.01); A61K 47/10 (2018.01) ; A61P 33/06 (2018.01) (21) 1201900398 (22) 11/10/2019 (54) Phytomédicament antipaludique développé à partir des écorces du tronc de Alstonia boonei et procédé de fabrication. (72) TCHINDA TIABOU Alembert (CM); AGBOR Gabriel (CM); NNANGA NGA (CM); DONFAGSITELI TCHINDA Nehemie (CM); TARKANG Protus (CM); ZOFOU Denis (CM); TCHOKOUAHA YAMTHE LAUVE (CM); FREDERICH Michel (BE); KOPA KOWA Theodora (CM); TCHAMGOUE DEUTOU Armelle (CM); TSABANG NOLE (CM); DONGMO Bernard (CM); KINGA Joseph (CM); MOKALE KOGNOU Aristide Laurel (CM); IKOME NALOVA Hermia (CM); TOM AGBOR EGBE (CM) et ESSAME OYONO Jean-Louis (CM) (73) Institut de Recherches Médicales et d'Eudes des Plantes Médicinales (IMPM), B.P. 13033, YAOUNDE (CM)
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