Coupling device for a drive assembly

Details Coupling device for a drive assembly Coupling device for a drive assembly

E - Fixed Constructions

21

B

E21B 17/02 (2006.01) E21B 4/00 (2006.01) E21B 33/03 (2006.01) E21B 43/12 (2006.01) F16D 1/08 (2006.01) F16D 3/74 (2006.01) F04C 15/00 (2006.01) E21B 43/013 (2006.01) E21B 43/12 (2006.01)

Patent

CA 2240058

A device for connection to a wellhead for coupling a drive assembly for a downhole pump with an apparatus having a rotatable member for driving the apparatus. A rotatable first shaft, having a first end and a longitudinal axis, is associated with the drive assembly such that the first shaft is rotated thereby. A rotatable connector, having driven and drive ends, connects the first shaft with the rotatable member such that rotation of the first shaft rotates the connector. The driven end connects with the first end of the first shaft. The drive end connects with the rotatable member. A rotatable coupler, having driven and drive ends and a longitudinal axis, connects the first shaft with the connector. The driven end of the coupler connects with the first end of the first shaft. The drive end of the coupler connects with the driven end of the connector. The longitudinal axis of the first shaft is substantially coaxial with the longitudinal axis of the coupler such that the driven end of the connector rotates substantially coaxially with the first shaft.

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