Compact counter balanced pump jack

Details Compact counter balanced pump jack Compact counter balanced pump jack

F - Mech Eng,Light,Heat,Weapons

04

B

103/40, 74/55

F04B 47/00 (2006.01) F04B 47/02 (2006.01) F16H 19/06 (2006.01)

Patent

CA 2030127

Abstract of the Disclosure A compact well jack is particularly suitable for reciprocating a long stroke rod pump and in situations wherein horizontal area around the well head is limited. The pump jack has a frame with elongated guides, a lifting bar slidably disposed between the guides, a horizontal slot in the lifting bar, pulleys carrying an endless belt having a stud affixed opposite to a counter weight and extending into the slot such that rotation of the pulleys vertically reciprocates the lifting bar and sucker rod string while the stud moves horizontally within the slot.

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