F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
F04B 47/02 (2006.01)
Patent
CA 2245644
A slant hole pumping unit includes a base mounting a support structure. A drive system is mounted on the support structure and is connected to a bridle strap assembly for reciprocating same. A constraint link assembly includes a lower end pivotally connected to the base and an upper end engaging the bridle strap assembly.for constraining the movement thereof to an arc defined by the pivotal movement of the bridle strap assembly.
Fetherstonhaugh & Co.
Pauls Dennis A.
Weatherford/lamb Inc.
LandOfFree
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