Pump jack

Details Pump jack Pump jack

1976-01-14

1977-10-04

Scott, Samuel

Machine element or mechanism

Mechanical movements

Rotary to or from reciprocating or oscillating

F16H 2132

Patent

active

040517365

ABSTRACT:
A improved pump jack for reciprocating an oil well pump. The improved jack having a unique geometric design wherein the pump includes horizontal push rods for pushing a polish rod load around the radius of a sector head thereby greatly reducing the load on a sampson post and producing a greater mechanical advantage in the raising and lowering of the pump.

REFERENCES:
patent: 2170313 (1939-08-01), Whittlesey
patent: 2997887 (1961-08-01), Lott
patent: 3405605 (1968-10-01), Ross

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