PNEUMATIC PUMP ACTIVATOR FOR OIL WELLS

摘要

A wellhead mounted pneumatic actuating device for oil well pumps designed for operation by compressed air or gas. The preferred embodiment utilized a single action cylinder with the down stroke actuated by the weight of the sucker rods. The elongated pneumatic cylinder was powered by filtered lubricated compressed air. The pressure or solenoid control floating piston bleeder valve supplies high-pressure air or gas from an external source for lifting the piston and attached sucker rods and the release of pressure from the cylinder accomplishes the down stroke.