Universal long stroke pump system

Details Universal long stroke pump system Universal long stroke pump system

1977-03-07

1980-10-07

Noland, Kenneth W.

Implements or apparatus for applying pushing or pulling force

Apparatus for hauling or hoisting load, including driven...

Device includes rotatably driven, cable contacting drum

187 94, 254361, B66C 2372

Patent

active

042264049

ABSTRACT:
The long-stroke pumping apparatus has a frame, a drum, and a pair of sheaves mounted on the frame. A traction cable is carried by the drum. A cable connector is connected to one end of the traction cable which is guided over one sheave into an oil well. A counterweight assembly is connected to the other end of the traction cable which is guided over the other sheave into a counterweight well. A reversible power means, preferably a hydraulic motor, rotates the drum a number of turns in one angular direction and then in an opposite direction during one complete stroke of pumping operation. A load cable is also supported and guided by the sheaves, and the cable connector and the counterweight assembly are also suspended from the opposite ends of the load cable. The load cable is not drivingly connected to the drum.

REFERENCES:
patent: 3285081 (1966-11-01), Kuhns et al.
patent: 3524606 (1970-08-01), Coski
patent: 3690409 (1972-09-01), Brauss
patent: 4076218 (1978-02-01), Gault

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