Auxiliary counter balance for well pump

Details Auxiliary counter balance for well pump Auxiliary counter balance for well pump

1980-08-28

1982-03-30

Staab, Lawrence J.

Machine element or mechanism

Mechanical movements

Rotary to or from reciprocating or oscillating

74591, F16H 2132, G05G 100

Patent

active

043218377

ABSTRACT:
A well pump having a walking beam operated by a pitman and crank, the latter of which has a main counter weight connected to its end for counter balancing the weight of the rod string and one-half of the weight of the fluid pumped. An auxiliary counter weight is coupled to the crank between its driving shaft and the main counter weight and is rotated relative to the crank to aid in counter balancing the remaining portion of the fluid pumped.

REFERENCES:
patent: 1712927 (1929-05-01), Martois
patent: 1948288 (1934-02-01), Corey
patent: 3222940 (1965-12-01), Chastain
patent: 3364755 (1968-01-01), Miller
patent: 3805627 (1974-04-01), Burton et al.
patent: 3830212 (1974-08-01), Seino et al.
patent: 4095579 (1978-06-01), Iwasa et al.

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