Sucker rod wiper

Details Sucker rod wiper Sucker rod wiper

1991-12-26

1993-06-08

Novosad, Stephen J.

Wells

Above ground apparatus

With seal for reciprocating member

152204, E21B 3308

Patent

active

052170691

ABSTRACT:
A wiper device for oil well sucker rods is provided as an integral resilient body fabricated of an oil-resistant elastomeric composition. The resilient body is bounded in part by upper, lower and sidewall surfaces. A flat annular base portion extends inwardly from the sidewall surface. An interior portion of frustro-conical shape extends upwardly from the base portion and terminates in an orifice adapted to embrace the sucker rod. A reinforcing band is embedded within the base portion to provide structural stability.

REFERENCES:
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patent: 2444653 (1948-07-01), Kennedy et al.
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patent: 3061862 (1962-11-01), Minor
patent: 3475781 (1969-11-01), Grant
patent: 3902215 (1975-09-01), Waldrop et al.
patent: 3921991 (1975-11-01), Beck
patent: 4050514 (1977-09-01), Prenn
patent: 4279300 (1981-07-01), Wirsch
patent: 4494607 (1985-01-01), Ford et al.

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