SUCKED-ROD PUMP DRAIN DEVICE Russian patent published in 2001 - IPC

Abstract RU 2169291 C1

FIELD: oil industry; oil-well operation. SUBSTANCE: proposed device has housing with through channel and drain arrangement. The latter is made in form of piston fitted in bore which couples through channel with drain hole. Bore is made in radial section of housing. Through hole with fitted-in plug is made in housing diametrically opposite to bore. Plug is connected with piston by breakable member. EFFECT: facilitated repair of pump. 1 dwg

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RU 2 169 291 C1

Authors

Zakharov B.S.

Bogomol'Nyj E.I.

Drachuk V.R.

Sharikov G.N.

Dates

2001-06-20—Published

2000-03-29—Filed