PUMP ROD Russian patent published in 1998 - IPC

Abstract RU 2117132 C1

FIELD: machinery and equipment for oil production industry. SUBSTANCE: this is intended for mechanized extraction of oil from well. Pump rod has stem. Nipples are fastened on ends of stem by means of adhesive material, wedging article and centering bush. Aforesaid embodiment improves reliability and prolongs service life of pump rod. EFFECT: higher efficiency. 3 dwg

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RU 2 117 132 C1

Authors

Mirzojan Levon Stepanovich

Ivanov Mikhail Valentinovich

Shutov Lev Aleksandrovich

Dates

1998-08-10—Published

1996-09-18—Filed