PUMP Russian patent published in 1997 - IPC

Abstract RU 2074984 C1

FIELD: mechanical engineering; devices for recovery of liquids from deep wells in oil producing industry; supply of drinking water for consumers. SUBSTANCE: working chamber is formed by central electrode with adapter branch pipe arranged in its upper portion and shut-off valve in lower portion. Insulators with phase electrodes are mounted on outer surface. EFFECT: enhanced reliability. 2 dwg

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RU 2 074 984 C1

Authors

Bolotov Robert Aleksandrovich

Cherepanova Ljudmila Ivanovna

Dates

1997-03-10Published

1994-01-31Filed