PNEUMATICALLY-OR HYDRAULICALLY-DRIVEN PUMP Russian patent published in 1996 - IPC

Abstract RU 2067217 C1

FIELD: transportation of water suspensions of explosives. SUBSTANCE: two duplex actuating chambers located oppositely are isolated from working chambers by diaphragm; they are also separated from each other by means of common partition with axial hole for rod and passages brought in communication with pressure source. Mounted on rod connecting the actuating chambers are two combination pistons which consists of rigid part with seals on which flexible end-piece is secured. EFFECT: enhanced reliability. 1 dwg

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RU 2 067 217 C1

Authors

Antonov V.P.

Lalajants Ju.M.

Chevikov S.A.

Dates

1996-09-27—Published

1987-06-11—Filed