SUBSURFACE CONCRETE PACKER Russian patent published in 1994 - IPC

Abstract RU 2023836 C1

FIELD: construction. SUBSTANCE: packer has vibration exciter secured to the top end of a working member. The working member is made of a hose whose one end is wound on reverse drum and the other one is turned inside out and connected with the case over periphery of edge. A rod is secured within inside part of the hose. EFFECT: enhanced efficiency. 1 dwg

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RU 2 023 836 C1

Authors

Shishkin Viktor Vasil'Evich

Dates

1994-11-30Published

1992-01-22Filed