DEVICE FOR LOOSENING OF HARD GROUNDS Russian patent published in 1994 - IPC

Abstract RU 2018584 C1

FIELD: loosening of hard grounds. SUBSTANCE: installed inside hollow body for vertical displacement in spring-loaded percussive weight for interaction with head and anvil. Arranged in body lower part is spring-loaded hook grip with rod. Free end of rod is passed through body wall and connected with hoisting rope. Lower part of percussive weight has stop for interaction with hook grip. EFFECT: higher efficiency. 1 dwg

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RU 2 018 584 C1

Authors

Zolotukhin I.V.

Katranov A.G.

Dates

1994-08-30—Published

1991-09-04—Filed