PNEUMATIC REVERSIBLE PERCUSSION DEVICE FOR SINKING A BOREHOLES IN SOIL Russian patent published in 1996 - IPC

Abstract RU 2054505 C1

FIELD: sinking boreholes. SUBSTANCE: pneumatic reversible percussion device for sinking boreholes has hollow case, striker with an aperture and a cavity, stepped pipe branch, rotary stepped sleeve with an aperture, accessory for stopping sleeve rotation, elastic member and a nut with air inlet hose. The accessory for stopping sleeve rotation is placed on back end surface of the pipe branch. EFFECT: high productivity. 18 cl, 18 dwg

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RU 2 054 505 C1

Authors

Tkach Khaim Berkovich[Ru]

Kostylev Aleksandr Dmitrievich[Ru]

Smoljanitskij Boris Nikolaevich[Ru]

Chervov Vladimir Vasil'Evich[Ru]

Trubitsin Valerij Vasil'Evich[Ru]

Verganovskij Vasilij Grigor'Evich[Ua]

Koryshev Sergej Alekseevich[Ua]

Dates

1996-02-20Published

1992-12-21Filed