DRILLING TOOL Russian patent published in 2002 - IPC

Abstract RU 2193644 C2

FIELD: mining and construction engineering. SUBSTANCE: drilling tool has drilling head provided with drill bits, several shock-absorbing members at least one part of which is made of elastomer material. Shock-absorbing members are installed in places other than those in drill bits. Each shock-absorbing member is formed by block including a part deepened inside groove on tool surface, and deformable part protruding from groove and absorbing tool vibration. EFFECT: higher operating reliability of drilling tool due to increased efficiency of tool vibration cushioning. 19 cl, 14 dwg

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RU 2 193 644 C2

Authors

Besson Alan

Del'Vish Rober

Lekur P'Er

Dates

2002-11-27Published

1997-12-23Filed