发明名称 Drilling tool with shock absorbers
摘要 A drilling tool including a drilling head equipped with cutting edges and fitted with several shock-absorption elements, of which at least one part is made of an elastomer material. Each shock-absorption element having a block incorporating one portion inserted inside a receptor housing formed on the tool surface, and a portion which projects outward beyond the receptor housing.
申请公布号 US6102142(A) 申请公布日期 2000.08.15
申请号 US19970996196 申请日期 1997.12.22
申请人 TOTAL,;SECURITY DIAMINT BOART STRATABIT 发明人 BESSON, ALAIN;DELWICHE, ROBERT;LECOUR, PIERRE
分类号 E21B10/16;E21B10/00;E21B10/42;(IPC1-7):E21B10/00 主分类号 E21B10/16
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