发明名称 MOTOR DRIVEN TOOL
摘要 <p>24742-43 A motor driven tool used to remove hard, stone- or rocklike material, such as concrete, rock, quartzite or quartz rock, comprises a drive shaft that is driven by a motor and a tool which rotates about the shaft, and has radially projecting cutters or the like. An eccentric is fixed on the shaft and the tool is supported on the eccentric so as to be able to rotate. Preferably, two eccentrics with throws oriented in opposing directions and of equal weight are arranged on the drive shaft, a tool being mounted on each eccentric so as to be able to rotate. A 5991/86 Li</p>
申请公布号 CA1259604(A) 申请公布日期 1989.09.19
申请号 CA19860511192 申请日期 1986.06.10
申请人 BECHEM, HANNELORE, NEE SAILLER 发明人 LENZEN, HANS D.;BECHEM, ULRICH;BECHEM, KLAUS;BECHEM, PHILIP
分类号 E21B10/08;E21B4/00;E21B4/10;E21B4/16;E21B10/12;(IPC1-7):E21C3/28 主分类号 E21B10/08
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