Motor driven tool

Details Motor driven tool Motor driven tool

E - Fixed Constructions

21

B

90/29, 255/49

E21B 4/16 (2006.01) E21B 4/00 (2006.01) E21B 4/10 (2006.01)

Patent

CA 1259604

24742-43 ABSTRACT A motor driven tool used to remove hard, stone- or rock- like 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 sup- ported 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

511192

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