Eccentrically driven percussive tools for treating materials

Details Eccentrically driven percussive tools for treating materials Eccentrically driven percussive tools for treating materials

1996-01-17

1997-11-11

Bagnell, David J.

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

Rolling or rotatable bit

175 55, 299 851, 299 78, E21B 1008, E21C 2508

Patent

active

056856156

ABSTRACT:
An apparatus for treating rock, minerals or similar materials includes at least two tool-bearing sleeves supported by bearings. The tool-bearing sleeves are arranged in eccentric relationship to a common drive shaft. The tool-bearing sleeves are counterbalanced with reference to respective counterweights.

REFERENCES:
patent: 4736987 (1988-04-01), Lenzen et al.
patent: 5103705 (1992-04-01), Bechem
patent: 5190353 (1993-03-01), Bechem

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