Concrete crusher

Details Concrete crusher Concrete crusher

1992-02-03

1994-04-12

Watts, Douglas D.

Solid material comminution or disintegration

Apparatus

Combined or convertible

30134, 241263, B02C 110

Patent

active

053018826

ABSTRACT:
The present invention provides a concrete crusher comprising an upper jaw and a lower jaw which are connected to each other through a pivot pin and adapted to be opened and closed by a hydraulic cylinder, the lower jaw having a plurality of longitudinal cutters extending perpendicular to the pivot pin and arranged in the form of a fork, the upper jaw having a large rough cutter extending perpendicular to the pivot pin, the lower jaw further having a plurality of cross cutter bars arranged in a grate-like pattern avoiding the position of descent of the large rough cutter, the upper jaw further having a surfacing plate member facing the lower jaw and having a plurality of cross cutter bars corresponding to the cross cutter bars of the lower jaw, with the large rough cutter interposed between rows of the cross cutter bars of the upper jaw.

REFERENCES:
patent: 4776524 (1988-10-01), Sakato

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