Heavy-duty demolition apparatus with replaceable crushing and sh

Details Heavy-duty demolition apparatus with replaceable crushing and sh Heavy-duty demolition apparatus with replaceable crushing and sh

1999-03-12

2000-09-19

Hail, III, Joseph J.

Solid material comminution or disintegration

Apparatus

Combined or convertible

30134, 30228, 241266, B23D 1706

Patent

active

061199702

ABSTRACT:
A heavy-duty shearing and crushing demolition apparatus for attachment to a boom structure and hydraulic system of an excavator. The apparatus includes a lower jaw with a primary blade, an upper jaw with primary and secondary blades oblique with respect to each other, and a shearing and crushing tip on the upper jaw secondary blade with a shearing point, a crushing point, and a support and shearing tip blade portion between the shearing point and the crushing points. This structure exposes the crushing point for crushing when the upper jaw is open from the lower jaw with the shearing tip out of the way and also exposes the shearing tip for shearing when the upper jaw is closing into the lower jaw. This permits shearing beginning at the shearing tip and shearing rearwardly. The support and shearing tip blade portion supports the workpiece while shearing it, producing a substantially flat non-contoured or twisted workpiece.

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