Solid material comminution or disintegration – Apparatus – Combined or convertible
Patent
1989-11-13
1991-04-02
Rosenbaum, Mark
Solid material comminution or disintegration
Apparatus
Combined or convertible
241264, B02C 110
Patent
active
050041681
ABSTRACT:
An apparatus for breaking relatively brittle material such as stone which includes a first jaw having a material engaging surface and a free end and a second jaw having a relatively angled material supporting surface and a free end. The first and second jaws are connected in opposing relation to each other adjacent an end opposite the respective free ends for pivotal movement relative to each other between a relatively open material receiving position wherein the respective free ends of the first and second jaws are each widely spaced-apart to define a material entry space between the jaws and to receive a quantity of material to be broken and a relatively closed material breaking position wherein the free ends of the first and second jaws are closely adjacent to or abutting each other at an angle to force the material into the space between the jaws, and the engaging and supporting surfaces of the first and second jaws oppose each other in spaced-apart relation to define between them a relatively large dimension material holding space approximating the thickness of the first jaw to prevent reduction of the breaking action by entrapment of material particles between the first and second jaws. A hydraulic piston and cylinder assembly is used to move the first and second jaws. The rock breaking apparatus is mounted on a supporting structure such as a back hoe.
REFERENCES:
patent: 4512524 (1985-04-01), Shigemizu
patent: 4543719 (1985-10-01), Pardoe
patent: 4776524 (1988-10-01), Sakato
patent: 4890798 (1990-01-01), Tagawa et al.
patent: 4932597 (1990-06-01), Bieri
patent: 4934616 (1990-06-01), Zepf
patent: 4951886 (1990-08-01), Berto
Adams, III W. Thad
Rosenbaum Mark
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