Solid material comminution or disintegration – Apparatus – Cooperating comminuting surfaces
Patent
1992-11-13
1994-03-08
Phan, Hien H.
Solid material comminution or disintegration
Apparatus
Cooperating comminuting surfaces
2411017, 299 85, 299 88, 414740, B02C 104
Patent
active
052920798
ABSTRACT:
A lower jaw 4 is tiltably connected to the front end of a swing arm 3, an upper jaw 6 openably and closably connected to the lower jaw 4, a hydraulic cylinder 8 interposed between the upper and lower jaws to open and close the jaws, and a protective cover 11 connected to the lower jaw 4 by a link 12 and to the upper jaw 6 by a pin and adapted to follow the opening and closing movement of the upper jaw 6 by a pin while covering the piston rod 10 of the hydraulic cylinder 8. A plurality of straight lower cutting blades are formed on the upper surface of the front end of the lower jaw 4 and a plurality of pointed upper cutting blades 7 are formed on the lower surface of the front end of the upper jaw 6. These upper and lower cutting blades are disposed to mesh with each other in zigzags as viewed from the side. When the upper and lower jaws are closed, concrete is finely broken in the clearances between the upper and lower cutting blades.
REFERENCES:
patent: 4776524 (1988-10-01), Sakato
patent: 4951886 (1990-08-01), Berto
patent: 4961543 (1990-10-01), Sakato et al.
patent: 5004168 (1991-04-01), Purser
patent: 5004569 (1991-09-01), LaBounty et al.
patent: 5065514 (1991-11-01), Gross
patent: 5183216 (1993-02-01), Wack
Dexter Clark F.
Ohyodo Diesel Co., Ltd.
Phan Hien H.
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