Hydraulic refractory press including product thickness or densit

Details Hydraulic refractory press including product thickness or densit Hydraulic refractory press including product thickness or densit

1982-10-26

1984-05-08

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

Control means responsive to product weight or dimension

425141, 425150, 425352, 425415, B30B 1516

Patent

active

044471980

ABSTRACT:
A hydraulic press is provided including a frame having a pair of spaced-apart vertical side members and a crown, and a mold box rigidly supported between the vertical side members and including a vertical mold cavity. A lower plunger assembly is positioned below the mold box and includes at least one plunger adapted to extend upwardly into the mold cavity, and an ejection cylinder assembly is provided for causing selective vertical movement of the lower plunger assembly. An upper plunger assembly is positioned above the mold box and includes an upper plunger adapted to extend downwardly into the mold cavity, and a hydraulic ram is provided for supporting the upper plunger assembly for vertical movement with respect to said mold box and with respect to said lower plunger assembly. The hydraulic ram includes a cylinder fixed to the lower plunger assembly and a ram housed in the cylinder and adapted to selectively drive the upper plunger assembly downwardly. Rack and pinion position encoders are provided for sensing the relative movement of the lower plunger assembly and the upper plunger assembly and for generating electrical signals indicating such relative movement so as to provide accurate control of the size of the compressed refractory product. Pressure transducers are also provided and function to permit control of the compression pressure and the density of the resultant products.

REFERENCES:
patent: 1246722 (1917-11-01), Curd
patent: 2508301 (1950-05-01), Stacy
patent: 2825092 (1958-03-01), Hatch et al.
patent: 2946091 (1960-07-01), Fraula et al.
patent: 3078540 (1963-02-01), Bush
patent: 3132379 (1964-05-01), Crane
patent: 3191232 (1965-06-01), Haller
patent: 3447205 (1969-06-01), Dorsey
patent: 3487507 (1970-01-01), Turk
patent: 3758245 (1973-09-01), Hermes
patent: 3816052 (1974-06-01), Shoppee et al.
patent: 3868201 (1975-02-01), Jacobson et al.
patent: 3893792 (1975-07-01), Lacsko
patent: 4000231 (1976-12-01), Peterson
patent: 4195048 (1980-03-01), Jung
patent: 4260346 (1981-04-01), Anderson et al.
patent: 4265610 (1981-05-01), Dorsey
patent: 4269580 (1981-05-01), Wright
patent: 4270890 (1981-06-01), Ottl
patent: 4289472 (1981-09-01), Dorsey
patent: 4373889 (1983-02-01), Brown
patent: 4392800 (1983-07-01), Apuzzo

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