Simplified apparatus for forming building blocks

Details Simplified apparatus for forming building blocks Simplified apparatus for forming building blocks

1997-07-17

1999-07-06

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

Press forming apparatus having opposed press members

Male shaping member and female mold

425422, 425444, B29C 4300

Patent

active

059194979

ABSTRACT:
Apparatus for forming building blocks comprises an upright compression chamber with an upper end which serves both as an inlet and an outlet. A sliding gate closes the inlet/outlet. A soil/cement mixture is loaded into the upper end of the compression chamber, the gate is slid shut, and a ram then compresses the mixture against the gate. The gate is opened while the ram is still under pressure, smoothing the upper end of the block, and allowing it to be ejected through the common inlet/outlet.

REFERENCES:
patent: 73610 (1868-01-01), Jordan
patent: 113300 (1871-04-01), Hutchinson
patent: 1253405 (1918-01-01), McNeil
patent: 1371656 (1921-03-01), Whitney
patent: 1822939 (1931-09-01), Stout
patent: 2818603 (1958-01-01), Dunbar
patent: 2962788 (1960-12-01), Ramirez
patent: 3129464 (1964-04-01), Heider
patent: 3407433 (1968-10-01), Beebee et al.
patent: 4406606 (1983-09-01), Sangree
patent: 5277570 (1994-01-01), Siggers

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