Hollow core concrete extruder

Details Hollow core concrete extruder Hollow core concrete extruder

1989-07-27

1990-07-24

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

Building forms or construction engineering type mold with...

Including mold charging means

249105, 425120, 425253, 425256, 425DIG118, B28B 114

Patent

active

049432192

ABSTRACT:
An improved slipform for use in a machine for casting hollow core concrete planks includes at least one angled baffle plate in the core material receiving ports so as to deflect the core material from directly impacting the lower concrete. This lessens the possibility of tears and holes in the lower layer caused by the core material.

REFERENCES:
patent: 2833019 (1958-05-01), Dench et al.
patent: 2932875 (1960-04-01), Butcher
patent: 3217375 (1965-11-01), Kinnard
patent: 3830606 (1974-08-01), Breitfuss
patent: 4045528 (1977-08-01), Urmanov
patent: 4369153 (1983-01-01), Nash

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