Apparatus and method for removing core mark material from molded

Details Apparatus and method for removing core mark material from molded Apparatus and method for removing core mark material from molded

1979-07-10

1980-12-30

Arnold, Donald J.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Perforation by differential fluid pressure; or smoothing,...

264161, 264162, 264536, 425146, 425162, 425165, B29C 1708, B29C 1712

Patent

active

042422990

ABSTRACT:
An apparatus and method utilizing pressurized air discharged through positionable outlets is adapted to blowing core mark material from freshly molded, uncured concrete blocks of either the rib or flute type designed to be split or conventional unsplit blocks so as to prevent the core mark material associated with such blocks from being trapped and hardening in recesses or on surfaces of the blocks.

REFERENCES:
patent: 3392217 (1968-07-01), Zitzloff
patent: 3821347 (1974-06-01), Katoh
patent: 4108933 (1978-08-01), Goransson
patent: 4109635 (1978-08-01), Rossborough

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