Air and water delivery system for a shell mold

Details Air and water delivery system for a shell mold Air and water delivery system for a shell mold

1991-04-01

1992-04-21

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

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

Temperature control

137605, 239438, 239443, 264302, 264DIG60, 425435, 425DIG246, B29C 4118, B29C 4146

Patent

active

051062852

ABSTRACT:
A delivery system for dispersing either hot air or water uniformly to the outer surface of a shell mold used for forming a thin molded shell, for the respective fusion and cooling phases thereof. The delivery system includes a plurality of distributors, each having a central water inlet surrounded by an axially adjustable outer shell, with the latter having a frusto-conically shaped upper end which cooperates with the upper edge of the central water inlet to selectively close off or vary the annular opening therebetween for controlling the flow of air at a predetermined temperature form the space intermediate the central water inlet and the surrounding outer shell.

REFERENCES:
patent: 3728429 (1973-04-01), Colby et al.
patent: 4621995 (1986-11-01), Wersosky
patent: 4623503 (1986-11-01), Anestis et al.

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