Casting machine and improved control circuit for operation

Details Casting machine and improved control circuit for operation Casting machine and improved control circuit for operation

1975-12-29

1976-11-02

Shore, Ronald J.

Metal founding

With control means responsive to independent timing means

164256, 164DIG4, 164284, B22D 1732

Patent

active

039890880

ABSTRACT:
A casting machine including a control circuit which automatically controls ts operation. The casting machine includes a casting chamber which supports an alloy filled open-ended container whose open end faces the sprue hole of an investment casting ring. The control circuit couples a vacuum to the casting chamber while maintaining the casting chamber in its initial upright position. After a first timing interval, the chamber is inverted and the vacuum is decoupled from the casting chamber, and compressed air is applied to the casting chamber. After a second subsequent time interval the casting chamber is automatically returned to its initial upright position, the action of which causes the casting chamber to be automatically vented to the atmosphere.

REFERENCES:
patent: 1703739 (1929-02-01), Kelpsch
patent: 3690367 (1972-09-01), Daniels
patent: 3705615 (1972-12-01), Watts

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