Feeding unit for a casting

Details Feeding unit for a casting Feeding unit for a casting

1976-12-30

1978-12-26

Spicer, Jr., Robert L.

Metal founding

Means to shape metallic material

United particle type shaping surface

164 53, 249106, 249197, B22C 908

Patent

active

041311523

ABSTRACT:
A feeding unit comprising a breaker core and a riser sleeve. In a first embodiment the breaker core has a thickness of 10% of the diameter of the riser sleeve and the opening in the breaker core is from 20% to 35% of the riser sleeve diameter.
In another embodiment of the invention the breaker core opening is tapered inwardly and downwardly in a generally v-cross sectional shape and one embodiment of the invention will have a symmetrical v-cross sectional area.

REFERENCES:
patent: 960372 (1910-06-01), Monnot
patent: 961854 (1910-06-01), Gathmann
patent: 2362097 (1944-11-01), Rowe
patent: 2366289 (1945-01-01), Rowe
patent: 2867871 (1959-01-01), Shephard, Jr.
patent: 3288424 (1966-11-01), Dean
patent: 3672433 (1972-06-01), Daussan

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