Lost foam casting apparatus

Details Lost foam casting apparatus Lost foam casting apparatus

1989-03-17

1990-11-20

Seidel, Richard K.

Metal founding

Means to shape a forming surface

Including means for compacting particulate fluent mold...

2221445, 164237, 164 34, 164376, B22C 512

Patent

active

049711350

ABSTRACT:
An apparatus comprising a batch hopper including a bottom wall having therein a plurality of openings, a plurality of walls dividing the batch hopper into a plurality of compartments each communicating with a respective one of the openings and each adapted to receive sand from a main hopper, and a sliding gate for simultaneously opening and closing the openings in the bottom wall of the batch hopper.

REFERENCES:
patent: 997554 (1911-07-01), Holmes
patent: 1119727 (1914-12-01), Rust
patent: 1127471 (1915-02-01), MacDonald
patent: 1155019 (1915-09-01), Tscherning
patent: 1709604 (1929-04-01), Boynton
patent: 2856106 (1958-10-01), Madsen
patent: 2859497 (1958-11-01), Winter
patent: 2931080 (1960-04-01), Hutchinson et al.
patent: 4593739 (1986-06-01), VanRens et al.
patent: 4685504 (1987-08-01), Bond

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