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US6161422A
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Sand testing method and apparatus
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AU7599796A
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Sand testing method and apparatus
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US5330265A
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Apparatus and apparatus for mixing and cooling molding sand
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Automatic bond determinator
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US4699011A
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Automatic compactability tester
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CA1045625A
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Apparatus for mixing molding sand
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US3961230A
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Current relay actuated by multistage amplifier's total current drains
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US3964732A
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Apparatus for mixing molding sand
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US3908133A
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High-low level control circuit
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US3677523A
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Rebound pug mill
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US3707222A
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Hopper with slide plates
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CA935999A
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Apparatus for adding finely divided solid material to a mixture
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Moisture controller
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|
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Apparatus for adding finely divided solid material to a mixture
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Sand hopper
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Constant volume feeder for flowable granular material
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US3250287A
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Moisture controller for continuous mixing
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US3249970A
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Apparatus and method for controlled addition of one ingredient to a mixture of foundry sand ingredients
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US3083423A
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Automatic supplying, mixing, moisture control and delivery of granular material
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US2931521A
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Level control using alternating current through material of variable resistance
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