Procedyne Corporation

Herbert K Staffin

Robert Staffin

Karin Staffin Bickford

Robert Bernard Roaper, Ii

A process for removing sand cores from metal castings in a continuous or semi-continuous procedure utilizes a fluid bed furnace. The thermally decomposed sand cores are carried away with the fluidized solids of the furnace bed.

Apparatus and method for sand core debonding and heat treating metal castings

This invention relates to non-abrasive, lubricative, particulate solids, e.g. graphites, lime, calcium oxides, zinc oxides and compounds of higher saturated fatty acids, particularly, stearate salts, and their methods of use as fluidized bed media for preventing clinging and related carryover problems. Preferably, fluidized bed media, selected in accordance with this invention, have a beneficial effect on subsequent process operations.

Particulate medium for fluidized bed operations

Disclosed is a method and apparatus for calcining or heat treating finely divided solids to effect a change in physical and/or chemical properties and, in so doing and prior to exhaust, filtering out particles entrained in the exhaust.

Growing community of inventors

Colonia, NJ, United States of America

Herbert K Staffin