Praxair Technology, Inc.

Steven Michael McCarty

Balazs Hunek

Yeu-Chuan Simon Ho

John M Girard

Soujanya N Jampala

Richard N Hasty

Gary Dee Lang

Theodore Hall Gasteyer

Yeu-Chaun Simon Ho

Particulate material is cooled by passing into the material a coolant stream of liquid nitrogen having a gaseous product around at least a portion of the liquid nitrogen, wherein the coolant stream is formed outside the particulate material in a nozzle body from which the coolant stream is passed into the particulate material.

Cooling particulate material with nitrogen

A device useful for delivering carbon dioxide snow comprises a supply conduit for providing a flow of pressurized carbon dioxide, a plurality of tubes disposed side by side, each tube having a constant cross-sectional configuration and area throughout its length, each tube having a first end the peripheral edges of which are sealed to the outside of the conduit wall and a second end which is open to the ambient atmosphere, and a plurality of apertures for carbon dioxide to flow through the conduit wall and expand to solids and vapor, there being at least one aperture communicating with the interior of each of said plurality of tubes.

Device and process for generating carbon dioxide snow

Growing community of inventors

Glendale Heights, IL, United States of America

Steven Michael McCarty