Union Carbide Corporation

Lawrence S Graczyk

John Henri Royal

William E BeVier

William J Owens

Kenneth C Kather

Arthur W Francis

A method to deliver ultra high purity helium gas to a use point without need for further pressurization of helium gas after it is warmed or vaporized, wherein gaseous helium, having a purity which can be less than that of the product, is passed in heat exchange relation with cold helium to warm or vaporize and thus pressurize the helium while simultaneously being cleaned of impurities, and the resulting helium gas from both sources is delivered as ultra high purity helium gas to the use point.

Method to deliver ultra high purity helium gas to a use point

A valve system for particulate solid flow control which is especially advantageous where combined particulate solid and fluid flow control through a pressure level change is desired, such as might be used in conjunction with a lockhopper.

Valve system for particulate solid flow control

A heat exchanger constructed from a plurality of stacked modules, each module having closed channels for high pressure flow and fins extending vertically up and/or down from the channels which form open channels suitable for low pressure flow when the modules are stacked parallel along their length.

Growing community of inventors

Orchard Park, NY, United States of America

Lawrence S Graczyk