Praxair Technology, Inc.

Yeu-Chuan Simon Ho

Theodore Hall Gasteyer

Alan T Cheng

Balazs Hunek

Ying Zhou

John M Girard

Soujanya N Jampala

Steven Michael McCarty

Richard N Hasty

Gary Dee Lang

Robert Rex Sever

Nigel Grinter

Theodore H Gasteyer

The efficiency of a device for cooling or heating objects on a belt that moves through a path of a helix, in which gaseous cooling or heating medium is circulated within the device, is improved by positioning fans that circulate the cooling or heating medium so that the fans are distanced from the top of the helix.

Helical device for cooling or heating

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

Disclosed are a system and a method for dissolving water-soluble gas such as oxygen into water, employing microporous membrane.

System and method for feeding gas into liquid

A method and system for controlled rate freezing and nucleation of materials is provided. The presently disclosed system and method provides the ability to rapidly cool the materials contained in vials or other containers within a cooling unit via forced convective cooling using a laminar and uniform flow of cryogen in proximity to the plurality of vials disposed within the cooling unit. The rapid cooling of the biological materials is achieved by precisely controlling and adjusting the temperature of the cryogen being introduced to the system as a function of time. The presently disclosed methods to systems also provide nucleation control via temperature quench and depressurized nucleation control.

Method and system for regulating the mixture of cryogen liquid and warm gas for a controlled rate cryogenic chiller or freezing system

Method and system for nucleation control in a controlled rate freezer (CRF)

A method and electrode assembly for treating a substrate with a non-equilibrium plasma in which the electrode assembly has two or more spaced barrier electrodes and a ground electrode spaced apart from the two spaced barrier electrodes for passage of a substrate to be treated. Plasma fluid medium is introduced between the barrier electrodes and is biased to provide a greater flow to an inlet region of the electrode assembly to help inhibit the ingress of air. Each of the barrier electrodes can be provided with central and leg sections having passages for introducing a cooling fluid into one of the leg sections and discharging said cooling fluid from the other of the leg sections. The central section can be provided with a transverse cross-sectional area less than that of the leg sections to increase velocity in the central section.

Electrode assembly for non-equilibrium plasma treatment

Method and electrode assembly for non-equilibrium plasma treatment

An impingement cooler or freezer includes at least one impingement section, having a plurality of channeling means defining apertures enabling cooling fluid impingement flow toward and onto objects on a conveyor and defining a channel through which the cooling fluid from the objects flows into a duct which carries the fluid to a unit that chills the fluid, and includes passage means which receives cooling fluid from said apertures and lets it enter the duct after having flowed toward and onto said objects, the fluid being impinged and recirculated by a fan.

Growing community of inventors

Naperville, IL, United States of America

Yeu-Chuan Simon Ho