Patent ID: 9482464
Filing Date: 2016-11-01
CPC Classification: F25D,G01N

Claim Text:
1. An environmental control apparatus, comprising: a test chamber; wherein the refrigerant cooling subsystem includes a set of refrigerant cooling coils to provide cooling from the refrigerant cooling subsystem; wherein the liquid nitrogen cooling subsystem includes a set of liquid nitrogen nozzles to provide cooling from the liquid nitrogen cooling subsystem; wherein the set of refrigerant cooling coils of the refrigerant cooling subsystem provides cooling directly to a set of computerized circuit board devices residing in a center cavity of the test chamber and the set of liquid nitrogen nozzles of the liquid nitrogen cooling subsystem provides cooling directly to the set of computerized circuit board devices residing in the center cavity of the test chamber when the set of computerized circuit board devices continue to reside in the center cavity of the test chamber during a particular electronic test of the set of computerized circuit board devices; and wherein the environmental control apparatus further comprises: