G - Physics – 01 – N
Patent
G - Physics
01
N
73/100
G01N 25/00 (2006.01) F24F 3/044 (2006.01) F24F 5/00 (2006.01) F25D 17/06 (2006.01) F25D 31/00 (2006.01)
Patent
CA 1263542
ABSTRACT OF THE INVENTION A test chamber device comprising a generally enclosed chamber, a first duct communicating with the chamber and including therein selectively operable heating coils r a second duct communicating with the chamber and including therein selectively operable refrigerating coils, and a damper for closing the second duct when the heating coils are operating so that the refrigerating coils are isolated from air flow in the chamber.
491972
Macrae & Co.
Vander Schaaf Donald
Venturedyne Ltd.
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