Heat exchange – Heating and cooling – Heating and cooling of the same material
Patent
1984-08-31
1986-02-25
King, Lloyd L.
Heat exchange
Heating and cooling
Heating and cooling of the same material
62159, F25B 2900
Patent
active
045722838
ABSTRACT:
A test chamber device comprising a generally enclosed chamber, a first duct communicating with the chamber and including therein selectively operable heating coils, 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.
REFERENCES:
patent: 1895876 (1933-01-01), Bennett et al.
patent: 2718119 (1955-09-01), Prince
patent: 2739794 (1956-03-01), Graham
patent: 4106552 (1978-08-01), Hufford
King Lloyd L.
Wehr Corporation
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