F - Mech Eng,Light,Heat,Weapons – 26 – B
Patent
F - Mech Eng,Light,Heat,Weapons
26
B
34/47
F26B 21/08 (2006.01)
Patent
CA 1278422
Abstract of the Disclosure First and second ported ducts are associated with a drying chamber. A flow control housing has first and second compartments communicating respectively with the first and second ducts. These compartments also have openings which communicate with atmosphere. A fan is employed which draws air from the drying chamber into one of the ducts and through one of the compartments to atmosphere. At the same time a fan on a common shaft draws in make-up air from the atmosphere and forces it through the other of the compartments and into the other duct for discharge into the dryer. The fans are re- versible, and the flow control housing is combined with a double acting heat exchanger which extracts heat from exhaust air in one compartment and transfers it to the other compartment for preheating make-up air. A damper is provided in the flow control housing on the atmosphere side thereof for precise control of exhaust and make-up air.
531271
Carter John L.
Sprague Michael M.
Carter John L.
Ridout & Maybee Llp
Sprague Michael M.
LandOfFree
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