F - Mech Eng,Light,Heat,Weapons – 28 – D
Patent
F - Mech Eng,Light,Heat,Weapons
28
D
98/19, 257/4
F28D 19/00 (2006.01) F04D 29/42 (2006.01)
Patent
CA 1104122
Abstract A ventilator having a rotating drumlike heat exchanging fan and a housing with separation walls and a stationary conical member arranged in the hollow of the fan. Separation walls cooperate with external and internal sides of the fan and have lips arranged according to a preselected pattern.
311036
A/s Norlett
Johnson & Hicks
LandOfFree
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