Air block

Details Air block Air block

F - Mech Eng,Light,Heat,Weapons

01

D

F01D 1/30 (2006.01) F01D 7/00 (2006.01) F01P 5/02 (2006.01)

Patent

CA 2080268

CANADA AIR BLOCK FREDERICK H.G. DRURY AND CLARENCE ISERT ABSTRACT OF THE DISCLOSURE A method of blocking air flow past a fan uses a reversible fan being rotated with its blades in the neutral position. While the fan does not force air either one way or the other, the fan creates an air block to stop air from moving past the fan.

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