By-pass type portable vacuum cleaner

Details By-pass type portable vacuum cleaner By-pass type portable vacuum cleaner

A - Human Necessities

47

L

15/57

A47L 5/24 (2006.01)

Patent

CA 1134570

BY-PASS TYPE PORTABLE VACUUM CLEANER ABSTRACT OF THE DISCLOSURE A portable vacuum cleaner with a bypass fan arrangement: the main fan draws air into the vacuum cleaner housing axially and discharges it radially from the housing; a plenum chamber receives the air from the housing outlet and redirects the outlet air in a direction away from the housing inlet; the motor for the main fan is cooled by a motor cooling fan drawing air over the motor from the end of the motor housing opposite its inlet end, the main air flow and cooling air flows being separate; the housing is shaped internally to assure the separation of air flows just des- cribed.

331884

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