Air-blowing apparatus of cleaner

Details Air-blowing apparatus of cleaner Air-blowing apparatus of cleaner

2007-02-20

2007-02-20

Nguyen, Ninh H. (Department: 3745)

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Vane or deflector

C416S228000

Reexamination Certificate

active

10916587

ABSTRACT:
Disclosed herein is an air-blowing apparatus of a cleaner. The air-blowing apparatus comprises a fan having a plurality of blades spaced apart from each other in the circumferential direction of the fan for generating a blowing force in the centrifugal direction thereof, and a diffuser disposed outside the fan in the radial direction of the fan for diffusing air blown from the fan. Each blade is formed such that at least a part of the blade is shorter than the other part of the blade extending to the outer diameter of the fan, whereby noise is reduced while blowing efficiency is not affected.

REFERENCES:
patent: 2362514 (1944-11-01), Warner
patent: 2967013 (1961-01-01), Dallenbach et al.
patent: 5178516 (1993-01-01), Nakagawa et al.
patent: 5595473 (1997-01-01), Nagaoka et al.
patent: 6592329 (2003-07-01), Hirose et al.
patent: 2426028 (2001-04-01), None
patent: 1300350 (2001-06-01), None
patent: 4-311698 (1992-11-01), None
patent: 05-087094 (1993-04-01), None
English language Abstract of JP 4-311698.
English Language Abstract of CA 1300350.
English language Abstract of JP 05-087094.

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