Pumps – Motor driven – Motor within rotary pumping member
Reexamination Certificate
2007-08-29
2011-11-15
Williams, Joseph L (Department: 2889)
Pumps
Motor driven
Motor within rotary pumping member
C417S423800, C310S058000, C310S062000, C310S06700R
Reexamination Certificate
active
08057195
ABSTRACT:
An outer rotor type fan-motor includes: a rotational shaft; a bearing assembly that rotatably supports the rotational shaft; a stator installed at an outer side of the bearing assembly; a permanent magnet assembly that covers an outer side of the stator at a certain distance and is installed at the rotational shaft; and a fan that includes a shaft fixing part for fixing the rotational shaft, a hub for covering an outer side of the permanent magnet assembly at a certain distance and blades formed around the hub. An insulation space is formed between the permanent magnet assembly and the fan to prevent transfer of vibration and noise of the permanent magnet assembly to the fan, and vibration or noise of high frequency can be reduced.
REFERENCES:
patent: 10-2001-0006543 (2001-01-01), None
patent: 10-2001-0085229 (2001-09-01), None
patent: 10-2004-0047127 (2004-06-01), None
patent: 10-2005-0019351 (2005-03-01), None
International Search Report dated Dec. 10, 2007.
Lee Dong-Il
Shin Hyoun-Jeong
KED & Associates LLP
LG Electronics Inc.
Williams Joseph L
LandOfFree
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