Fan device having an ultra thin-type structure with a...

Details Fan device having an ultra thin-type structure with a... Fan device having an ultra thin-type structure with a...

2006-01-11

2008-11-25

Paumen, Gary F. (Department: 2833)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S156320, C310S06700R

Reexamination Certificate

active

07456541

ABSTRACT:
A fan device includes a base plate, a flat-type impeller, an assembling member, a magnet sheet and a shaft member. The base plate includes an axial hole and at least one stator coil arranged thereon. The flat-type impeller is formed with an annular supporting plate and bent vanes while the assembling member is formed with an assembling hole and an upraised flange. The magnet sheet provides with at least one pair of alternatively opposite magnetic poles (i.e. north pole and south pole). A first distal end of the shaft member is extended through the flat-type impeller and inserted into the assembling hole of the assembling member while a second distal end of the shaft member is inserted into the axial hole of the base plate. The flat-type impeller is positioned and sandwiched in between the assembling member and the magnet sheet so as to constitute a thin-type structure.

REFERENCES:
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patent: 4763037 (1988-08-01), Hashimoto et al.
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patent: 5217351 (1993-06-01), Meier et al.
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patent: 2005/0168088 (2005-08-01), Wada et al.
patent: 2006/0091743 (2006-05-01), Iwasaki et al.
patent: 2007/0075597 (2007-04-01), Seidler et al.
patent: 2007/0114869 (2007-05-01), Horng et al.

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