Magnetically operated fan device

Details Magnetically operated fan device Magnetically operated fan device

2004-12-07

2008-12-02

Barrera, Ramon M (Department: 2832)

Fluid reaction surfaces (i.e., impellers)

Actuation directly responsive to magnetic or electrical effect

C416S1700HM, C416S173000, C310S001000, C310S103000

Reexamination Certificate

active

07458775

ABSTRACT:
A magnetically operated fan device includes a fan member rotatably supported on a housing, one or more magnetic members disposed in the housing, a base supported in the housing, a follower rotatably attached to the base and having a frame, an axle rotatably attached to the frame and having one or more eccentric members for increasing moment of inertia of the axle, one or more magnetic members attached to the eccentric member for acting with the magnetic members of the housing, to bias the axle to continuously rotate relative to the frame of the follower. A coupling device may couple the axle to the fan member, to have the fan member to be driven continuously by the magnetic members and the eccentric members.

REFERENCES:
patent: 5304035 (1994-04-01), Carter
patent: 5558501 (1996-09-01), Wang et al.
patent: 6998723 (2006-02-01), Kong et al.
patent: 2004/0140722 (2004-07-01), Long
patent: 2005/0023916 (2005-02-01), Moe
patent: 2007/0007835 (2007-01-01), Wise
patent: 2007/0262665 (2007-11-01), Park

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