Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2007-06-26
2010-11-23
Mullins, Burton (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S091000, C310S156010
Reexamination Certificate
active
07839039
ABSTRACT:
A rotary shaft of a rotor including a magnet with a plurality of magnetic poles arranged at equal intervals on an outer circumference is supported at both ends by bearings. By externally fitting the inner ring of one bearing to the rotary shaft and holding it to be immovable in an axial direction and loosely fitting the outer ring of the bearing into the support hole and positioning it with belleville springs which are in contact resiliently with both sides, the rotary shaft and the rotor are supported so that they are movable in an axial direction within a movement amount of not greater than 2 mm according to a movement of the bearing caused against spring forces of the belleville springs.
REFERENCES:
patent: 3068975 (1962-12-01), Theuer
patent: 3786289 (1974-01-01), Baclawski et al.
patent: 4613778 (1986-09-01), Wrobel et al.
patent: 5051632 (1991-09-01), Lautner et al.
patent: 6133661 (2000-10-01), Okawa et al.
patent: 6717314 (2004-04-01), Horst et al.
patent: 6952062 (2005-10-01), Mancl et al.
patent: 7548003 (2009-06-01), Nickel-Jetter et al.
patent: 2002/0185927 (2002-12-01), Chihara et al.
patent: 2004/0061410 (2004-04-01), Ando et al.
patent: 2005/0012417 (2005-01-01), Fasterding et al.
patent: 2005/0018935 (2005-01-01), Simpson et al.
patent: 2005/0225194 (2005-10-01), Murakami et al.
patent: 2005/0269895 (2005-12-01), Innami et al.
patent: 2006/0043805 (2006-03-01), Bradfield
patent: 2006/0170299 (2006-08-01), Maley et al.
patent: 6-303752 (1994-10-01), None
Ball—bearing.pdf (wikipedia.com).
Ball—bearing.pdf, Sep. 2008.
Miller—ch4.pdf : Miller et al, Design of Permanent Magnet Motors, 1994.
J.R. Hendershot Jr et al, Design of Brushless Permanent-Magnet Motors, 1994: Magna Physics Publishing and Clarendon Press, Oxford, pp. 3-6, 3-7, 3-10, 3-11, 3-32 and 3-33.
Horie Tetsuo
Kitabayashi Minoru
Matsubara Ken
Takahashi Tomofumi
Birch Stewart Kolasch & Birch,LLP
JTEKT Corporation
Kim John K
Mullins Burton
LandOfFree
Brushless motor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Brushless motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Brushless motor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4184560