Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2006-06-23
2009-11-03
Zarroli, Michael C (Department: 2839)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S036000
Reexamination Certificate
active
07612479
ABSTRACT:
A scanner has a rotor, and a stator disposed in the outside of the rotor. The rotor includes a shaft, and a permanent magnet mounted on the outer circumferential side of the shaft. The stator includes a casing, a yoke held in the inner circumferential side of the casing, and coils disposed in the inner circumferential side of the yoke. The permanent magnet of the rotor has radially depressed grooves formed in its outer circumferential portion. The torque constant of the scanner is circumferentially equalized by the grooves.
REFERENCES:
patent: 3504209 (1970-03-01), Russell
patent: 5654600 (1997-08-01), Nomura et al.
patent: 5682073 (1997-10-01), Mizuno
patent: 6081058 (2000-06-01), Suzuki et al.
patent: 6664688 (2003-12-01), Naito et al.
patent: 6809451 (2004-10-01), Brown
patent: 6982504 (2006-01-01), Brown
patent: 7411329 (2008-08-01), Murakami et al.
patent: 2003-307700 (2003-10-01), None
patent: 2004-88855 (2004-03-01), None
Doi Akira
Okubo Yaichi
Otsuki Haruaki
Sakamoto Atsushi
Toyama Souichi
Crowell & Moring LLP
Hitachi Via Mechanics Ltd.
Zarroli Michael C
LandOfFree
Scanner for equalizing torque constant and reducing torque... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Scanner for equalizing torque constant and reducing torque..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scanner for equalizing torque constant and reducing torque... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4080320