Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2011-08-09
2011-08-09
Leung, Quyen (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S036000, C310S037000, C310S038000, C310S039000, C310S083000, C310S116000, C074S010900
Reexamination Certificate
active
07994672
ABSTRACT:
The actuator system has a external rotor motor having: (i) an internal armature configured as a stator having a set of coils wrapped around a set of arms, and (ii) an external permanent magnet rotor having a set of poles configured to rotate less than 90 degrees around the stator. The actuator system has a drive shaft configured to be rotated by the external rotor motor. The actuator system has a drive train connecting the external permanent magnet rotor to the drive shaft, and configured to provide gear ratio to the drive shaft.
REFERENCES:
patent: 2789411 (1957-04-01), Ensign et al.
patent: 3964367 (1976-06-01), Stoferle et al.
patent: 4398167 (1983-08-01), Dickie et al.
patent: 4496887 (1985-01-01), Ichihara et al.
patent: 4704567 (1987-11-01), Suzuki et al.
patent: 5053655 (1991-10-01), Benschop et al.
patent: 5979254 (1999-11-01), Blanchet et al.
patent: 6448673 (2002-09-01), Brown et al.
patent: 6476526 (2002-11-01), Hsieh
patent: 6481415 (2002-11-01), Cook
patent: 6762575 (2004-07-01), Douglas
patent: 7156217 (2007-01-01), Raber
patent: 7262569 (2007-08-01), Douglas
patent: 2003/0136930 (2003-07-01), Dowden et al.
patent: 2005/0121989 (2005-06-01), Suzuki
patent: 2010/0164311 (2010-07-01), Mock
patent: 2756660 (1998-06-01), None
Fleisher, William A., “Brushless Motors for Limited Rotation,” Machine Design, vol. 61, No. 25, Dec. 7, 1989, pp. 97-100.
BainwoodHuang
Kim John K
Leung Quyen
Woodward HRT, Inc.
LandOfFree
Limited angle external rotor motor actuator system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Limited angle external rotor motor actuator system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Limited angle external rotor motor actuator system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2791513