Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2008-12-16
2010-12-07
Leung, Quyen (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S084000, C310S099000, C310S090000, C310S100000, C475S162000
Reexamination Certificate
active
07847447
ABSTRACT:
An electric motor and a speed reduction device for reducing a rotational speed of the motor are contained in a housing composed of a front housing and a rear housing. The motor is positioned in the housing at its rear side, and the speed reduction device at its front side. The speed reduction device is composed of a sun gear rotatably supported on an eccentric portion formed on a rotor shaft, a ring gear having inner teeth engaging with outer teeth of the sun gear, and an output shaft loosely coupled to the sun gear for outputting the rotational torque at a reduced speed. The ring gear made of a magnetic material is positioned in contact with an axial end of a stator core of the motor to provide an additional magnetic flux path and thereby to increase an output torque of the motor.
REFERENCES:
patent: 3913408 (1975-10-01), Moore
patent: 4626722 (1986-12-01), Fukui
patent: 5145329 (1992-09-01), Zumbusch et al.
patent: 5163528 (1992-11-01), Kawamoto et al.
patent: 5382854 (1995-01-01), Kawamoto et al.
patent: 5415377 (1995-05-01), Britt et al.
patent: 6425838 (2002-07-01), Matsubara et al.
patent: 6701803 (2004-03-01), Tamai et al.
patent: 7038338 (2006-05-01), Sesselmann et al.
patent: 7326143 (2008-02-01), Kimura et al.
patent: 7501730 (2009-03-01), Kimura et al.
patent: 2005/0184606 (2005-08-01), Kokubu et al.
patent: 2005/0215375 (2005-09-01), Kimura et al.
patent: 2007/0145839 (2007-06-01), Kimura et al.
patent: 2010/0179013 (2010-07-01), Nakamura
patent: 2010/0194163 (2010-08-01), Cha et al.
patent: 09-047003 (1997-02-01), None
patent: 11-332176 (1999-11-01), None
patent: 3665564 (2005-04-01), None
Japanese Office Action dated Nov. 26, 2009, issued in corresponding Japanese Application No. 2008-015313, with English translation.
Kume Mikine
Nakayama Seiji
Denso Corporation
Kenerly Terrance
Leung Quyen
Nixon & Vanderhye PC
LandOfFree
Rotary actuator having electric motor and speed reduction... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rotary actuator having electric motor and speed reduction..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary actuator having electric motor and speed reduction... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4184557