Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2002-12-16
2008-11-25
Le, Dang D (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S112000
Reexamination Certificate
active
07456538
ABSTRACT:
A rotary drive mechanism is disclosed comprising a housing (10), a first motor (12) having a first rotor (38) and a first stator (32) connected to the housing and a second motor (50) having a second rotor (52) and a second stator (54) connected to the housing characterised in that the second motor is mechanically independent of the first motor whereby acceleration torques of the first motor are at least partially inertia balanced by the second motor. The balancing may be effected by equal and opposite rotation of the second motor. Control means may be provided to provide the second motor with a current which is proportional to that supplied to the first motor. Also disclosed is a positioning device and a probe having the rotary drive mechanism.
REFERENCES:
patent: 4375047 (1983-02-01), Nelson et al.
patent: 4636960 (1987-01-01), McMurtry
patent: 4723735 (1988-02-01), Eisenhaure et al.
patent: 4755700 (1988-07-01), Yongning et al.
patent: 4785213 (1988-11-01), Satake
patent: 5012170 (1991-04-01), Atlas
patent: 5042753 (1991-08-01), Atlas
patent: 5357180 (1994-10-01), Speicher
patent: 5550413 (1996-08-01), Bernus et al.
patent: 5813823 (1998-09-01), Hofmeister
patent: 6297575 (2001-10-01), Yang
patent: 6633051 (2003-10-01), Holloway et al.
patent: 6633143 (2003-10-01), Weston et al.
patent: 6737778 (2004-05-01), Daikoku et al.
patent: 2 772 207 (1999-06-01), None
patent: WO 01/57473 (2001-08-01), None
McFarland Geoffrey
McMurtry David Roberts
Nai Kenneth Cheng-Hoe
Weston Nicholas John
Le Dang D
Oliff & Berridg,e PLC
Renishaw PLC
LandOfFree
Reaction balanced rotary drive mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Reaction balanced rotary drive mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reaction balanced rotary drive mechanism will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4032878