Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2006-01-31
2006-01-31
Schuberg, Darren (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
Reexamination Certificate
active
06992416
ABSTRACT:
A rotor portion, which is supported rotatably with respect to a housing, rotates due to magnetic action with a magnet attached to the rotor portion by flowing electric current through an electromagnetic coil. Vibration of the rotor portion becomes large if centrifugal force is generated due to eccentricity or unbalance. Positional sensors detect the deviations. In order to eliminate the deviations, electric current flows through an electromagnetic coil, causing a force in a radial direction to act on the rotor portion. A bearing device capable of correcting minute shaft deviations is thus obtained.
REFERENCES:
patent: 6307295 (2001-10-01), Murabe et al.
patent: 6442857 (2002-09-01), Atsuhiko et al.
patent: 6617734 (2003-09-01), Taniguchi et al.
patent: 11-311511 (1999-11-01), None
Sohara Yoshitsugu
Watanabe Hiroshi
Hanh Nguyen N.
Morgan & Finnegan , LLP
Schuberg Darren
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