Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2008-07-29
2008-07-29
Lam, Thanh (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S263000
Reexamination Certificate
active
11519808
ABSTRACT:
Provided are a motor and a washing machine using the motor. The motor has a stator, a rotor, a rotor frame, a permanent magnet, and a comb polarizing ring. The rotor rotates against the stator. The permanent magnet is installed on the rotor frame and has protrusions with alternating North and South polarities. The comb polarizing ring includes a plurality of teeth disposed between the protrusions of the permanent magnet, and is formed of a material with a magnetism that is weaker than a magnetism of the protrusions.
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Jun Cha Seung
Min Byoung Wook
Lam Thanh
LG Electronics Inc.
McKenna Long & Aldridge LLP
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