Electrical generator or motor structure – Dynamoelectric – Reciprocating
Reexamination Certificate
2007-06-15
2008-12-02
Lam, Thanh (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Reciprocating
C310S012060, C310S015000
Reexamination Certificate
active
07459811
ABSTRACT:
A reciprocating motor including a piston operatively connected with a magnet unit, a cylinder having an open end to receive the piston and having a groove formed at a circumference along an outer surface thereof near the open end, a stator assembly positioned around the cylinder and cooperating with the magnet unit to allow the piston to reciprocate within the cylinder, and a ring member being placed into the groove of the cylinder to be frictionally urged towards a portion of the stator assembly to maintain contact with and hold the portion of the stator assembly in place on the outer surface of the cylinder.
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Birch & Stewart Kolasch & Birch, LLP
Lam Thanh
LG Electronics Inc.
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