Textiles: fluid treating apparatus – Machines – Combined
Reexamination Certificate
2005-03-16
2009-12-29
Perrin, Joseph L (Department: 1792)
Textiles: fluid treating apparatus
Machines
Combined
C188S266100, C188S322170, C188S322180, C188S322220
Reexamination Certificate
active
07637128
ABSTRACT:
Oil damper for a drum type washing machine including a hollow cylinder having an oil chamber for filling oil therein, a tub holder fixedly secured to one end of the cylinder for securing the damper to a tub side, a shaft passed through, and exposed from the other end of the cylinder, a base holder fixedly secured to the shaft at an end thereof exposed to an outside of the cylinder for securing the damper to a base side of the cabinet, and a piston having a plurality of oil holes, for sliding inside of the cylinder, wherein at least one of above components is formed by plastic injection molding, thereby providing a new oil damper which reduces a production cost significantly, and has a good productivity, and high operation reliability.
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LG Electronics Inc.
McKenna Long & Aldridge LLP
Perrin Joseph L
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