Electricity: electrical systems and devices – Safety and protection of systems and devices – Compressor protective circuits
Reexamination Certificate
2002-10-11
2009-08-04
Jackson, Stephen W (Department: 2836)
Electricity: electrical systems and devices
Safety and protection of systems and devices
Compressor protective circuits
Reexamination Certificate
active
07570464
ABSTRACT:
In an overload protective apparatus of a compressor and its method capable of preventing damage of a compressor due to overload by removing an overload protector and using an operation control device operating the compressor, the overload protective apparatus includes a reference current setting unit for presetting a reference current value for operating the compressor normally; a microcomputer for generating a power cutoff signal when the detected current value is greater than the reference current value and generating a power supply signal when the detected current value is smaller than the reference current value; and a power supply unit for cutting off power applied to the compressor on the basis of the power cutoff signal or applying power to the compressor on the basis of the power supply signal.
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Bae Gyoo-Jong
Jun Young-Hoan
Lee Woo Geun
Shin Dong-Hee
Birch & Stewart Kolasch & Birch, LLP
Hoang Ann T
Jackson Stephen W
LG Electronics Inc.
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