Method of controlling multiple refrigeration devices

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20080148751A1
SERIAL NO

12001491

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A refrigeration system for use with a plurality of temperature controlled cases is disclosed. The refrigeration system includes a cooling system having at least one compressor and a condenser for supplying liquid refrigerant to a cooling element associated with each case. Each cooling element receives liquid refrigerant through a liquid refrigerant supply line and returns vapor refrigerant through a suction line. The refrigeration system further includes a control module having a stored reference temperature (T ref) for each case, a temperature sensor disposed in each case for generating a signal representative of the actual temperature within the case (T act), and an expansion device provided at the liquid refrigerant supply line side of each case. The control module compares T ref with T act and moves the expansion devices between an open position and a closed position accordingly to obtain or maintain the desired temperature in each temperature controlled case.

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Patent Owner(s)

Patent OwnerAddress
DOVER SYSTEMS INC2180 SATELLITE BOULEVARD SUITE 350 DULUTH GA 30097

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Swofford, Timothy Dean Midlothian, VA 10 109

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