Refrigeration – Automatic control – Withdrawing or adding refrigerant from or to normally closed...
Reexamination Certificate
2008-05-27
2008-05-27
Jones, Melvin (Department: 3744)
Refrigeration
Automatic control
Withdrawing or adding refrigerant from or to normally closed...
C062S509000
Reexamination Certificate
active
11417082
ABSTRACT:
A refrigeration system includes a heat exchanger that is operable to cool a flow of compressed refrigerant and a first sensor coupled to the heat exchanger and operable to generate a first signal indicative of a heat exchanger liquid level. A reservoir is in fluid communication with the heat exchanger to receive the flow of cooled compressed refrigerant and a second sensor is coupled to the reservoir and is operable to generate a second signal indicative of a reservoir liquid level. A processor is operable to calculate a first weight of liquid within the heat exchanger in response to the first signal, and to calculate a second weight of liquid within the reservoir in response to the second signal.
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Jones Melvin
Michael & Best & Friedrich LLP
Zero Zone, Inc.
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