Refrigeration – Automatic control – Preventing – removing or handling atmospheric condensate
Reexamination Certificate
2008-03-11
2008-03-11
Jiang, Chen Wen (Department: 3744)
Refrigeration
Automatic control
Preventing, removing or handling atmospheric condensate
C236S04400R, C236S04400R, C165S222000, C165S223000
Reexamination Certificate
active
11124909
ABSTRACT:
An anti-condensation control apparatus for a refrigeration device generally includes a sensor module and a control module. The control module receives an input from the sensor module and compares the input to a set point. The control module generates an output indicative of a difference between the input and the set point and updates the output based on the input from the sensor module. A heater modulator controls a heater based on the output from the control module to maintain a temperature of the outer surface of a refrigerated device such that relative humidity adjacent the sensor module is substantially between 90-95 percent relative humidity, or slightly above dew point.
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Pulse Modulating Anti-Sweat Control Operation and Installation Manual, Computer Process Controls, Inc.,Jan. 16, 1995; 14 pages.
Computer Process Controls Inc.
Harness Dickey & Pierce PLC
Jiang Chen Wen
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