Refrigerated case with anti-condensation control system
AssigneeComputer Process Controls, Inc.
InventorRichard Vogh
Life of this patent
Estimating the term…
Abstract
A refrigerated case for storing food product includes a sensor module and a control module. The control module receives input from the sensor module and compares the input to a set point to generate an output indicative of a difference between the input and the set point, and further updates the output based on the input from the sensor module. A heater module controls a heater attached to a control surface of the refrigerated case based on the output to maintain a temperature of air adjacent the sensor module above a dew point temperature of room air.
Claims20
A refrigerated case for storing food product comprising:
- a sensor module;
- a control module receiving an input from said sensor module and operable to compare said input to a set point and generate an output indicative of a difference between said input and said set point, said control module updating said output based on said input from said sensor module;
- and
- a heater modulator operable to control a heater attached to a control surface of the refrigerated case based on said output to maintain a temperature of air adjacent said sensor module above a dew point temperature of room air.
A bank of refrigerated cases for storing food product comprising:
- a sensor module having a first sensor positioned adjacent a control surface of at least one of the refrigerated cases;
- a control module receiving an input from said sensor module and operable to compare said input to a set point and generate an output indicative of a difference between said input and said set point, said control module updating said output based on said input from said sensor module;
- and
- a heater modulator operable to control a heater attached to said control surface of said at least one of the refrigerated cases based on said output to maintain a temperature of air adjacent said first sensor above a dew point temperature of room air.
Dependencies are inferred from the claim text.