Refrigeration – Automatic control – By accumulation on freezing surface – e.g. – ice
Reexamination Certificate
2005-05-03
2005-05-03
Jiang, Chen Wen (Department: 3744)
Refrigeration
Automatic control
By accumulation on freezing surface, e.g., ice
C062S150000, C062S003400
Reexamination Certificate
active
06886351
ABSTRACT:
A device and method is provided for sensing or predicting when condensation having a given physical state is present or imminent and for suppressing such condensation from a surface, such as a vehicle windscreen, eyewear, goggles, helmet visor, computer monitor screen, window, electronic equipment, etc, by preventing or removing it. A first thermal sensor is in thermally conductive contact with the surface. A second thermal sensor is in an environment separated from the surface. A humidity sensor is in the environment of the second thermal sensor. A circuit causes a condensation suppression mechanism to be activated for preventing or removing condensation having the given physical state from the surface when a temperature sensed by the first thermal sensor, a temperature sensed by the second thermal sensor, and a humidity sensed by the humidity sensor indicate that a condensation condition is either present or imminent and requires prevention or removal at the surface.
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Palfy Valerie
Skomsky Don A.
Fish & Richardson P.C.
Jiang Chen Wen
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