Refrigeration – Disparate apparatus utilized as heat source or absorber – With vapor compression system
Reexamination Certificate
2005-03-08
2005-03-08
Norman, Marc (Department: 3744)
Refrigeration
Disparate apparatus utilized as heat source or absorber
With vapor compression system
C062S181000, C062S184000
Reexamination Certificate
active
06862894
ABSTRACT:
A water-cooled auxiliary condenser device200receives refrigerant from an external refrigeration system210just downstream from its air-cooled condenser110. The refrigerant passes through a water-cooled condenser250, and the refrigerant state is sensed by a temperature or pressure sensor226. If the sensed state of the refrigerant rises above a first threshold, the flow of water through the water-cooled condenser250is increased, e.g., turned ON, using a controllable water valve234. When the sensed state of the refrigerant drops below a second threshold, the water flow through the water-cooled condenser250is decreased, e.g., turned OFF. The refrigerant returns to the refrigeration system just upstream from its liquid receiver120. In the event that air-cooled condenser110fails, device200automatically activates the water-cooled condenser250to maintain safe refrigeration temperatures in the appliance. When not required, device200remains passive and does not use any water or electric.
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Lumen Intellectual Property Services Inc.
Miles Donald R.
Norman Marc
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