Refrigeration – Automatic control – Of external fluid or means
Reexamination Certificate
2007-08-13
2011-11-15
Jules, Frantz (Department: 3785)
Refrigeration
Automatic control
Of external fluid or means
C062S089000, C062S187000, C062S255000, C062S408000, C062S440000
Reexamination Certificate
active
08056349
ABSTRACT:
A refrigeration apparatus includes an air chiller, a storage enclosure defining a compartment, a duct system, and a valve system. The air chiller blows chilled air into the duct system. The compartment has a first and a second opening, each of which is coupled to the duct system. The valve system has valves that can be moved to route the chilled air so that it enters into the first opening and exits the second opening, or vice versa. In one implementation, the first opening is at the top of the compartment and the second opening is at the bottom of the compartment, and the valve system is controlled by a control circuit that periodically switches the valves (via an actuator) to change the direction of the chilled air. This effectively maintains a relatively uniform temperature throughout the compartment.
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B E Aerospace, Inc.
Drinker Biddle & Reath LLP
Jules Frantz
Zec Filip
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