Energy management system for chilled product vending machine
Patent 4467617 Issued on August 28, 1984. Estimated Expiration Date: 
February 16, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 16, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2962872 3373577 3747361 3877243 Food storage refrigeration cabinet having optional fast chill cycle Air conditioning fan control Air conditioning control system Heating and cooling efficiency control Patent #: 4136730 InventorsAssigneeApplicationNo. 06/466959 filed on 02/16/1983US Classes:62/180, External fluid and refrigeration producer62/158, Time delay of condition sensing or control operation62/182SequentialExaminersPrimary: Tanner, Harry B.Attorney, Agent or FirmInternational ClassesF25D 29/00 (20060101)F25D 17/06 (20060101) G07F 9/10 (20060101) AbstractA control circuit for cycling the evaporator fans on and off independently of the operation of the compressor of the refrigeration system is described. The evaporator fan is cycled on with the compressor and continues to run during the entire compressor ON cycle. A first timer causes the evaporator fan to run for an additional delay period following the cycling OFF of the compressor and the fans continue to blow air over the evaporator coil until the temperature of the evaporator coil is sufficiently above the freezing point of water (32° F., 0° C.). The fans are then cycled OFF. A second cycling timer is provided to intermittently cycle the evaporator fans on and off for predetermined short intervals following the above-described delay period, and during the time when the compressor is OFF. A third timer is provided to preclude freezing of the vended products and/or the evaporator coil when a vending machine is disposed in a below-freezing environment. This timer is enabled when the thermostatic temperature switch, which controls the compressor, opens, and will time out to cycle ON the evaporator fans for continuous operation for a predetermined period of time of the temperature switch remains open in excess of a predetermined period of time.Field of SearchPreventing, removing or handling atmospheric condensateTime delay of condition sensing or control operation Of external fluid or means External fluid and refrigeration producer Sequential Defrosting TIME OR PROGRAM ACTUATOR Including time or program actuator Means contacting heat absorber with fluid strange to system By utilizing fluid strange to system Time or program actuator Air controller or director | |
