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US 5,329,781 AGranted
Frost control system
AssigneeRite-Hite Corporation
InventorsNancy L. Farrey, William W. Hoerner, David P. Leppert, Glenn A. Nicol
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AssigneeRite-Hite Corporation
InventorsNancy L. Farrey, William W. Hoerner, David P. Leppert, Glenn A. Nicol
Estimating the term…
A frost control system is described for inhibiting and removing frost from the door of a storage locker. Relatively cool air is received by an inlet to the frost control system at an inlet placed above the door. The air is drawn into the system by a blower which forces the air through the ducts of the system. The air passes through strip heaters within the vertical ducts of the defrost system positioned on either side of the door. The warm air is discharged horizontally across the bottom portion of the door and simultaneously rises creating a blanket of relatively warm air in comparison to the ambient area. Discharge apertures are included in the ends of the vertical ducts which blow a portion of the warmed air to the base of the door to enhance coverage of the door by the warmed air.
A frost control system for removing and/or inhibiting the formation of condensation upon a door having a top, a base, first and second side edges, and a controlled surface, said frost control system comprising:
A frost control system for a door having a top, a base, first and second side edges, and a controlled surface, said system comprising:
A method of frost control to reduce frost formation on a cold storage locker doorway having a controlled surface, a header and side walls extending from adjacent said locker door on the controlled surface side, said method comprising the steps of withdrawing a volume of air from the vicinity of the controlled surface side adjacent said header, warming the volume of air, and discharging at least a portion of the warmed volume of air from a set of apertures disposed adjacent to at least a one of the side walls toward the controlled surface and in a direction having a horizontal component.
Dependencies are inferred from the claim text.