Patent ID: 9557086
Date: 2017-01-31
CPC Classifications: F25C,F25D

Claim:
1. An ice making system, comprising: an ice producing subsystem to receive water from a water supply and to create ice from the received water; a positive air pressure subsystem to create and maintain a positive air pressure environment within the ice making system, said positive air pressure environment within the ice making system being an environment having an air pressure greater than an air pressure of ambient air outside the ice making system; said positive air pressure subsystem including a fan, a controller, a pressure sensor, and a high efficiency particulate air filter; said fan being located in said ice producing subsystem; said controller activating said fan, when said pressure sensor measures an air pressure within said ice producing subsystem below a predetermined air pressure, to maintain said positive air pressure environment within the ice making system; an ice storage device, operatively connected to said ice producing subsystem, for storing the created ice; and a solid air shield having an open position and a closed position; said solid air shield biased to said closed position; said solid air shield opening into said ice storage device; said solid air shield located between said ice producing subsystem and said ice storage device; said solid air shield, in said closed position, maintaining a positive air pressure environment within said ice producing subsystem, said positive air pressure environment within the ice producing system being an environment having an air pressure greater than the air pressure of the ambient air outside the ice making system; said solid air shield, in said open position, enabling transference of the created ice from said ice producing subsystem to said ice storage device; said solid air shield, in said open position, enabling air flow from said ice producing subsystem to said ice storage device when an air pressure in said ice producing subsystem is greater than an air pressure in said ice storage device; said ice storage device including a door; said solid air shield being in said closed position when the air pressure in said ice producing subsystem is equal to the air pressure in said ice storage device; said solid air shield configured to transition to said open position in response to the air pressure in said ice producing subsystem being higher than the air pressure in said ice storage device, said door of said ice storage device configured to cause the air pressure in said ice producing subsystem to be higher than the air pressure in said ice storage device, when said door is transitioned to an opened position.