US Patent 11219326 Lunch box with internal chiller and temperature monitor

A lunch box includes a housing having a bottom surface, a front wall, a rear wall, two opposing sidewalls and an open top in communication with an interior storage chamber. A pivotal lid encloses the open top to provide selective access to the interior storage chamber. A freeze pack and an accessory tray seamlessly fit within the interior storage chamber. The tray houses a sensor that measures temperature, pressure and humidity within the interior chamber, and transmits the measured data to a portable electronic device. Therefore, a remote user can monitor the condition of the storage chamber without opening the lid or otherwise accessing the lunch box.