초록 ▼

A device that is retrofittably adapted to a refrigerator warns of a refrigerator door ajar condition. The normal refrigerator internal light is removed and the device is fitted into the light fixture. The light may then be affixed to the device. The device thus receives AC potential each time the re

A device that is retrofittably adapted to a refrigerator warns of a refrigerator door ajar condition. The normal refrigerator internal light is removed and the device is fitted into the light fixture. The light may then be affixed to the device. The device thus receives AC potential each time the refrigerator door is ajar. A time interval counter measures how long the door is ajar, and if a predetermined time interval is exceeded, a alarm is given. The device may also monitor internal refrigerator storage space temperature and sound an alarm when the refrigerator door is ajar if internal temperature is high, to alert of perhaps impending failure. The alarm may include audible, visual, and wirelessly transmitted signals.

대표청구항 ▼

[ What is claimed is:] [12.] A retrofittably attachable door ajar warning device for use with a refrigerator having a light receptacle to which an internal light may be removably attached for activation when the refrigerator door is ajar, the device comprising:a housing including an adaptor sized to

[ What is claimed is:] [12.] A retrofittably attachable door ajar warning device for use with a refrigerator having a light receptacle to which an internal light may be removably attached for activation when the refrigerator door is ajar, the device comprising:a housing including an adaptor sized to matingly attach to said light receptacle after removing said internal light therefrom;circuitry, disposed within said housing, coupled to said adaptor to receive AC potential from said refrigerator when said refrigerator door is ajar;said circuitry including means for measuring from presence of said AC potential length of time said refrigerator door is ajar; andsaid circuitry further including means for signalling an alarm when measured time said refrigerator door is ajar exceeds a predetermined threshold.