F - Mech Eng,Light,Heat,Weapons – 25 – D
Patent
F - Mech Eng,Light,Heat,Weapons
25
D
F25D 29/00 (2006.01) F25B 49/00 (2006.01)
Patent
CA 2270583
"Alarm system for refrigeration units. It is known to have a temperature sensor, and a thermometer/alarm unit. The system may be electrically powered with a backup battery or may be battery operated. When the internal temperature of the refrigeration unit rises above or falls below a temperature range, that is preset into the system by the user or the manufacturer, the alarm system will sound. The alarm may have a manual or automatic switch to turn the system off and on. This alarm system can be built into any type of refrigeration unit.
Hall Dale R.
Hall Dolly L.
Hall Dale R.
Hall Dolly L.
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