A control device for the use of a temperature excess control system on an electrically heated blanket. (Machine-translation by Google Translate, not legally binding)

摘要

A control device for use in a system for controlling excess temperature in an electrically heated blanket, system comprising first and second electric heaters that are in heat transfer relationship with first and second temperature-sensitive elements, first and second switch contacts normally open that are movably in engagement with each other thanks to said thermally sensitive elements when said second heater supplies a predetermined greater amount of heat to said second element than said first heater supplies said first element, said heaters being connected in series with two electrical conductors distributed on the blanket, said two conductors being spaced apart from each other by a sensing material having a negative coefficient of temperature in their impedance, said perceptive layer in shunt being also only connected with said second heater, characterized because a heat dissipating member is in intimate heat transfer relationship with the first heat responding element to increase the heat difference between the thermally responsive elements when heated by the heaters. (Machine-translation by Google Translate, not legally binding)