DEVICE FOR HEATING TO CONSUMPTION TEMPERATURE A LIQUID COMMESTIBLE PRODUCT SEALED IN A DISPOSABLE CONTAINER

摘要

ABSTRACT OF THE SPECIFICATION:A presser member, into which the container is loaded,is manually depressable against the action of its returnspring into pressure-contact engagement of the containerwith an electric heating plate containing a PTC heatingresistor. The depression stroke produces closure of aswitch to energize both the PTC resistor and an electromagnetkeeping the presser member in its depressed condition. Atimer circuit opens the switch at the elapse of a prealablyexperimentally determined heating time during which theliquid reaches its consumption temperature, whereby heatingis terminated and the return spring lifts the pressure memberwith the container to unloading position. The heating processcomprises a fast initial heating period until the PTC resistortemperature reaches a predetermined maximum value, and theconsumption temperature of the liquid is reached by intermittently energizing the PTC resistor at short intervals(fraction of a second) in. a high-temperature range directlyadjacent said maximum value without exceeding the latter.(Fig.4).- 1 -