F - Mech Eng,Light,Heat,Weapons – 24 – C
Patent
F - Mech Eng,Light,Heat,Weapons
24
C
F24C 15/00 (2006.01) F24C 7/08 (2006.01) G08B 21/00 (2006.01)
Patent
CA 2200642
A monitor and warning system for use with an appliance such as a stove for providing an alarm when the system senses that the appliance has been left on and in an unattended condition for more than a predetermined time interval. The system is designed to be activated when the appliance is sensed as being on, such as having a temperature greater than the ambient temperature. The activated system then continually reacts to the presence of the user to reset a timing device to a start condition. In the event the timing device is allowed to run without being reset for a predetermined time interval, it provides a signal to an alarm section which sounds an alarm or provides other types of warning signals in the area of the appliance or elsewhere. The system remains in an inactive condition when the appliance is not in use but is designed to be activated by a condition of the appliance and to then carry out its monitoring process for detecting an unattended condition without the user having to remember to arm the system.
Cette invention concerne un système de contrôle à alarme intégrée pour appareil ménager, une cuisinière par exemple, qui alerte l'utilisateur lorsque l'appareil est resté allumé et sans surveillance pendant une durée prédéterminée. Le système est conçu pour intervenir lorsque le détecteur d'état constate que l'appareil est allumé, c'est-à-dire que sa température est supérieure à la température ambiante. Il se désactive chaque fois que l'utilisateur manipule les commandes de l'appareil et remet la minuterie à zéro. Au bout d'une période prédéterminée sans remise à zéro de la minuterie, le système émet un signal d'alerte sonore, visuel ou autre à proximité de l'appareil ou ailleurs. Le système reste désactivé jusqu'à ce que l'appareil soit allumé; il s'enclenche automatiquement dès qu'il a détecté une élévation de la température des éléments chauffants de l'appareil sans que l'utilisateur ait à penser à l'activer.
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