Patent ID: 7866312
Filing Date: 2011-01-11
Classification: F24C

Abstract:
1. A ventilation hood with a safety system for use with a cooktop having at least one heating element operatively associated therewith, the ventilation hood comprising: a duct structure for having air flow through the duct structure; a variable speed fan associated with said duct structure for forcing air to flow from above a cooktop through the duct structure; a temperature sensor for sensing temperature above the cooktop; an alarming unit for providing at least one type of alarm indication; and a controller unit for controlling operation of the fan and alarming unit, said controller unit configured for activating the fan at a first speed immediately when the at least one heating element is activated, increasing the speed of the fan and activating the alarming unit to provide a first alarm indication immediately when the temperature above the cooktop reaches a first predetermined level, and for causing the alarming unit to provide a second alarm indication immediately when the temperature above the cooktop reaches a second predetermined level.