Abstract: A power transfer system for imparting power to at least one functional element, such as a movable glass-containing functional element, such as a sliding glass door. The power transfer system preferably includes a magnetic induction power transfer mechanism with a power transfer circuit having first and second separated coils, and a resonant circuit power driver having a resonant frequency. The power transfer mechanism is designed to apply power to the functional element and/or to other devices or systems connected to it. The power transfer system may include an electronic feedback mechanism with an electronic feedback circuit for sensing a predetermined condition concerning the functional element.

Abstract: An apparatus, system and method for warming food by controlled heating of heat retention objects such as cookware items or pellets located on a trivet positioned on a countertop, using heating control units, such as induction heating units, remotely located beneath the countertop. The preferred trivet insulates the countertop against damages, and also includes circuitry enabling the indication or display of its proper positioning on the countertop, and also indicating whether the heating unit is heating the heat retention object.

Abstract: A detachable, magnetic tagging mechanism, and a system and method for using it, for conveying information related to control over the sensing of parameters, such as the heating of cookware or other food containers, to a reader communicating with, e.g., heating controls of a heater. The tagging mechanism may be removably attached to the cookware or other food container, is heat-resistant, and its shape can be changed to accommodate the heating of different sizes and shapes of cookware or other items. The tagging mechanism, system and method of the invention may be employed with different types of heaters, such as but not limited to magnetic induction heaters, and may communicate with readers using RFID or other technology and other communication modes and media.