Abstract: A silicone sheet or multiple pads lie over electric heating elements. The sheet may be one continuous sheet, or it may be divided into separate components for each heating element. If it's a continuous pad, openings sized for the heating element and a cover sized for the opening cover the heating element. If separate pads are used, each pad has an opening, and a cover sized for the opening covers the heating element under the opening. When using one heating element, the user removes its removable cover and places the pot or pan in the opening. Any splatter lands on the pad, and cleaning the splatter from the pad does not damage the glass top.

Abstract: A method for the desulfurization of a nitrogen oxide adsorber of an exhaust gas purification device for a combustion system employs desulfurization phases that are intermittently implemented by a desulfurization control unit. During each desulfurization phase, the carbon monoxide concentration and/or the lambda value of the exhaust gas stream exiting the nitrogen oxide adsorber is recorded. A localized maximum that appears in the recorded course of the carbon monoxide concentration over time, or a downward slope that appears in the established course of the lambda value over time, falling from a temporary plateau value, is employed as criterion for terminating the desulfurization phase. The method may be used, for example, in exhaust gas purification devices in primarily lean-burning vehicle combustion engines.