A door gasket at a refrigerator freezer is kept in place by an elastic part of the gasket with two legs holding around a waist of a ridge-shaped element, which part in profile substantially has the shape of an arc of a circle extending over about 270. The invention uses parallel data paths that allow standard correlation of signals in parallel with verification of the lock signal to determine whether the system has locked onto the proper signal within the scanned signal window. The bottoms of the metallic frames serve as the bottom contacts for surface mounting to a motherboard. The admixture allows increased flow and reduced water use in concrete and gypsum slurries used in gypsum panel production.