Abstract: An electrodeionization apparatus is provided comprising an ion-concentrating compartment partially bounded by an anion permeable membrane and also partially bounded by a cation permeable membrane, and a first ion exchange material domain disposed within the ion-concentrating compartment, wherein the first ion exchange material domain is contiguous with at least a portion of an ion-concentrating compartment side surface of one of the anion permeable membrane and the cation permeable membrane, and is spaced apart from the other one of the one of the anion permeable membrane and the cation permeable membrane. In the case where the one of the anion permeable membrane and the cation permeable membrane, having the at least a portion of an ion-concentrating compartment side surface with which the first ion exchange material domain is contiguous, is an anion permeable membrane, the first ion exchange material domain is an anion exchange material predominant domain.

Abstract: A window frame assembly includes a frame member having a longitudinally extending channel with a bottom surface and front and rear walls. Each wall has a longitudinally extending recess adjacent to the bottom surface. The window frame assembly also has a plurality of support members for a window unit, the support members being longitudinally spaced along the channel. Each support member rests on the bottom surface of the channel and has front and rear longitudinally extending projections in snapping engagement in the recesses in the front and rear walls of the channel.