Abstract: There is described a multiple-pane glazing unit which has top and bottom edges and two side edges and two or more, parallel glazing sheets enclosing a vertical cavity, or cavities. A convective-flow barrier is positioned adjacent to the bottom edge of the glazing sheets within the cavity, or cavities. The barrier is a strip-like member, dimensioned to be in sealing contact, in cold temperature conditions, with both glazing sheets which form a cavity between them. The strip is of a selected material, or of a physical configuration, such that it is flexible of itself or has a flexible edge or edges to accommodate variations in cavity width caused by, say, temperature changes along the length of the barrier. A second similar convective-flow barrier may be positioned adjacent and parallel to the top edge of the unit within the cavity and indeed, intermediate barriers may also be provided between top and bottom barriers and parallel thereto.

Abstract: There is described a multi-pane glazing unit, having top and bottom edges and two side edges. The glazing unit includes two parallel glazing sheets enclosing a vertical cavity. A convective-flow barrier is position adjacent to and extending substantially along the bottom edge of the glazing unit within the cavity. In operation, cold-side convective flow is prevented by the barrier from directly reaching a bottom region of the warm-side glazing sheet.

Abstract: There is described a multiple pane insulated sealed glazing unit having two or more glazing sheets which are maintained parallel and spaced apart by a resilient spacing and sealing assembly which runs around the periphery of the sheets. An insulating airspace is thus formed between the sheets. The assembly includes an inner spacer sandwiched between the sheets and located inwardly of the glazing edges, creating an outwardly facing perimeter channel. The inner spacer is comprised of a moisture permeable foam material which may be flexible or semi-rigid. The spacer contains desiccant material and has a pressure sensitive adhesive preapplied on two opposite sides adjacent the sheets. The inwardly directed face of the spacer is reistant to ultra-violet radiation and the spacer can be coiled for storage. The assembly also has an outer sealing filling in the channel. In a preferred embodiment the spacer is substantially backed with a flexible vapor and gas barrier coating, sheet or film.

Abstract: There is described a multiple layer sealed glazing unit comprising two or more glazing layers arranged in a parallel spaced apart relation, with an insulating spacer made of oriented thermoplastic polymer material interposed between the separate glazing layers and adjacent to the periphery thereof. The required physical properties of the insulating spacer are substantially governed by controlling the degree and directions or orientation of the molecular structure of the thermoplastic material or materials from which it is formed. Typically, the orientation of the polymer material used to manufacture the insulating spacer is largely in the longitudinal axis of the spacer.There is also described an insulating spacer for multiple layer sealed units.

Abstract: A method of manufacturing a multiple-pane sealed glazing unit wherein a first glazing pane is spaced from a second pane by a spacer, which is located around the periphery of the panes, and providing a UV-curable adhesive to connect at least part of the spacer and at least part of one pane. A thin layer of the UV-curable adhesive is applied to the panes or to the spacer and at a selected time in the operation of joining the spacer and the panes, the thin layer of adhesive is exposed to high intensity UV light so that the adhesive layer is at least partially cured.

Abstract: An anodic boot for the protection of steel reinforcement in concrete support structure from corrosion. The boot includes flexible panel means having first and second sides, at least one side of which is conductive polymer, and means for affixing the ends of the panel means about the circumference of the concrete support structure, maintaining the first side in contact with the exterior surface of the concrete support structure. By connecting the reinforcing bars to the negative side of a D.C. source and placing the positive side into the water surrounding the concrete support, a cathodic reaction occurs.