A spacer strip for a sealed window unit and a method for manufacture of the strip.

摘要

A spacer strip for use in a sealed window unit is manufactured from a pultruded fibreglass reinforced body providing a substantially closed hollow body (10) with a slot (14) along one side. The strip is manufactured by pultrusion using a die (41) which is slightly more open than the finished product including a mandrel (48) supported by a web (47) wider than the eventual slot. Closing of the body into the eventual shape is obtained either by differential shrinkage using matting (51) on the outer surface of the body or by squeezing the body between rollers (53). A sealed window unit incorporates the spacer strips (10) between two panes of glass (16, 17) adjacent the edges thereof with the coefficient of thermal expansion of the spacer strip tailored to that of the glass. A corner member (30) has a leg for engaging into the end of the strip 10 with pro)ections (34, 35) at the outer surface to avoid opening the slot (14).