Spacer for double glazed windows incorporating interlock means

Details Spacer for double glazed windows incorporating interlock means Spacer for double glazed windows incorporating interlock means

E - Fixed Constructions

06

B

108/32.5

E06B 3/66 (2006.01)

Patent

CA 1167323

ABSTRACT OF THE DISCLOSURE A spacer tube for a hermetically sealed double glazed window in accordance with one aspect of the invention is formed from an elongated strip of metal bent into a hollow elongated tubular shape. The spacer tube has opposing side wall portions and a base extending between and connecting the side wall portions. The spacer tube also includes a further wall spaced from the base, such further wall defining a region wherein the longitudinal edges of the strip extend toward each other. That surface of the base which faces into the interior of the spacer tube has a plurality of closely spaced ridges therein, the ridges being spaced apart in the lengthwise direction of the spacer tube and the individual ridges extending generally transversely of the longitudinal axis of the tube. The ridges are located at least in the regions adjacent the ends of the spacer tube thereby, in use, to provide for locking engagement with teeth on the arms of corner pieces when inserted endwise into the ends of the spacer tube. The base is shaped in cross-section so as to define a crest projecting a short distance into the interior of the hollow spacer tube with the transversely disposed ridges being formed in the crest. The arms of the corner piece are disposed at right angles to one another and they are shaped to fit snugly into adjacent ends of the spacer tubes. Each arm of the corner piece has a face portion disposed in close proximity to the base of the associated spacer tube when in use such face having rigid teeth thereon which interengage with certain of the ridges defined on the base of the spacer tube.

436324

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