• US 3,837,129 A
  • Filed: 10/20/1972
  • Issued: 09/24/1974
  • Est. Priority Date: 10/29/1971
  • Status: Expired due to Term
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First Claim
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1. A multiple glazing unit including two glass sheets and an intermediate means comprising at least one sheet of polycarbonate plastic material of high impact resistance interposed between said glass sheets, said intermediate means being mounted in a metal mounting strip positioned between the glass sheets along the edges thereof and, wherein the mounting strip has U-profile, and at at least one of each pair of opposite edges the intermediate means has clearance in the strip for thermal expansion in its own plane greater than the corresponding expansion of the glass sheets, and the U-profile mounting strip, in which the intermediate means is inserted, on the inner side of its flanges at the free edges thereof is formed with a pair of beads engaging the intermediate means while the remaining part of the flanges has a clearance larger than the thickness of the intermediate means, and the U-profile mounting strip on the outer sides of its flanges has projections resting on a pair of hollow metal spacing strips which are localized between the intermediate means and the glass sheets and which are retained together with the U-profile mounting strip between the glass sheets by a sealing composition.

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