Heat reflecting window
AssigneePPG Industries, Inc.
InventorsJames S. Chess, James A. Davis, Robert G. Spindler
Life of this patent
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Abstract
Improved thermal insulation between the inside of a building and the outside environment is provided by a multiple-glazed window comprising two transparent glass sheets, an exterior sheet and an interior sheet, spaced from each other and joined about their edges to form a sealed, enclosed space between them as the exterior sheet is a heat-absorbing glass having an infrared reflecting, transparent film of tin oxide disposed on its surface which faces the interior glass sheet in the window.
Claims8
A multiple-glazed window mounted in a building wall comprising a pair of glass sheets, an exterior sheet of colored, heat-absorbing glass facing the outside environment and an interior sheet, disposed in substantially parallel, spaced relation to each other, a heat reflective, transparent tin oxide-containing coating disposed over substantially all of the inside face of the exterior sheet of glass which faces the interior sheet of glass, a spacer disposed about the inside marginal edges of the pair of sheets to maintain them in spaced relation with a dessicant disposed in the spacer, and a frame about the outside marginal edges of the pair of sheets wherein the margins of the sheets and the spacer are bonded together forming a hermetically sealed space between the sheets of glass.
Dependencies are inferred from the claim text.