Energy efficient window and skylight assemblies
Patent 4577619 Issued on March 25, 1986. Estimated Expiration Date: 
September 8, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 8, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInventorApplicationNo. 06/531172 filed on 09/08/1983US Classes:126/629, With device to circulate air from room of building through collector126/633, With fluent medium passage in floor or wall of room126/647, Blower126/702, Interconnected slats (e.g., blinds, shutters)160/107, Plural strip, slat, or panel type160/172R, With side guides52/200CUPOLA OR SKYLIGHTExaminersPrimary: Jones, LarryAttorney, Agent or FirmInternational ClassesE06B 9/26 (20060101)E06B 7/10 (20060101) E06B 9/264 (20060101) E06B 7/02 (20060101) F24J 2/04 (20060101) AbstractEnergy efficient window and skylight assemblies having self-contained ventilating systems. Two sheets of a transparent or translucent material are spaced apart in parallel relationship so as to form an air flow channel between the sheets. An adjustable shade is positioned in the air flow channel to regulate the amount of sunlight passing through the window and skylight assemblies. A fan in the top or bottom of the assembly causes air to be drawn into the assembly and passed through the air flow channel where it absorbs heat from the shade and sides of the assembly. This air is then directed into the building to provide heat or is vented to the outside to decrease the heat gain in the building.Other References
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