Thermally protective drapery construction for windows, sliding glass doors, glass wall panels and the like
A thermal draper construction is described, comprising: (a) a retaining rod for locating drapery material adjacent to a wall surface; (b) an inner panel of heat shielding fabric and an outer panel of drapery material spaced apart from each other; (c) carrier members having opposing fasteners on their opposite sides and having a depth of at least 0.25 inch, the carrier members being interconnected by cords and mounted on the rod in sliding contact slidably supporting the panels in reversely folded relationship below the rod; (d) fasteners secured in spaced apart relationship along the upper edge of each panel for fastening each panel to the carrier members, the fasteners along the upper edge of one panel being spaced a predetermined equal distance and the fasteners along the upper edge of the other panel being spaced alternating distances longer and shorter than the equal distance to compensate for different arcuate lengths of folds of the panels and thereby maintain a distance between panels at least 0.25 inch providing an airspace between panels for insulation; and (e) separator means the same thickness as the airspace, located between the inner and outer panels, for maintaining the critical airspace at lower portions of the two panels.
- Assignee:
- NOV; EDB-87-139717; NOV-87-071058
- Patent Number(s):
- US 4679609
- OSTI ID:
- 6342734
- Country of Publication:
- United States
- Language:
- English
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