Abstract: A square skylight panel is vacuum-formed of light transmitting sheet plastic and has a lower peripheral flange which projects under roof shingles. The skylight panel covers a one-piece upper coupler member which is vacuum-formed of light transmitting sheet plastic and has an upper flange projecting under the skylight panel flange. A flexible and collapsible cylindrical tube has an upper end portion surrounding a lower wall portion of the upper coupler member and a lower end portion surrounding an upper wall portion of a similarly formed lower coupler member having a bottom flange received within a square frame attached to a ceiling and supporting a light diffusing ceiling panel. The skylight panel, upper and lower coupler members and ceiling panel define three dead air chambers providing for high thermal insulation, and the upper coupler member provides natural light into the attic between the roof and ceiling.

Abstract: An elongated open ended tube has a square or rectangular cross-section and light reflecting inner surfaces. The tube is formed with flat semi-rigid side walls flexibly connected at the corners for collapsing or folding the tube between a generally flat storage and shipping position and an expanded tubular position for installation. The tube extends within an attic of a building with its upper open end portion covered by a light transmitting skylight attached to the roof of the building and its lower open end portion covered by a light transmitting and diffusing panel or lens attached to a ceiling of the building.

Abstract: An elongated open ended tube has a square or rectangular cross-section and light reflecting inner surfaces. The tube is formed with flat semi-rigid side walls flexibly connected at the corners for collapsing or folding the tube between a generally flat storage and shipping position and an expanded tubular position for installation. The tube extends within an attic of a building with its upper open end portion covered by a light transmitting skylight attached to the roof of the building and its lower open end portion covered by a light transmitting and diffusing panel or lens attached to a ceiling of the building.

Abstract: A one-piece sheet of light transmitting plastics material or polycarbonate is vacuum-formed to produce a skylight glazing or pane, a surrounding curb portion and a surrounding flange or flashing portion projecting outwardly from the curb portion. In one embodiment, the curb portion has a peripheral rim surface and a lower step surface, and an upper pane of glass or plastic has a peripheral portion attached or sealed to the rim surface. In another embodiment, the curb portion is inclined and integrally connects the flashing portion to a top glazing panel. Additional panes of plastic sheets may be attached or sealed to the peripheral portion of the upper pane and/or to the step surface and/or the flashing portion to provide increased thermal insulation. Parallel ribs are formed in the flashing portion, and rigid or aluminum trim members form a decorative frame around the skylight pane and curb portion.

Abstract: A sheet of light transmitting polycarbonate is vacuum-formed to produce a lower skylight glazing or pane, a surrounding curb portion and a surrounding flange or flashing portion projecting outwardly from the curb portion. The curb portion has a peripheral rim surface and a lower step surface, and an upper pane of glass or plastic has a peripheral portion sealed to the rim surface. Additional panes of plastic sheets may be sealed to the peripheral portion of the upper pane and to the step surface to provide increased thermal insulation. Parallel ribs are formed in the flashing portion, and strips of rigid plastic insulation foam and wood trim are bonded by adhesive to each other and to the inner surfaces of the curb portion.

Abstract: A transparent mold system (TMS) allows rapid and economical production of thermoset fiber reinforced plastics (FRP) and other thermoset resin parts by heating with visible light energy without using an autoclave, photosensitive resins, or ultraviolet (U.V.) sensitive chemical curing agents. Molding times are accelerated to minutes instead of hours, and the molds are made of transparent plastics materials that can be economically produced by injection, casting, vacuum or pressure forming to replace metal molds and laid-up FRP molds.