A collapsible cellular insulation panel for use with mobile shelters is provided. The panel comprises first and second outer sheets with a plurality of intermediate thin flexible membranes. The membranes are secured along first and second edges to inner surfaces of the outer sheets. The membranes ar
A collapsible cellular insulation panel for use with mobile shelters is provided. The panel comprises first and second outer sheets with a plurality of intermediate thin flexible membranes. The membranes are secured along first and second edges to inner surfaces of the outer sheets. The membranes are attached to adjacent membranes along strips that are parallel to and intermediate the first and second membrane edges. The interconnected membranes form cells that trap insulating air and break up convective currents between the outer sheets. Supported from underneath on a horizontal surface, the membranes lay substantially flat, such that a thickness of the panel substantially equals the sum of the thicknesses of the membranes and outer sheets. The panel is thus well adapted for use with mobile shelters, because it occupies little volume in the collapsed state. A shear stress on the insulation sheet in a direction perpendicular to the first and second membrane edges opens the cells and increases a distance between the outer sheets. The insulation sheet similarly opens when suspended from above in a substantially horizontal configuration.
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What is claimed is: 1. A collapsible cellular insulation panel for mobile shelters (i) having excellent insulation performance without the need to maintain an inflation pressure, (ii) that is light weight, and (iii) that is easily collapsed from an open configuration to a very thin collapsed config
What is claimed is: 1. A collapsible cellular insulation panel for mobile shelters (i) having excellent insulation performance without the need to maintain an inflation pressure, (ii) that is light weight, and (iii) that is easily collapsed from an open configuration to a very thin collapsed configuration for easy transportation and storage, comprising: a first sheet forming one side of the panel; a second sheet forming an opposite side of the panel; a plurality of hollow cells located between the first and second sheets, the cells being open to ambient air pressure so as to not require inflation, the air having relatively low thermal conductivity, the cells being formed by a plurality of membranes attached at opposite ends thereof to internal faces of the first and second sheets, and having one or more intermediate portions attached to at least one other adjacent membrane, the membrane ends attached to the first sheet being longitudinally spaced from the opposite membrane ends attached to the second sheet, such that each successive membrane partially overlaps an adjacent membrane; the panel having an open and a collapsed configuration determined by the relative forces applied to the first and second sheets, such that in the open configuration, the cells are filled with air, and in the collapsed configuration, each of the overlapping membranes lie generally parallel to the first and second sheets to occupy a minimal space between the first and second sheets. 2. A collapsible cellular insulation panel (i) having excellent insulation performance, (ii) that is light weight and (iii) collapsible for easy transportation and storage, comprising: a first sheet forming one side of the panel; a second sheet forming an opposite side of the panel; a plurality of hollow cells located between the first and second sheets, the cells being formed by a plurality of intermittently spaced membranes attached at their opposite ends to internal faces of the first and second sheets, at least some of the membranes having one or more portions attached to at least one other adjacent membrane, the membrane ends attached to the first sheet being longitudinally spaced from the opposite membrane ends attached to the second sheet, such that each successive membrane partially overlaps an adjacent membrane; the panel having an open and a collapsed configuration determined by the relative forces applied to the first and second sheets; wherein in the open configuration, the cells are filled with air, and in the collapsed configuration each of the overlapping membranes are generally parallel to the first and second sheets to occupy a minimal space between the first and second sheets. 3. A cellular insulation panel comprising: a first outer sheet; a second outer sheet; and a plurality of flexible membrane sheets sandwiched between the first outer sheet and second outer sheet, substantially all of the flexible membrane sheets being secured along a first edge to an inner surface of the first outer sheet and being secured along a second edge opposite the first edge to an inner surface of the second outer sheet, first and second surfaces of the flexible membrane sheets being secured along strips thereof to surfaces of adjacent flexible membrane sheets, the strips being substantially parallel to the first and second edges of the flexible membrane sheets. 4. The insulation panel of claim 3, wherein the membrane sheets define cells. 5. The insulation panel of claim 4, wherein the cells are substantially hexagonal when viewed along an axis that is parallel to the first and second edges of the flexible membrane sheets. 6. The insulation panel of claim 4, wherein the cells are not sealed at ends thereof. 7. The insulation panel of claim 3, wherein the outer sheets are constructed of vinyl-coated fiberglass fabric. 8. The insulation panel of claim 7, wherein the outer sheets each have a thickness between about 0.002 inches and 0.006 inches. 9. The insulation panel of claim 3, wherein the membrane sheets are constructed of metalized polyester film. 10. The insulation panel of claim 9, wherein the membrane sheets each have a thickness between about 0.0003 inches and 0.0007 inches. 11. The insulation panel of claim 3, wherein a width of each membrane sheet strip that is secured to an adjacent membrane sheet is less than a distance between adjacent strips on the same membrane sheet. 12. The insulation panel of claim 3, wherein when the panel rests on a horizontal surface, the panel tends to occupy a collapsed configuration in which all membrane sheets substantially occupy planes parallel to the first outer sheet and the second outer sheet, and when a shear force is applied in the planes of the first outer sheet and the second outer sheet, the panel tends to move toward a deployed configuration in which a perpendicular distance between the first outer sheet and the second outer sheet increases. 13. A method of constructing a cellular insulation panel, the method comprising the steps of: providing a first outer sheet; providing a second outer sheet; providing a plurality of flexible membrane sheets; securing a first edge of at least one of the flexible membrane sheets to an inner surface of the first outer sheet; securing a second edge of the at least one of the flexible membrane sheets to an inner surface of the second outer sheet; and securing strips of first and second opposing surfaces of the at least one of the flexible membrane sheets to adjacent flexible membrane sheets, the strips being substantially parallel to the first edge and second edge. 14. The method of claim 13, wherein each of the outer sheets and the flexible membrane sheets is substantially flat. 15. The method of claim 13, wherein the strips are secured to the adjacent flexible membrane sheets using adhesive strips.
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이 특허에 인용된 특허 (5)
Griffith Brent T. (Berkeley CA) Arasteh Dariush K. (Oakland CA) Selkowitz Stephen E. (Piedmont CA), Gas filled panel insulation.
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