Static structures (e.g. – buildings) – Composite prefabricated panel including adjunctive means – Sandwich or hollow with sheet-like facing members
Patent
1995-09-21
1997-11-25
Friedman, Carl D.
Static structures (e.g., buildings)
Composite prefabricated panel including adjunctive means
Sandwich or hollow with sheet-like facing members
521713, 52306, 5274212, 428 34, E04C 254
Patent
active
056899300
DESCRIPTION:
BRIEF SUMMARY
The invention relates to heat reflective and/or absorbent material particularly for use in glazing panels and in particular in panels including a portion of substantially box section. Such a panel is typically used as a wall, usually a roof, of a conservatory or similar structure. The panel is typically made of a plastic having relatively low heat transmissive material, an example being polycarbonate or the like.
In my prior patent application 90.17787.4 published under no. 224704OA I have described and claimed an invention in which an extra layer is placed in a box section of the glazing pane. The extra layer comprises relatively reflective and/or absorbent material and takes the form of a film, mesh or perforated sheet optionally coated with e.g. metal. One needs to be skilful to apply the layer in the proper place. I have now discovered a better way of placing the required layer within the box section of a glazing panel.
My invention is based on the realisation that a length of suitable material can be folded to form at least one side portion and the general shape of tape. In use, the side portion can be moved to form a relatively rigid structure so that the tape can then readily be pushed into the box section from one end. In this way the inconveniences of applying a layer of film, mesh or sheet of material are avoided.
In one aspect the invention provides a length of heat reflective and/or absorbent material, the length including a longitudinal fold adjacent one of the longer sides to define a side portion and a web portion, the side portion being foldable along the longitudinal fold line relative to the web portion and arranged so that when the side portion is moved to lie generally orthogonally to the web a relatively rigid structure is formed.
The side portions may be disposed in line with the web portion (as seen in end elevation) or may be folded over or under the web portion. In such a case there are preferably two opposite side portions so that when both side portions lie generally parallel an article of generally U-shape is formed. The length may be reeled up into tape form. It may be advantageous to fold one side portion over the web portion and the other side portion underneath so that the side portions can be longer than half the width of the web.
In another embodiment there are preferably two opposite side portions extending in opposite directions from the plane of the major web portion whereby an article of generally Z-shape may be formed. This has the extra advantage that in use the web divides the box section into two parallel compartments which makes it possible to control the heat flow selectively.
In another aspect, the invention provides a glazing panel including a portion of box section, the box having walls of relatively transmissive material, an element in the form of a length of relatively reflective and/or absorbent material being present within the box, the element comprising a major web portion extending between a pair of opposed inner walls of the box, and having at least one side portion foldable along a longitudinal fold adjacent one of the longer sides, the side portion being arranged to lie generally orthogonally to the web to form a relatively rigid structure and the free end of the side portion being in contact with another inner wall of the box.
In one embodiment the major web portion of the element or tape is in contact with one inner wall of the box while extending between second and third inner walls and the free end of the side portion is in contact with the fourth inner wall. In this embodiment, most preferably the element has two opposite side portions which extend in generally parallel relation so that the element is of generally U-shape.
In a second embodiment, the major web portion of the tape extends between a first pair of opposed inner walls but is spaced from the second pair of opposed inner walls of the box. In this embodiment the major web portion is maintained in its spaced relationship to the second pair of inner walls by the at least one side portion
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Friedman Carl D.
McTigue Aimee E.
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