Layered synthetic material sealed with a foil having apertures a

Details Layered synthetic material sealed with a foil having apertures a Layered synthetic material sealed with a foil having apertures a

1991-09-25

1993-03-16

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

428 77, 428 78, 428136, 428137, 428457, 428285, 428 34, 428178, 428188, 428192, 428193, 428122, 428127, 428128, 5220452, 362336, 362356, 362367, E06B 324, B32B 300

Patent

active

051943140

ABSTRACT:
Method for the sealing of the openings in the end surfaces of a sheet-shaped synthetic material that consists of two or more outer plates which are mainly flat and which are mounted on partitions. The partitions are spaced roughly even distance from one another and run along the total length of the material. Over every end opening a dust-proof, water-vapor permeable and ventilating non-woven first foil, e.g., of polyester fabric, is put, and on top of or under that one or more strips of a second foil, e.g. of aluminum, are put, of which the edges are beaten around and secured to the outer plates. This is done in such a way that every end opening discharges, at least partially, through a part of the first foil which is not covered by the second foil. The invention also comprises the foil material to be used, preferably consisting of two strips of foils as described, fixed against each other, before being put over the openings. An intended use is as a transparent covering for light streets.

REFERENCES:
patent: 2905072 (1959-09-01), Oswald
patent: 4303969 (1981-12-01), Hamilton et al.
patent: 4544993 (1985-10-01), Kirk
patent: 4656803 (1987-04-01), Chludil

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