Flexible or portable closure – partition – or panel – Plural strip – slat – or panel type
Patent
1978-11-22
1980-12-02
Caun, Peter M.
Flexible or portable closure, partition, or panel
Plural strip, slat, or panel type
E06B 348, E06B 900
Patent
active
042365660
ABSTRACT:
An external venetian blind is disclosed having a plurality of slats (10) which in the closed position overlap each other and at least two flexible lifting elements (14) extend through openings (20) in the slats (10). One edge (12) of each slat is offset along a bend line (15) to help in guiding the slats during opening and closing of the blind. In one embodiment shown in FIG. 1 the offset edge portion (12) lies substantially parallel to the lifting elements (14) while in the preferred embodiment of FIG. 3 the offset edge (12) lies at an angle of up to 10.degree. with respect to the lifting elements (14). This angle is preferably 3.degree. to 6.degree. with 5.degree. being the most preferred. The lower edge (17) of the slats (10) is rolled inwardly and has secured thereto a resilient sealing strip (18) to bear against the next lower slat in the closed position to insure quietness of operation and the secure elimination of light penetration through the blind. The openings (20) are in part in the main portion (11) of the blind and in part in the offset edge portion (12). Edges (16, 21) of the openings are curved to avoid abrasion of the lifting elements (14).
REFERENCES:
patent: 3053318 (1962-09-01), Artman
patent: 3324929 (1967-05-01), Griesser
Caun Peter M.
Hunter Douglas International N.V.
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