Venetian blind slat

Details Venetian blind slat Venetian blind slat

1995-01-12

1996-11-12

Johnson, Blair

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

Strip or slat structure

1601784, E06B 900

Patent

active

055730540

ABSTRACT:
An elongate venetian blind slat having a longitudinally extending transversely convex upper surface and an opposed longitudinally extending transversely concave lower surface and opposed longitudinally extending edge surfaces. The slat comprises a rigid thermoplastic resin having a cellular core and an integral solid skin along the longitudinally surfaces of the slats and a density of 0.4 to 0.6 g/cc. The upper and lower surfaces of the slat have a radius of curvature less than the width of the slat and, preferably, the upper and lower surfaces have substantially the same radius of curvature.

REFERENCES:
patent: 3676537 (1972-07-01), Winstead
patent: 3790436 (1974-02-01), Graham, Jr. et al.
patent: 4771005 (1987-12-01), Chang
patent: 4818590 (1989-04-01), Prince et al.
patent: 5121785 (1992-06-01), Ohsumi
patent: 5423367 (1995-06-01), Kataoka et al.

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