Enveloped blind assembly using independently actuated slats with

Details Enveloped blind assembly using independently actuated slats with Enveloped blind assembly using independently actuated slats with

1989-11-02

1991-01-15

Purol, David M.

Flexible or portable closure, partition, or panel

Pleating type

Lazy-tong links pivot about axes parallel to panel

160 89, 1601661, A47H 500

Patent

active

049846175

ABSTRACT:
A window covering (10) having the appearance of a pleated curtain of the expansible-collapsible type and containing therein, and discretely postured within at least one plane of cells, an array of slats (30) capable of arcuate movement by a cord ladder (18, 19, 22) apparatus. The preferred embodiment of the invention (10) uses a multicellular curtain of the pleated type (14), and especially one having a continuous web-like ligature connecting the internal acute vertices of the cells. A Venetian blind apparatus is interposed between the outside pleated faces of the cell network so that a blind slat (30) may be rotated from a rest position on one cell ligament (28) and into contact with an adjoining cell ligament (31). Through an array of reflectively coated or opacified slats (26) or ligaments (28), in combination with the rotatable Venetian blind slats (30), light diffusing through the curtain (14) is readily controlled.

REFERENCES:
patent: 2201356 (1940-05-01), Terrell
patent: 2914122 (1959-11-01), Pinto
patent: 2994370 (1961-08-01), Pinto
patent: 3946789 (1976-03-01), Ronkholz-Toelle
patent: 4019554 (1977-04-01), Rasmussen
patent: 4307768 (1981-12-01), Anderson
patent: 4347887 (1982-09-01), Brown
patent: 4535828 (1985-08-01), Brockhaus
patent: 4677012 (1987-06-01), Anderson
patent: 4708188 (1987-11-01), Bytheway
patent: 4723586 (1988-02-01), Spangenberg

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