Pleated blinds

Details Pleated blinds Pleated blinds

1997-06-30

1999-05-11

Purol, David M.

Flexible or portable closure, partition, or panel

Pleating type

With preformed pleats

A47H5/00

Patent

active

059017678

ABSTRACT:
A pleated blind 20 is disclosed including a head rail 22, a bottom rail 24 and an expandable and collapsible shade 28 extending between them and divided up into a plurality of pleats 30 by fold lines 32. A row of apertures 42 passes through each pleat 30 to permit passage of a supporting cord 10. The supporting cord 10 consists of a central yarn 12 and a series of equally spaced polymeric rungs 14. The rungs 14 are spaced at equal intervals along the cord 10, the spacing between the rungs 14 being substantially equal to the maximum distance between the head rail 22 and the bottom rail 24 divided by the number of pleats 30 in the shade 28. In this way, the rungs 14, which are of sufficient length to span the sides of the apertures 42, will support their respective pleats 30 and prevent the pleats from opening up too widely, thus ensuring that the pleat spacing remains substantially even.

REFERENCES:
patent: 1321800 (1919-11-01), Andress et al.
patent: 2320852 (1943-06-01), De Falco
patent: 4501311 (1985-02-01), Folland
patent: 4544011 (1985-10-01), Sawamura
patent: 4880044 (1989-11-01), Judkins
patent: 4884612 (1989-12-01), Schnebly et al.
patent: 4974656 (1990-12-01), Judkins
patent: 5184659 (1993-02-01), Alcocer
patent: 5273097 (1993-12-01), Siegler
patent: 5375642 (1994-12-01), Gaber et al.

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