Liftable window covering with multiple lifting cords and a singl

Details Liftable window covering with multiple lifting cords and a singl Liftable window covering with multiple lifting cords and a singl

1997-12-03

1998-09-01

Purol, David M.

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

Venetian blind type

160 8404, E06B 930

Patent

active

057997152

ABSTRACT:
A liftable window closure, such as a Venetian blind or Roman shade, is lifted and held in place by two or more lifting cords, each of which is wrapped and unwrapped from a section of a spool. The spool is in turn rotated by a single pull cord, which is held in place by a brake mechanism. Each lifting cord is guided onto its spool section by a guide structure directing the cord to a central part of the spool section. A housing extends across the top of the liftable window covering, with the lifting cords extending within the housing and downward through the window covering. In a Venetian blind, a mechanism for tilting the slats extends above the lifting cords, which are held downward by the guide structure.

REFERENCES:
patent: 597046 (1898-01-01), Wilson
patent: 1808455 (1931-03-01), Duncanson
patent: 2029143 (1936-01-01), Wicks
patent: 2250106 (1941-07-01), Lorentzen
patent: 2420301 (1947-05-01), Cusumano
patent: 2687769 (1954-08-01), Gershuny
patent: 3645317 (1972-02-01), Malone
patent: 5316065 (1994-05-01), Alligood

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