Lift system for heavy venetian type blinds

Details Lift system for heavy venetian type blinds Lift system for heavy venetian type blinds

1998-08-04

2000-04-11

Johnson, Blair M.

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

Venetian blind type

160 8404, 160173R, E06B 930

Patent

active

060477601

ABSTRACT:
In a cording arrangement for large blinds having several lift cords one end of at least some of the lift cords is attached to the headrail and then the lift cord is routed into the bottomrail, over a pulley in the bottomrail, back up to the headrail and through a cord lock forming a generally U-shaped cording arrangement. The cords are attached to the headrail and routed through the headrail in such a manner that the cords are of equal or nearly equal length. Preferably the outermost cords are descending. The cords are laced around or through the rungs of the ladder. Preferably each descending cord has more passes through the rungs than each ascending cord.

REFERENCES:
patent: 2055826 (1936-09-01), Nottingham
patent: 2072835 (1937-03-01), Dodge
patent: 2087629 (1937-07-01), Krause
patent: 2200349 (1940-05-01), Walker
patent: 2307278 (1943-01-01), Krantz
patent: 2421505 (1947-06-01), Hunter
patent: 2482036 (1949-09-01), Stutz
patent: 2616496 (1952-11-01), Junkunc
patent: 2783831 (1957-03-01), Moyer
patent: 3327765 (1967-06-01), Strahm et al.
patent: 3460601 (1969-08-01), Abraham
patent: 5655590 (1997-08-01), Bryant

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