Child safe cord lock

Details Child safe cord lock Child safe cord lock

2007-08-28

2007-08-28

Johnson, Blair M. (Department: 3634)

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

Venetian blind type

C024S1340KB

Reexamination Certificate

active

10725971

ABSTRACT:
A cord lock for window coverings has one or more cams adjacent a surface over which a one or more lift cords travel. The cams are spring biased to a locked position in which they press the lift cords against the surface. A cam lock with a release cord is provided which engages and moves the cams from a locked position to an unlocked position in which the lift cords are free to move through the cord lock. The cord lock is always in a locked position whenever neither the lift cords are being pulled to raise the blind nor the release cord is being pulled to lower the blind.

REFERENCES:
patent: 580319 (1897-04-01), Jenison
patent: 1036232 (1912-08-01), Hedberg
patent: 1215985 (1917-02-01), Plate
patent: 2132991 (1938-10-01), Mintz
patent: 2731111 (1956-01-01), Lorentzen
patent: 3294153 (1966-12-01), Fountain
patent: 3727665 (1973-04-01), Debs
patent: 4413664 (1983-11-01), Istha
patent: 5275222 (1994-01-01), Jelic et al.
patent: 5472036 (1995-12-01), Judkins
patent: 6453974 (2002-09-01), Lai et al.

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