Venetian blind having lift cord stopper

Details Venetian blind having lift cord stopper Venetian blind having lift cord stopper

2005-10-11

2005-10-11

Purol, David (Department: 3634)

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

Venetian blind type

Reexamination Certificate

active

06953075

ABSTRACT:
A Venetian blind is constructed to include a headrail, a bottom rail, a plurality of slats, a blind supporting system suspendedly and spacedly supporting the slats horizontally between the headrail and the bottom rail, two lift cords each having a first end fastened to the bottom rail and a second end extending upwardly through the slats into the headrail and then downwardly through a gate of a lift lock mounted in the headrail and terminating in an operation segment suspended below the headrail at a distance, and a knot constructed in each lift cord and having a dimension greater than the gate of the lift lock. Therefore, the knot limits the moving distance of the respective lift cord relative to the lift lock and, prevents a sudden dropping of the bottom rail upon failure of the lift lock.

REFERENCES:
patent: 3777800 (1973-12-01), Susoev
patent: 4739815 (1988-04-01), Altman
patent: 6453974 (2002-09-01), Lai et al.
patent: 6571854 (2003-06-01), Palmer et al.

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