Window blind

Details Window blind Window blind

1999-02-12

1999-12-07

Johnson, Blair M.

Flexible or portable closure, partition, or panel

Pleating type

160170R, 2421251, 2425871, A47H 502

Patent

active

05996667&

ABSTRACT:
A window blind, which includes a track; a blind suspended from the track; a plurality of blind take-up mechanisms respectively mounted inside the track, each blind take-up mechanism including a spool holder securely mounted inside the track, a spool revolvably supported on the spool holder, at least one positioning element detachably fastened to the spool, and a lift cord having a top end fastened to one positioning element at the spool and a bottom end fastened to the blind for enabling the blind to be taken up/let off upon rotary motion of the spool; and a control unit securely mounted on the track at one end for operation by hand to rotate the spools of the blind take-up mechanisms through a transmission rod thereof, for enabling the blind to be lifted or lowered.

REFERENCES:
patent: 2758644 (1956-08-01), Virlouvet
patent: 5092382 (1992-03-01), Fluckiger

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