Non-pull cord operated window blind structure

Details Non-pull cord operated window blind structure Non-pull cord operated window blind structure

2008-07-15

2008-07-15

Johnson, Blair M. (Department: 3634)

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

Venetian blind type

C160S084050

Reexamination Certificate

active

11344237

ABSTRACT:
A non-pull cord operated window blind structure comprises a head rail with a blind body attached to the underside and actuated by a collecting cord wherein a cord-winding control device actuated by an operating cord, and a fixed seat are respectively mounted at both ends of the head rail with a movable seat situated there-between. One end of the operating cord is attached to the movable seat, and both ends of the collecting cord are synchronically wound through the fixed seat and the movable seat and located at the fixed seat, permitting the operating cord and the collecting cord to associate with each other in linking operation. Therefore, a bottom rail is simply pushed or pulled by hands to loosen or tighten the collecting cord and actuate the operating cord therewith, permitting a state of counterbalance formed there-between for easy adjustment of the blind body into a desirable position thereby.

REFERENCES:
patent: 6305632 (2001-10-01), Hwang
patent: 7168476 (2007-01-01), Chen
patent: 2004/0154758 (2004-08-01), Cheng et al.
patent: 2007/0119547 (2007-05-01), Liang
patent: 2007/0151675 (2007-07-01), Nien et al.
patent: WO9209779 (1992-06-01), None

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