Non-pull cord operable window blind structure

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

2006-06-09

2009-02-10

Johnson, Blair M. (Department: 3634)

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

Venetian blind type

C160S084040

Reexamination Certificate

active

07487817

ABSTRACT:
A non-pull cord operable window blind structure comprises lift cords assembled onto corresponding positions of a head rail, a bottom rail, and a blind body wherein a cord-winding control device with an operational cord attached thereto, and a fixed seat are mounted to both end sides of an accommodating channel of the head rail with a movable seat situated to slide there-between. The fixed and movable seats respectively have multiple guiding elements for the winding of the lift cords. An insert block attached at one end of the operational cord and an insert cavity defining one side of the movable seat are correspondingly engaged with each other, permitting the operational cord actuated by the sliding of the movable to move in linkage to the lift cords. Therefore, the bottom rail is simply pushed or pulled by hands to adjust the blind body into a desirable collected or expanded position thereby.

REFERENCES:
patent: 6508293 (2003-01-01), Huang
patent: 7093644 (2006-08-01), Strand
patent: 2007/0119547 (2007-05-01), Liang
patent: 2007/0125505 (2007-06-01), Liang
patent: WO 9209779 (1992-06-01), None

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