Multiple tier venetian blind
AssigneeTribute Window Coverings Inc.
InventorTony Marzilli
Life of this patent
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Abstract
A multi-tier venetian blind is disclosed. The venetian blind includes first and second spaced apart ladders suspended from a header rail. The ladders support a number of slats which include an upper tier and a lower tier. The blind also includes lift cords and adjustment cords. The lift cords are connected to a bottom slat and are used lift and lower the slats. The adjustment cords are connected the ladders at a predetermined point and tilt the slats in the lower tier independently of those in the upper tier by moving the ladders at the predetermined point.
Claims21
A venetian blind comprising:
- a) a header rail;
- b) a first ladder and a spaced apart second ladder operatively suspended from the header rail;
- c) a plurality of slats supported by the first and second ladders, the plurality of slats comprising a first tier and a second tier below the first tier, the second tier comprising a bottom slat;
- d) a first lift cord adapted to raise and lower the plurality of slats, the first lift cord being connected to the bottom slat at one end thereof;
- and
- e) a first adjustment cord connected to a predetermined point on the first ladder, wherein the first adjustment cord is adapted to tilt the slats of the second tier independently of the slats of the first tier by moving the first ladder at the predetermined point.
The venetian blind of claim. 6, further comprising a first cord lock connected to the header rail and a second cord lock connected to the header rail, wherein the first cord lock is adapted to control the first lift cord and the second cord lock is adapted to control the first and second adjustment cords.
A cord lock for controlling a first cord and a second cord comprising:
- a) a housing defining at least one pathway therein, the pathway comprising a first portion, a second portion and a third portion;
- b) a retaining surface located in the housing;
- and
- c) a first member and a second member slidably received in the pathway;
- wherein the first member is movable between the first portion where the first cord moves freely and the second portion where the first member and the retaining surface cooperate to resist movement of the first cord;
- wherein the second member is movable between the first portion where the second cord moves freely and the third portion where the first second and the retaining surface cooperate to resist movement of the second cord.
Dependencies are inferred from the claim text.