Patent ID: 7987890

Claim:
A blind comprising: i) a plurality of slats; ii) a support structure including a wall defining an aperture therein; iii) a cord ladder by which the slats are supported, the cord ladder comprising a pair of longitudinal cords and a plurality of slat-supporting lateral threads extending between the longitudinal cords; iv) a slider element disposed in the support structure, the slider element comprising: c) a base portion mounted in fixed relation to the aperture; and d) a single slider portion attached to the base portion, having opposed first and second ends and being operably slidably moveable with respect to the base portion between a middle position and any of a range of positions in opposed first and second directions, wherein the longitudinal cords of the ladder pass through the aperture in the support structure; the base portion and the slider portion include surfaces which are configured to define a void between the base portion and the slider portion, said slider portion further including a top wall and first and second side walls depending from the top wall and arranged substantially parallel to the path of movement of the slider portion as well as a dividing wall configured to divide the void into first and second chambers, and wherein one of the longitudinal ladder cords is routed from a hole in the base portion through the first chamber and the other of the longitudinal ladder cords is routed from a hole in the base portion through the second chamber, said void being defined by inner surfaces of said top wall and side walls; the base portion defining first and second through holes which are spaced apart, and each longitudinal ladder cord is routed through a respective through hole and through said void; and an upper end portion of one of the ladder cords is secured to the slider portion proximate the first end thereof and an upper end portion of the other of the ladder cords is secured to the slider portion proximate the second end thereof; whereby movement of said slider portion in the first direction tilts the slats in one direction and movement of the slider portion in the second direction tilts the slats in an opposite direction.