Patent ID: 7591297
Filing Date: 2009-09-22
Classification: E06B

Abstract:
1. A horizontal blind set comprising: an upper support; a ladder cord having a pair of vertical members and a series of horizontal step connectors, said ladder cord supported from said upper support; a plurality of louvers supported by said ladder cord; a lift cord supported from said upper support, for raising a bottom most one of said plurality of louvers upward to collect all said plurality of louvers in an upper position adjacent said upper support and closely adjacent each other; a selective lift cord extending from said upper support and through a selective lift aperture in each of said plurality of louvers through which it extends; and at least one interference member supported by said selective lift cord and positioned underneath a selective lift aperture of at least one of said plurality of louvers having an selective lift aperture such that a raising of said lift cord toward said upper support causes a raising of said louver having said interference member positioned immediately underneath it, toward a next most adjacent overlying louver not having said at least one interference member and away from a next most adjacent underlying louver not having said at least one interference member such that the lifting of the least one of said plurality of louvers having an selective lift aperture with said interference member positioned immediately underneath it creates an increased spacing between said least one of said plurality of louvers having an selective lift aperture with said interference member positioned immediately underneath it and the next most adjacent underlying louver not having said at least one interference member, said increased spacing ranging from more than a single louver spacing to a nearly double louver spacing without affecting the angular orientation of said plurality of said louvers.