Patent ID: 7637301

Claim:
A covering for a window, the covering comprising a roller, and a plurality of longitudinally-extending interconnected fabric cells, the cells being vertically spaced from each other and separated by an intervening vertically-extending spacing section, each of said cells and said spacing sections being formed from a strip of material having a first end with the strip extending straight upwardly from the first end to a first fold thereby defining a back wall of the cell between said first end and said first fold, said strip turning downwardly at said first fold to a second fold so as to define a front wall of the cell between said first and second folds, said strip extending rearwardly from said second fold toward and attached to said back wall to define a bottom wall with said front wall being spaced a greater distance from said back wall at said bottom wall than at said first fold, said spacing sections each comprising an extension of said bottom wall, and wherein the cells are adapted to collapse when wound onto the roller and expand when the covering is unwound from the roller.