Patent ID: 7509989
Filing Date: 2009-03-31
Classification: A47H,E06B

Abstract:
1. A window blind system for a window opening of a window frame comprising: a left triangular panel and a right triangular panel, each of said left triangular panel and right triangular panel having a plurality of sections bundled fixedly at one fixed end, and said left triangular panel and right triangular panel being located in said window frame in an inverted manner relative to one another with said fixed end therein of each panel being located adjacent to a diagonally opposite corner of said window frame, an outer left side section of said left triangular panel secured to a left side rim of said window frame, and an outer right side section of said right triangular panel secured to a right side rim of said window frame, a first opening formed at an upper edge portion of said outer left section of said left triangular panel, and additional first openings formed at upper edge portion of all sections of said left triangular panel, said first opening and additional first openings being located at a substantially equal distance from said fixed end of said left triangular panel, a second opening formed at a bottom edge portion of said outer right section of said right triangular panel, and additional second openings formed at bottom edge portion of all sections of said right triangular panel, said second opening and additional second openings being located at a substantially equal distance from said fixed end of said right triangular panel, an elongated first pull cord threaded through said first opening and said additional first openings of said left triangular panel with an abutment knot formed therein juxtaposed to an inner section of said left triangular panel, said first pull cord having a free end portion extending outside said window frame through a first exit opening formed in one of said left side rim and right side rim, an elongated second pull cord threaded through said second opening and said additional second openings of said right triangular panel with an abutment knot formed therein juxtaposed to an inner section of said right triangular panel, said second pull cord having a free end extending outside of said window frame through said first exit opening, an elongated third pull cord having one end secured to a top corner of said inner section of said left triangular panel, and having a free end portion therein extending outside said window frame through a second exit opening, and an elongated fourth pull cord having one end secured to a bottom corner of said inner section of said right triangular panel, and having a free end portion therein extending outside said window frame through said second exit opening.