Patent ID: 7028737

Claim:
A blind assembly for day and night use comprising: a) an upper beam having: i) a first through hole; ii) a second through hole; iii) a first locating member connected to the upper beam above the first through hole; iv) a second locating member connected to the upper beam above the second through hole; and v) three upper beam cord holes located between the first through hole and the second through hole; b) a first blind connected to the upper beam at a top thereof and having a plurality of first slats, each of the plurality of first slats having three first blind cord holes; c) a middle beam connected to a bottom of the first blind and having three middle beam cord holes and two fixing holes; d) a second blind connected to the middle beam at a top thereof and having a plurality of second slats, each of the plurality of second slats having three second blind cord holes; e) a lower beam connected to a bottom of the second blind and having three lower beam cord holes; f) two first pull cords selectively adjusting the first blind to a predetermined position, one of the two first pull cords being inserted through the first through hole, each of two outer most holes of the three upper beam cord holes, each of two outer most holes of the three first blind cord holes, each of two outer most holes of the three middle beam cord holes and connected to each of the two fixing holes at an end thereof; and g) three second pull cords selectively adjusting the second blind to a predetermined position, one of the three second pull cords being inserted through the second through hole, each of the three upper beam cord holes, each of the three first blind cord holes, each of the three middle beam cord holes, each of the three second blind cord holes, each of the three lower beam cord holes, and connected to the lower beam at an end thereof, wherein one of the three upper beam cord holes aligning with each of the three first blind cord holes, the three middle beam cord holes, the three second blind cord holes, and the three lower beam cord holes.