E - Fixed Constructions – 06 – B
Patent
E - Fixed Constructions
06
B
E06B 9/40 (2006.01)
Patent
CA 2744325
A blind with a looped blind sheet for adjusting opacity is revealed. The blind includes a top rod supporter, a top rod with two ends connected to the top rod supporter, a bottom rod supporter, a bottom rod with two ends connected to the bottom rod supporter, and looped blind sheet. The looped blind sheet with predetermined length and width includes alternate see-through parts and opaque parts and connected to form a loop having a front blind sheet and a rear blind sheet wound between the top rod and the bottom rod. When the front blind sheet or the rear blind sheet is pulled down or up, the opacity is adjusted by overlap degree of the see-through parts and the opaque parts of the front and the rear blind sheets changing without changing the length of the looped blind sheet.
Chu Chen-Ho
Gowling Lafleur Henderson Llp
LandOfFree
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