Patent ID: 11891854
Assignee: HUNTER DOUGLAS INC.
Field: Other special machines (Mechanical engineering)
Classification: CPC B  E  D | IPC B  D  E

Claim 20:
21. A window covering having a height and a width, the window covering comprising a flexible panel for adjusting the amount of light that passes there through, the flexible panel comprising:
a flexible first vertical support sheer having a height and width, the height and width of the first vertical support sheer being substantially the same as the height and width of the panel, the first vertical support sheer formed of a plurality of crossing polymer-based yarns arranged to provide a structure having a plurality of openings to permit light to pass there through; and
a plurality of generally horizontal vanes having a length and having a width, the length of the vanes corresponding to and being substantially the same as the width of the first vertical support sheer, each of the plurality of flexible vanes operably coupled to the first vertical support sheer and moveable between a first position that permits light to pass through the flexible panel and a second position that blocks light from passing through the flexible panel;, wherein the first vertical support sheer:
has an openness factor in a range of about seventy percent (70%) to about eighty-five percent (85%),
is formed from a woven fabric having yarns in a machine-direction and yarns in a cross-direction orthogonal to the machine-direction yarns, the machine-direction yarns and the cross-direction yarns configured to form rectangular shaped openings, and
is configured so that a weight of the flexible panel is aligned with a longitudinal axis of and supported by either the cross-direction yarns or the machine-direction yarns.