Flexible or portable closure – partition – or panel – Plural and/or with rigid closure – Roll type
Patent
1998-02-09
2000-09-05
Purol, David M.
Flexible or portable closure, partition, or panel
Plural and/or with rigid closure
Roll type
160DIG7, E06B 908
Patent
active
061127973
ABSTRACT:
A fabric light control window covering in which fabric vanes are adhesively bonded between two sheer fabric sheets such that relative movement between the sheer fabric sheets in a direction perpendicular to the longitudinal direction of the fabric vanes changes the angle of the fabric vanes and, thus, controls the amount of light admitted through the shade. The vanes are bonded to the sheer fabric sheets in a manner which tends to bias the sheer fabric sheets together to the nonlight admitting position. Also, disclosed are methods and apparatus for manufacturing the above window covering. The method features linear application of adhesive to the vane material which provides for a uniform appearance in the finished product. A heat setting process and apparatus is disclosed in which the bonded layers of sheer fabrics and vanes are fed between belts over hot and cool surfaces, under uniform tension and pressure. This provides for heat setting of the layers of the window covering to a uniform temperature-size relationship without inducing wrinkles or distortion into the fabric during heat setting.
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Colson Wendell B.
Swiszcz Paul G.
Hunter Douglas Inc.
Purol David M.
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