Method for manufacturing cells of a cellular window covering
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United States of America Patent
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Nov 16, 2004
Grant Date -
Oct 9, 2003
app pub date -
Oct 3, 2002
filing date -
Apr 3, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A cell and method of manufacturing a cell for a multi-cell window covering is disclosed. The method includes the steps of providing a flexible material, stiffening a portion of the flexible material, and creating at least one control engagement formation and at least one control clearance formation in axially extending sections of the stiffened flexible material that will become an upper portion and a lower portion of the cell. The method is further defined by folding the flexible material to create a closed element and securing the flexible material to itself to maintain the shape of the closed element.
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