Roll up roman shade
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United States of America Patent
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May 5, 1998
Issued Date -
N/A
app pub date -
Feb 13, 1997
filing date -
May 9, 1990
priority date (Note) -
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status (Latency Note)
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Abstract
An improved expandable and contractible window covering comprising a series of elongated cells is disclosed. Each cell is formed by joining a pleated sheet of material with an unpleated sheet in an area of creases on the pleated sheet. The rear wall of the cell is of less height than the front wall of the cell and the material of the cell is chosen to be relatively soft and flexible so that the front wall of each cell droops downwardly and outwardly away from the rear wall. The covering is mountable on a roll bar so as to be retracted by rolling about the roll bar and extended by unrolling from the roll bar.
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