Flexible or portable closure – partition – or panel – Pleating type – With preformed pleats
Reexamination Certificate
2005-01-04
2005-01-04
Purol, David (Department: 3634)
Flexible or portable closure, partition, or panel
Pleating type
With preformed pleats
C160S170000
Reexamination Certificate
active
06837294
ABSTRACT:
A pleated shade assembly capable of height adjustment without use of pull cords, comprising an upper elongated support; a lower elongated member that is manually adjustable up and down; primary lines extending through shade pleats to suspend the bottom elongated member; primary rotors at the top elongated support to entrain the primary lines; at least one secondary line having operative connection to the primary lines; and apparatus acting on the secondary line or lines for counterbalancing suspension force exerted on the primary lines at different shade height adjusted levels including dual rotary members exerting tensioning force on said secondary line or lines, and including a spring coupled to the dual rotary members exerting force tending to entrain the secondary line or lines about the dual rotary members, for storage on at least one of the members.
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Cheng Li-Ming
Wu Lawrence S.
Haefliger William W.
Purol David
Zipshade Industrial (B.V.I.) Corp.
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