Flexible or portable closure – partition – or panel – Plural strip – slat – or panel type – Venetian blind type
Reexamination Certificate
2006-08-29
2006-08-29
Johnson, Blair M. (Department: 3634)
Flexible or portable closure, partition, or panel
Plural strip, slat, or panel type
Venetian blind type
C160S084040
Reexamination Certificate
active
07096917
ABSTRACT:
A window covering including a head rail, a bottom rail, a window covering material extending between the head rail and bottom rail, a first and second lift cords extending between the head rail and the bottom rail, a spring motor configured to bias the bottom rail toward the head rail, mounted in the bottom rail, and operatively coupled to the first and second lift cords, and a brake mounted in the bottom rail and configured to releasably couple to the first lift cord to prohibit the spring motor from taking up the first cord, prohibiting the bottom rail from being raised or lowered.
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F.A. Votta, The Theory and Design of Long-Deflection Constant-Force Spring Elements, Transactions of the Asme, May 1952, pp. 439-450.
Ciuca Zazu
Palmer Roger
Johnson Blair M.
Marshall & Gerstein & Borun LLP
Newell Window Furnishings Inc.
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