Curtain

Details Curtain Curtain

2006-12-19

2006-12-19

Purol, David M. (Department: 3634)

Flexible or portable closure, partition, or panel

Pleating type

With preformed pleats

C160SDIG011

Reexamination Certificate

active

07150305

ABSTRACT:
A curtain including a fixing rod and a curtain body. The fixing rod is secured to an upper side of a window frame and includes a winding shaft located on an interior and an endless bead string movably wound on one end of the winding shaft. The curtain body is made of a plurality of flexible strings intertwined with one another to form a plurality string circles and pores of various sizes between the string circles. The upper end of the curtain body is fixed on the winding shaft so that the curtain body may be moved up and down by rotation of the winding shaft by pulling the bead string. The pores let the curtain body have a predetermined airiness and allow light to pass through.

REFERENCES:
patent: 2065402 (1936-12-01), Schweller
patent: 2577046 (1951-12-01), Svirsky
patent: 3615970 (1971-10-01), May
patent: 3696845 (1972-10-01), Acker et al.
patent: 4002188 (1977-01-01), Hanks
patent: 4377195 (1983-03-01), Weil
patent: 4587997 (1986-05-01), Brooks
patent: 4934435 (1990-06-01), Regev
patent: 6397920 (2002-06-01), Forin
patent: 6672361 (2004-01-01), Fransen

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