Self-raising window covering

Flexible or portable closure – partition – or panel – Plural strip – slat – or panel type – Venetian blind type

Reexamination Certificate

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Details

C160S17300V

Reexamination Certificate

active

07624785

ABSTRACT:
The present invention relates to a self-raising window covering and a control mechanism for the window covering. In particular, the window covering includes a drive unit, such as constant force spring, that is adapted to apply a substantially constant rotational force on the drive axle. A cord winding assembly is coaxially mounted on the drive axle, and includes at least one winding drum operatively connected to a second end of the raising cord and having a tapered portion, as well as a rotatable positioning member for moving the cord winding assembly laterally along the drive axle upon rotation of the positioning member. The cord winding assembly is adapted to translate the rotational force on the drive axle to a raising force on the raising cord, wherein the raising force is greater than a downward force exerted by the shade element and bottom rail throughout the range of opening and closing. A clutch member or locking member is also operatively connected with the axle and adapted to releasably lock the drive axle in a desired position.

REFERENCES:
patent: 13251 (1855-07-01), Bixler
patent: 2266160 (1941-12-01), Burns
patent: 2276716 (1942-03-01), Cardona
patent: 2420301 (1947-05-01), Cusumano
patent: 2520629 (1950-08-01), Esposito
patent: 3487875 (1970-01-01), Shukat et al.
patent: 4498517 (1985-02-01), Mase
patent: 5054162 (1991-10-01), Rogers
patent: 5133399 (1992-07-01), Hiller et al.
patent: 5706876 (1998-01-01), Lysyj
patent: 6003584 (1999-12-01), Weinreich
patent: 6047759 (2000-04-01), Lysyj
patent: 6056036 (2000-05-01), Todd et al.
patent: 6129131 (2000-10-01), Colson
patent: 6155328 (2000-12-01), Welfonder
patent: 6223802 (2001-05-01), Colson
patent: 6234236 (2001-05-01), Kuhar
patent: 6289965 (2001-09-01), Ruggles
patent: 6325131 (2001-12-01), Dekker et al.
patent: 6435252 (2002-08-01), Colson et al.
patent: 6474394 (2002-11-01), Kuhar
patent: 6536503 (2003-03-01), Anderson et al.
patent: 6571853 (2003-06-01), Ciuca
patent: 6622769 (2003-09-01), Judkins
patent: 6662850 (2003-12-01), Chung et al.
patent: 6666252 (2003-12-01), Welfonder
patent: 6725897 (2004-04-01), Palmer
patent: 6752194 (2004-06-01), Huang
patent: 6789598 (2004-09-01), Nien
patent: 6854503 (2005-02-01), Cross et al.
patent: 6854505 (2005-02-01), Grubb et al.
patent: 7025107 (2006-04-01), Ciuca
patent: 7063122 (2006-06-01), Colson et al.
patent: 7137430 (2006-11-01), Fraczek
patent: 7168476 (2007-01-01), Chen
patent: 7185691 (2007-03-01), Toti
patent: 2004/0144501 (2004-07-01), Oskam et al.
patent: 2004/0154758 (2004-08-01), Cheng et al.
patent: 2004/0177933 (2004-09-01), Hillman
patent: 2004/0182526 (2004-09-01), Strand et al.
patent: 2005/0109471 (2005-05-01), Strand et al.
patent: 2006/0037720 (2006-02-01), Huang
patent: 2006/0151126 (2006-07-01), Lampe
patent: 2007/0012407 (2007-01-01), Nien
patent: 2007/0039696 (2007-02-01), Strand et al.
patent: 2009/0020239 (2009-01-01), Yu et al.

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