US Patent No: 6,129,131

Number of patents in Portfolio can not be more than 2000

Control system for coverings for architectural openings

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Importance

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Abstract

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A control system for a vertically moveable covering for an architectural opening includes a uni-directional drive assembly that is operated with a single pull element such that upon pulling of the pull element, the covering can be raised in increments. A clutch/brake assembly selectively prevents the covering from dropping by gravity between pulling strokes on the pulling element, but a release of the brake allows the shade to drop by gravity from its retracted position to any degree of extension. A governor is further provided to regulate the rate at which the covering drops by gravity. A cord lift system which is operated by the main drive assembly and the clutch/brake assembly includes a rotatable and axially slidable spool about which a lift cord can be wound. The lift cord has one end anchored to the spool and its opposite end extended through a supporting bracket for the spool and downwardly through the covering where the opposite end is anchored to a bottom rail such that a wrapping of the lift cord about the spool lifts the bottom rail thereby causing the covering to be raised adjacent to the lift spool. The lift cord is tangentially fed to the lift spool and forced into an angular wrap on the spool while an outer shell spaced a small distance from the spool prevents multiple wraps so that the lift cord does not become tangled. A return spring biases the spool in one direction to facilitate a controlled movement of the covering from a retracted to an extended position.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HUNTER DOUGLAS INC.UPPER SADDLE RIVER, NJ491

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Colson, Wendell B Weston, MA 247 2486

Cited Art Landscape

Patent Info (Count) # Cites Year
 
GENERAL CLUTCH CORP. (1)
4,372,432 Bi-directional clutch 81 1981
 
General Drapery Services, Inc. (1)
4,492,261 Shading system 16 1983
 
Kabushiki Kaisha Nichibei (1)
5,566,741 Roll screen apparatus 19 1994
 
NEWELL WINDOW FURNISHINGS, INC. (1)
5,890,529 Dual action retractable cord take-up reel 12 1997
 
Other [Check patent profile for assignment information] (1)
5,791,393 Shade operator 27 1997

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
HUNTER DOUGLAS INC. (21)
6,536,503 Modular transport system for coverings for architectural openings 21 2000
6,561,252 Cord-driven drum 8 2001
6,782,937 Framed covering for architectural opening 2 2001
6,968,884 Modular transport system for coverings for architectural openings 7 2002
6,957,680 Framed covering for architectural opening 1 2002
6,915,831 Drum for wrapping a cord 7 2003
7,128,126 Control system for architectural coverings with reversible drive and single operating element 8 2004
7,159,635 Lift cord spool for coverings for architectural openings 5 2004
7,311,133 Lift and tilt station for a covering for an architectural opening 6 2005
7,886,803 Drive for coverings for architectural openings 1 2006
7,578,334 Control system for architectural coverings with reversible drive and single operating element 12 2006
7,740,045 Spring motor and drag brake for drive for coverings for architectural openings 7 2007
7,802,608 Modular transport system for coverings for architectural openings 3 2007
8,186,413 Control system for architectural coverings with reversible drive and single operating element 2 2008
7,836,937 Single cord drive for coverings for architectural openings 8 2008
8,511,364 Spring motor for drive for coverings for architectural openings 0 2009
8,757,239 Roll-up retractable covering for architectural openings 0 2009
8,230,896 Modular transport system for coverings for architectural openings 3 2010
8,418,742 Single cord drive for coverings for architectural openings 0 2010
8,459,328 Covering for architectural openings with brakes in series 0 2011
8,752,607 Covering for architectural openings including a rotation limiter 0 2011
 
NEWELL WINDOW FURNISHINGS, INC. (4)
6,644,375 Cordless blind brake 17 2001
6,684,930 Brake for a cordless blind 10 2001
6,675,861 Brake for a cordless blind 19 2001
7,096,917 One way brake for a cordless blind 6 2002
 
PELLA CORPORATION (4)
6,736,185 Sliding operator for between the glass window coverings 16 2002
7,021,360 One-way drive for window coverings 10 2003
7,066,233 Sliding operator for between the glass window coverings 1 2004
7,174,941 One-way drive for window coverings 1 2005
 
SPRINGS WINDOW FASHIONS, LLC (3)
6,976,522 Venetian blind ladder drum and method of assembling venetian blind 3 2003
7,093,644 Window covering with lifting mechanism 3 2003
7,287,570 Window covering lifting system and method 8 2004
 
ROLLEASE, INC. (2)
7,137,430 Mono control lift and tilt mechanism for horizontal blinds 4 2003
8,025,089 Mechanism for untangling window cords 1 2006
 
RUSSELL L. HINCKLEY, SR., CO-TRUSTEE (2)
8,720,525 Methods for operating window covers 0 2013
8,708,024 Methods for operating window covers 0 2013
 
TEH YOR CO., LTD. (2)
7,624,785 Self-raising window covering 2 2007
8,356,653 Control module having a clutch for raising and lowering a window shade 0 2010
 
BAUMEISTER & OSTLER GMBH & CO. (1)
6,390,526 Easy-to-use safety net device 21 1999
 
NICHIBEI CO., LTD. (1)
7,665,507 Blind 5 2006
 
NIEN MADE ENTERPRISE CO., LTD. (1)
7,341,091 Control device for Venetian blinds and its control method 3 2004
 
TACHIKAWA CORPORATION (1)
7,654,300 Obstacle detection stopping device of solar radiation shielding apparatus 1 2004
 
Other [Check patent profile for assignment information] (4)
7,717,154 Window coverings 2 2007
8,281,846 Curtain 1 2008
8,191,605 One cord blind 3 2009
8,590,592 Roll blind having noiseless bidirectional clutch 0 2012