Matches 1 - 28 out of 28
Match Document Document Title
EP1918504A1 Combination structure of spring power assembly and head rail  
A combination structure of a spring power assembly (100) and a head rail (500) is provided. A revolving shaft of a power spring (130) is made to be perpendicular to a major axis of the head rail...
7331370 Progressive resistance lifting mechanism for a window covering  
A lifting mechanism is provided for a window covering which allows a bottom rail of the window covering to maintain a static position unless raised or lowered by a user. The lifting mechanism is...
7287570 Window covering lifting system and method  
A window covering, a lifting system for a window covering and a release mechanism for a lifting mechanism are disclosed. The window covering includes a head rail, a bottom rail, a window covering,...
7168476 Cordless activating device for a venetian blind  
A cordless activating device for a venetian blind has a central reeling device, two string-guides and a main string. The central reeling device has a U-shaped mounting bracket, a resilient coiling...
7143802 Cordless blinds  
A window blind assembly includes a headrail having a longitudinal axis extending between first and second ends thereof, a first tube rotatably mounted between the first and second ends of the...
EP1696098A1 Roman blind without any pull rope  
A Roman blind without any pull rope includes an upper case, a blind cloth, and at least an elastic device. The upper case has a winding shaft in its interior for winding plural ropes attached on an...
7096917 One way brake for a cordless blind  
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...
7093644 Window covering with lifting mechanism  
A window covering, a lifting mechanism for a window covering and a locking device for a lifting mechanism are disclosed. The lifting mechanism includes main body, a pair of cord spools rotatably...
7025107 One-way tensioning mechanism for cordless blind  
A cordless blind comprising a headrail, a bottom rail suspended from the headrail by a first cord and a second cord. A window covering disposed between the headrail and the bottom rail, a drive...
6962187 Spools for horizontal blinds  
The present spools are shaped as flared cylinders. In one embodiment, the spools have a minimum circumference at a center, and maximum circumferences at outer portions thereof. In another...
6957683 Spring drive system and window cover  
A spring drive system useful for window covers is disclosed, which comprises one or more coil spring drives or flat spring drives and the combination whose elements are selected from one or more of...
6889741 Window covering height adjustment apparatus and method using multiple interconnected cord winding rotors  
Apparatus for raising and lowering a window shade, comprising first and second lines movable together to raise and lower the shade, a third line, which is a control line, and first, second and...
6865817 Window shade with measurement guide  
A system is provided for properly resizing a window shade to fit within a window frame adjacent a window. At least one ruler strip is provided with visible graduations thereon. Indicia are provided...
6854503 Semi-cordless unbalanced spring driven blind system and methods for adjusting and making same  
The invention includes an unbalanced horizontal blind with a spring means to provide a lifting or retraction force for the slats of the blinds. A brake means prevents undesired movement of the...
6837294 Pull down, push up, shade assembly  
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...
6823925 Retractable window shade with height adjustment control  
A height adjustment control is provided for a retractable window shade. The window shade includes a top beam and a bottom beam with the bottom beam suspended below the top beam by at least one...
6769471 Bottom rail weight and balancing system  
A system for adding weight to and/or balancing the bottom rail of a window covering includes one or more body members positioned within the bottom rail, and each body member having a plurality of...
6761203 Balanced window blind having a spring motor for concealed pull cords thereof  
A window blind includes a head rail, a bottom rail, and an expandable window covering. A pair of pull cords interconnect the head rail, the bottom rail and the expandable window covering. A spring...
6725897 Variable friction device for a cordless blind  
A window covering including a head rail, a bottom rail, and a window covering material located between the head rail and the bottom rail. The bottom rail being connected to the head rail by two...
6684930 Brake for a cordless blind  
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...
6675861 Brake for a cordless blind  
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...
6662850 Lift coard concealable venetian blind lift control mechanism  
A lift cord concealable Venetian blind lift control mechanism is constructed to include a base having two hollow screw rods axially aligned at two sides and selectively mounted in the top or bottom...
6648050 Spring drive system and window cover  
A spring drive system useful for window covers is disclosed, which comprises one or more coil spring drives or flat spring drives and the combination whose elements are selected from one or more of...
6644375 Cordless blind brake  
A window blind comprising a head rail, a bottom rail and a window covering extending between and operatively connected to the head rail and bottom rail. At least one lift cord extends between the...
6644373 Cordless blind  
A window covering system comprises a plurality of slats located between a head rail and a bottom rail. The bottom rail is connected to the head rail by a pair of lifting cords extending through the...
6601635 Cordless balanced window covering  
Disclosed is a spring motor and control for use especially with window blinds. The motor comprises a storage drum having a first axis, an output drum mounted for rotation about a second axis...
6508293 Spring motor assembly for a venetian blind without outside hanging lifting cords  
A spring motor assembly for a Venetian blind includes a bracket formed with confronting insert grooves, a pair of insert plates inserted into the insert grooves, two parallel axles extending...
6491084 Bottom rail weight and balancing system  
A system for adding weight to and/or balancing the bottom rail of a window covering includes one or more body members positioned within the bottom rail, and each body member having a plurality of...
Matches 1 - 28 out of 28