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"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 7926541 | Universal polygonal tilt drum for venetian type blinds A ladder drum for adjusting and regulating the angular orientation and closure of horizontal slats of a venetian blind, of the type incorporating ladder cords or tape ladders, having a polygonal profiled structure comprising a series of planar sidewalls defining a s... | 04/19/2011 |
| 7921897 | Universal polygonal tilt drum for venetian blinds A ladder drum for adjusting and regulating the angular orientation and closure of horizontal slats of a venetian blind, of the type incorporating ladder cords or tape ladders, having a polygonal profiled structure comprising a series of planar sidewalls defining a s... | 04/12/2011 |
| 7363955 | Venetian blind A Venetian blind (1) with at least two vertically expanding ladder members (3). Each ladder member (3) comprises at least one vertical member (4), which by means of a plurality of vertically spaced ladder rungs (5, 11) is connected... | 04/29/2008 |
| 7311133 | Lift and tilt station for a covering for an architectural opening A modular blind transport system for a window blind application. The complete system may be assembled form a relatively small number of individual modules to obtain working systems for a very wide range of applications, including especially a category of counterbala... | 12/25/2007 |
| 7308927 | Window blind system The present invention discloses a window blind system, comprising a shading arrangement and an alternating hanging device vertically extended downwardly to support a plurality of slats in position, wherein a predetermined portion of the slats are both supported by t... | 12/18/2007 |
| 7284736 | Mounting bracket A one-piece bracket for mounting the headrail of a covering for an architectural opening comprises a generally L-shaped piece having a system for retaining the headrail on the bracket and restricting movement of the headrail on the bracket. ... | 10/23/2007 |
| 7281564 | Tassel for a covering for an architectural opening A tassel for use in a covering for an architectural opening is provided with an opening in one end for receiving a flexible elongated member of the type used in operating such coverings and an opening of a different configuration in the opposite end for receiving a ... | 10/16/2007 |
| 7258297 | Reel assembly for a venetian blind A reel assembly includes a bracket and a reel pivotally received in the bracket. The bracket has a slanted face formed on a top face of the sidewall to be adjacent to the cutout for facilitating receiving of the extensions in the cutouts. A supporting arm is formed ... | 08/21/2007 |
| 7255150 | Venetian blind with a storage rail A venetian blind includes a headrail, a storage rail, a covering unit and a retainer. The storage rail has front and rear sidewalls, each of which is formed with a horizontal rib. The storage rail further has two ends and an upper end opening disposed between the tw... | 08/14/2007 |
| 7210646 | Cord seat assembly A cord seat assembly includes a seat, a spool rotatably supported by the seat, and a cord. The seat includes an end wall and a through-hole in a bottom thereof. The cord extends through the through-hole of the seat. The cord is wound around the spool and includes an... | 05/01/2007 |
| 7028739 | Roller mount on the upper beam of venetian blind A roller mount on the upper beam of a Venetian blind is made up of a bottom board, and a pair of opposite side boards wherein each side board thereof is provided with an arc opening through hole concaved at the upper edge thereof for a protruded fixing post of an ad... | 04/18/2006 |
| 7000670 | Blind and methods for operating thereof A blind which includes: a rectangular frame; windows fit on the front and rear surfaces of the frame; a slat part embedded in between the windows mounted on the front and rear surfaces of the frame; an upper movable part and drum parts mounted on a back headrail hal... | 02/21/2006 |
| 6976522 | Venetian blind ladder drum and method of assembling venetian blind A ladder drum for a venetian blind, a venetian blind assembly utilizing a ladder drum and a method of assembling a venetian blind. The ladder drum includes pairs of slots for securing ladder lace cords. Each pair of slots includes a first slot that retains but does ... | 12/20/2005 |
| 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 embodiment, the spools flare from a maximum diameter adjacent a first side wal... | 11/08/2005 |
| 6945302 | Window blind control structure A window blind control structure used in a window blind for controlling lifting and tilting of the blind slats is constructed to include a transmission mechanism mounted in a headrail of the window blind and coupled to blind slats of the window blind, a linking mech... | 09/20/2005 |
| 6845802 | Selective tilting arrangement for a blind system for coverings for architectural openings A tilter system for a window blind permits a portion of the blind to selectively tilt closed while the balance of the blind remains tilted open. Various arrangements are disclosed for achieving this effect. One includes a lag mechanism in a two-piece tape drum which... | 01/25/2005 |
| 6805186 | Window blind assembly having a detachable control system A control system for regulating light-shading status of a window blind assembly is disclosed to include a transmission mechanism and a driving device. The transmission mechanism includes a force receiving member having a receiving portion. The driving device has a f... | 10/19/2004 |
| 6761204 | Winding wheel An improved winding wheel includes an anchor dock housing a pulley and a movable base located on a lower side of the anchor dock having two biased holes. The pulley has a slant slot matching the biased holes to allow two ends of a cord to pass through in a separated... | 07/13/2004 |
| 6745812 | Hypocycloid drive device for adjusting slat angles for a venetian blind A hypocycloid drive device for adjusting slat angles of a venetian blind includes a housing, a roller, a hypocycloid drive reducer, a tilt cord and a tilt rod. The roller is rotatably mounted in the housing and is rotated by pulling the tilt cord. The hypocycloid dr... | 06/08/2004 |
| 6715528 | Actuation assembly for shutters inside double-glazing units An actuation assembly for double-glazing units with a frame with two glazed panes that form a hermetic air space accommodating shutters movable to be gathered or rolled-up, which comprises rotary motion speed varying elements, with a first rotor, with a magnet ring ... | 04/06/2004 |
| 6622770 | Tape drum for venetian type blinds A tape drum for venetian type blinds has a pair of spaced apart generally elliptical ends with each end having a hole sized and positioned to receive a tilt axle. A front wall and a rear wall extend between the spaced apart ends. A rib is attached to the ... | 09/23/2003 |
| 6601636 | Slat angle adjusting device for venetian blind A slat angle adjusting device has a body, a roller, a transmission device and a positioning bar. The roller is rotatably attached to the body for a cord being wound around the roller. The transmission device is received in the body and operationally conne... | 08/05/2003 |
| 6588481 | Fixing mount for an upper beam of venetian blind A fixing mount for use on an upper beam of a Venetian blind is made up of a fixing seat, an adjusting roller and a roller. The fixing seat has a base board and a pair of vertically raised parallel walls which are obliquely extended with respect to the axi... | 07/08/2003 |
| 6581666 | Operating device for window openers, screening arrangements and similar devices An operating device for window openers, screening arrangement and similar devices comprising an operating rod (6) with a hook-shaped operating elements (5) in its end and a rotatable coupling element (3) connected to said window opener or screening arrang... | 06/24/2003 |
| 6561254 | Slat angle adjusting device for a venetian blind A slat angle adjusting device for a Venetian blind has a body, a roller, a transmission device, a positioning bar and a positioning plate. The roller is rotatably attached to the body for a cord being wound around the roller. The transmission device is re... | 05/13/2003 |
| 6561253 | Tilt cord pulleys for venetian blinds A tilt pulley for Venetian blinds includes a tubular body and two flanges extend radially outward from two ends of the body. Each of the two flanges has a recess defined therein and two notches are defined in the body and respectively communicate with the... | 05/13/2003 |
| 6561252 | Cord-driven drum A drum is driven by cord ends, which are wrapped onto the drum. The drum sits in a housing with slotted openings which are opposite each other and in a plane which is substantially tangent to the surface of the drum. The cord ends exit the housing through... | 05/13/2003 |
| 6527034 | Slat-positioning drum for a venetian blind A slat-positioning drum is rotatably mounted in a positioning base fixedly mounted in a head rail of a venetian blind and includes a hollow upper section and a top plate. Two parallel channels are each longitudinally defined in the upper section of the bo... | 03/04/2003 |
| 6425432 | Cord tilter with an elevated start gear ratio A venetian blind cord tilter, mounted in a head rail, that interfaces and drives a tilt rod, with the tilter itself having a wheel gear (20) to which lines are wound for rotating the tilt rod and subsequently slats held within ladders for opening and clos... | 07/30/2002 |
| 6357508 | Double tilt mechanism for venetian blinds An apparatus for tilting upper and lower tiers of slats in a venetian blind independently comprises a headrail attached to a top end of the venetian blind. A first shaft is rotatably mounted in the headrail and is operative to tilt the upper tier of slats... | 03/19/2002 |
| 6325133 | Modulating mechanism of venetian blind A slat-modulating mechanism of the Venetian blind comprises a housing in which a worm gear is pivoted such that the worm gear is meshed with a worm shaft. The worm shaft is formed of a link member and an extension member which is fastened end to end with ... | 12/04/2001 |
| 6321820 | Slat positioning device for a venetian blind A Venetian blind slat positioning device has a U-shaped base and a positioning drum. The base has a circular recess formed in each end wall. The positioning drum is rotatably mounted in the base and has a cylinder and two sidewalls respectively extending ... | 11/27/2001 |
| 6308764 | Modulating mechanism of venetian blind A Venetian blind modulating mechanism comprises a housing, a worm gear pivoted in the housing, and a worm shaft engaged at one end with the worm gear such that other end of the worm shaft is jutted out of the housing. The worm shaft is formed of a link me... | 10/30/2001 |
| 6302182 | Control drum with adjustable friction The present invention provides a control drum, such as a tilt drum for a Venetian blind, with adjustable friction elements (such as spring legs), so that the friction between the control drum and the control shaft (e.g., tilt rod), can be greatly reduced ... | 10/16/2001 |
| 6298897 | Control wand for coverings for architectural openings A system for reversibly rotating a shaft for operation of the control system in a covering for an architectural opening includes two relatively linearly moveable members at least one of which has a low friction component engaging a helical path on the oth... | 10/09/2001 |
| 6279642 | Fixing device in a venetian blind A fixing device in a venetian blind integrally made of high molecular material comprises a cord engaging part, a band passing part, and a core. The cord engaging part is at one side of a base, having two engaging plates oppositely and crossly disposed and... | 08/28/2001 |
| 6176290 | Device for adjusting slats of venetian blind A device is designed to adjust slats of a Venetian blind and is formed of a seat fastened with one end of the upper rail of the Venetian blind. An upper worm rod and a lower worm rod are coaxially pivoted in seat such that the two worm rods are engaged wi... | 01/23/2001 |
| 6148894 | Headrail having reversible modular controls A headrail for a venetian type blind has reversible modular controls that can be easily switched from the right side of the blind to the left side of the blind or vice versa by the installer. The headrail has an elongated body having a base, a first sidew... | 11/21/2000 |
| 6044890 | Wand adapter for venetian blinds A wand (10) for operating the rotatable drive (93) of a venetian blind (90); rotatable drive (93) including a drive post (95) having a horizontal bore (97) therethrough or a drive hook (93). Wand (10) includes an elongate handle (20) having a longitudinal... | 04/04/2000 |
| 6032716 | Bottom stop mechanism for a window covering An inventive bottom stop mechanism uses one of the lift cords to operate. While the cord is unwinding from the shaft, the cord leaves the shaft along a line tangent to the shaft. As the last turn of cord is unwound from the shaft, and the point of attachm... | 03/07/2000 |
