Abstract: An impulse turbocharger for an internal combustion engine. The impulse turbocharger is adapted to be used for controlling the air flow of an air supply conduit on the intake side of an internal combustion engine. The impulse turbocharger has a rotary valve which is connected by an elastic coupling to a rotary actuator.

Abstract: A fuel conversion system having an exhaust gas generator, such as an engine or a furnace, having a heated exhaust gas outlet, a reactor vessel having a heated exhaust gas inlet in fluid communication with the heated exhaust gas outlet, having a cooled exhaust gas outlet, and containing at least one reactor tube having an exhaust gas inlet in fluid communication with the heated exhaust gas outlet, a convertible fuel inlet, and a converted fuel outlet, and a monolithic fuel conversion catalyst structure substantially centered within the at least one reactor tube and shaped to form at least one flow channel between the monolithic fuel conversion catalyst structure and an inside wall of the at least one reactor tube.

Abstract: The invention relates to an air-intake duct system (1) in which a throttle valve (40), an exhaust gas recirculating valve (29), a bypass valve (19), an exhaust gas cooler (11), against which exhaust gas flows via bypass valve (19), and, optionally, an air mass sensor are integrated. A complete intake unit for modern engines is hereby created, with which achieves a charging optimization and thus a reduction in fuel consumption as well as a reduction in pollutants by a corresponding thermal management in the engine by the exhaust gas cooler (11) that, together with a shell (3, 4) of the housing (2), is manufactured as a single piece. The individual add-on pieces (12, 19, 29, 40, 59) are optimally matched to one another and have, due to their designs, a low weight and a low finishing work requirement. This makes it possible to distinctly reduce assembly and manufacturing costs.

Abstract: An ignition system for an internal combustion engine includes a switch circuit connected to an ignition coil to switch on or off current supplied to the ignition coil, a control circuit for providing a control signal for controlling the switch circuit based on the ignition signal and a protection circuit including an input terminal that receives the ignition signal, an NPN transistor having a collector connected to the input terminal, an emitter connected to a ground, a base and the collector and a parasitic diode between the collector and the emitter of the NPN transistor, in which a prescribed capacitance is formed between the base and the collector of the NPN transistor. If an electric surge that has an ascending slope comes into the input terminal, the NPN transistor to turn on to discharge the electric surge to a ground. If an electric surge that has an descending slope comes into the input terminal, it passes through the parasitic diode toward the input terminal.

Abstract: A barbeque assembly including a support structure for a barbeque grill housing that may be easily and quickly assembled. Assembly of the support structure may be completed with few or no tools. The support structure includes first (62) and second support (64) members for supporting the grill housing (74) in a generally horizontal orientation, and a cross beam (66). A manually installable connector (200) is used to manually connect the cross beam (66) at a first end to the first support member (62) and to manually connect the cross beam (66) at a second end to the second support member (64). The first and second support members (62, 64) and connection member (66) preferably form a substantially rigid structure.

Abstract: An instrument for a solar energy system including a receiver and a heliostat to reflect solar energy on to the receiver. The instrument includes a first element adapted to form an image of the sun, a second element adapted to form an image of the receiver, and a detector. The detector is positioned to receive each of the images and a comparator is adapted to detect a distance between the images. The comparator generates an error correction signal based on the distance between the images. The error correction signal is received by a controller that controls the operation of a postioner that adjusts the position of the heliostat accordingly.

Abstract: As disclosed herein, the present invention relates to an improved respirator having a respirator mask, respirator bellows, respirator conduits, and mounting straps attached to the torso of an operator. The respirator mask is positioned over a patient's face so as to cover the nose and mouth. The respirator bellows are positioned under the arms of the operator and are attached to the mounting straps, which may be configured as a vest that can be worn by the operator. The respirator bellows communicate with the respirator mask via the respirator conduits. The operator can deliver air or oxygen to the respirator mask by pumping the respirator bellows with his or her arms. Advantageously, the pumping motion is actuated without the use of hands. The hands-free pumping action allows the operator to firmly secure the respirator mask in proper position on the patient's face with both hands.

Abstract: An adapter for disposition in a breathing system circuit between a source of breathable gas and a patient airway circuit, the adapter having: a tube with a side wall defining a breathing passage between a tube inlet and a tube outlet; an injector conduit extending laterally through the tube side wall having: a bore; a nozzle communicating between the bore and the passage; and an external port, where the port includes: syringe connector means for releasably sealing between the bore of the injector conduit and a syringe; and multiple dose inhaler connector means for releasably connecting the bore of the injector conduit and a multiple dose inhaler.

Abstract: There is described a medicament delivery device which comprises a medicament reservoir, a medicament delivery passage and a metering member adapted to transfer a measured dose of medicament from the medicament reservoir to the delivery passage characterized in that the device is provided with a moisture proof barrier. The medicament delivery device is especially suited for use as an inhaler. There is therefore also described an inhaler which provides improved airflow for the dispersion of medicament, and a method of treating patients suffering from a respiratory disorder.

Abstract: An arrangement and method is provided for controlling operational characteristics of medical equipment. A pressure sensor associated with the caregiver is arranged to sense changes in air pressure that correspond to breathing activity of the caregiver. The pressure sensor may comprise a neckband, headset, or the like. In the arrangement shown, a headset that is worn by the caregiver includes a disposable tube connected to a pressure transducer such that the pressure sensor senses changes in air pressure in the tube. An open end of the tube is positioned near the mouth of the caregiver to receive changes in airflow from the caregiver's mouth. The pressure sensor is in communication with a controller associated with the ventilator. The controller is arranged to control at least one operational parameter of the ventilator, such as the delivery of respiratory support to the patient or actuation of an oxygen flush valve on the ventilator, based upon the changes in air pressure sensed by the pressure sensor.

Abstract: An apparatus (1) for administering a gas to a person or an animal, is provided with a chamber (9) for receiving a quantity of gas to be administered. The chamber is provided with a gas line (3) for supplying gas from a source to the chamber (9) and elements for pressurizing the gas in the chamber. The chamber (9) is connected to a breathing tube (5) for supplying pressurized gas from the chamber (9) to the person or the animal, wherein the breathing tube (5) connects to a discharge channel (26), for discharging gas exhaled by the person or the animal, via a valve (11), which restricts the flow of exhaled gas from the breathing tube (5) to the discharge channel (26) in order to build up gas pressure in the breathing tube (5) during exhalation.

Abstract: A nose mask having either one of several types of mask parts with different functions selectively fitted to an installation shaft, usable without impairing the attractiveness of a nose, and formed so that, when the installation shaft is inserted from nostrils into nose vestibules a nasal septum is held so as to install the mask part. The mask part is engaged with the tips of the installation shaft by caps and stoppers, and cellulose sponges and filters are arranged alternately with each other. The mask parts can be classified into a plurality of groups according to functions, i.e those for underwater action without gas permeability and water permeability, those having fine-mesh filters formed of fiber material with gas permeability and excellent hygroscopicity and capable of filtering contaminated air, and those allowing liquid such as chemicals to be impregnated therein.

Abstract: A respiratory mask assembly for delivering breathable gas to a patient includes a mask frame having a first cooperating interlocking structure. A cushion clip having a second cooperating interlocking structure is selectively detachable to the mask frame. The first and second cooperating interlocking structures interlock with one another in a cooperating relationship to secure the cushion clip on the mask frame. A mask cushion has a portion positioned between the mask frame and the cushion clip so as to retain the mask cushion on the mask frame.

Abstract: A mask (10) for use with a system for supplying breathable gas pressurised above atmospheric pressure to a human or animal's airways. The mask (10) includes a mask shell (12) which is, in use, in fluid communication with a gas supply conduit (30), and a gas washout vent assembly (20). At least the region of the mask shell (12) or conduit (30) surrounding or adjacent the vent assembly is formed from a relatively flexible elastomeric material.

Abstract: A compression device for use in helping a woman breastfeed an infant. The device has opposed fingers which are movable towards and apart from each other. Just prior to nursing, compression device is placed over the breast centered on the nipple. The compression device compresses the breast tissue between the opposed fingers to form more of a V-shaped wedge for the mouth of the infant to latch onto. Once the infant has successfully latched onto the breast and nursing is initiated the fingers may be moved apart and compression device removed.

Abstract: An eyelash curler composed of a main body, having an upper body part; a lower body part having a curved forming space at a front section thereof, to allow eyelashes of the user to be positioned therein, the lower body part constituting a handle grip body with the upper body part; an immobilizing member provided at a front end of the lower body part and curved to correspond to curvature of an eyelash line shape; a forming member coupled to the immobilizing member and made of a metal sheet having the same curvature as that of the immobilizing member; and a pressing member disposed between the upper and lower body parts, which includes a pressing plate; a pressing part integrally connected to a front end of the pressing plate through a boundary part; and an elastically pressing part coupled to a front end of the pressing part.

Abstract: Disclosed is a tooth-cleaning paper combined with dental floss, in which the tooth-cleaning paper is formed of a thin paper or a gauze sterilized and wetted with an aqueous fluoride solution and has a plurality of edge cuts formed along an edge of the tooth-cleaning paper, and the dental floss is provided in a single strand or two strands along a margin of the tooth-cleaning paper to be fixed to the tooth-cleaning paper and has an exposed dental floss part formed by each of the plurality of edge cuts of the tooth-cleaning paper. The tooth-cleaning paper of the current invention is advantageous in terms of easily cleaning the teeth and interdental portions of users while not offending other persons at any time and in any place.

Abstract: A method for plasma cleaning a CVD reactor chamber including providing a plasma enhanced CVD reactor chamber comprising residual deposited material; performing a first plasma process comprising an oxygen containing plasma; performing a second plasma process comprising an argon containing plasma; and, performing a third plasma process comprising a fluorine containing plasma.

Abstract: A gas removal system that removes a halogen gas remaining inside a processing chamber after executing a specific type of processing inside the processing chamber maintained in an airtight state with plasma obtained through discharge dissociation of the halogen gas supplied from a gas supply device comprises a pressure control device that controls the pressure inside the processing chamber, an air supply device that supplies the atmospheric air into the processing chamber after the pressure inside the processing chamber is lowered by the pressure control device, a control device that controls the air supply device and an evacuation device that evacuates a gas produced through a reaction of the halogen gas and the atmospheric air having occurred inside the processing chamber.

Abstract: In a dishwasher having a washing chamber capable of accommodating upper and lower racks, a detergent dispensing assembly includes a housing defining a compartment for receiving detergent. A lid is pivotally connected to the housing for selectively pivoting between closed and dispensing positions. A shield, which is spaced away from the lid, extends in front of the lid to ensure that an object within the washing chamber does not prevent the lid from freely moving between the closed and dispensing positions during a wash cycle.

Abstract: A portable cleansing device (20) for cleaning small items, such as a pacifier (80), with pressurized liquid. The invention consists of a container (22) with a lid (46) that is removably attached to the container for maintaining liquid-tight integrity. A vertical partition (52) within the container forms a fresh liquid reservoir (56) for storing fresh water and a waste liquid repository (64) for storing waste water. A cleaning chamber (68) is formed having an inner wall (70) that is spaced from the container to create a void (72) therebetween that incorporates a number of nozzle openings (74). A liquid pump (78) is attached to the container and is in fluid communication with the void and with the fresh liquid reservoir. When the pump is manually energized, water is forced from the reservoir through the nozzles, thus spraying pressurized water onto the object positioned within the cleaning chamber, with the water accumulating and stored in the repository beneath the chamber.

Abstract: An umbrella frame includes an upper shaft part 2 and a lower shaft part 1, the two parts being connected by a tilting joint to enable the upper part to tilt with respect to the lower, a runner 4 sliding on the lower shaft part 1, for spreading a cover on the umbrella frame into its unfurled configuration when slid upwardly, and an actuator connected to the upper shaft part 2 and passing down the shaft, through or past the runner 4 when in its upper position with the umbrella open, to an operating location on the lower shaft part 1, the actuator being accessible at its lower end to allow an operator to tilt the upper shaft part 2.

Abstract: A two-tier canopy system is provided that includes a canopy support structure having a central post and a plurality of radially extending arms. A first canopy covering is supported by the radially extending arms and has a central opening, wherein the central post extends through the central opening. A second canopy covering, having at least a portion thereof disposed above the central opening, is supported by the central post, wherein the central post is biased towards the second canopy covering.

Abstract: A single layer fluid routing device comprising a first channel having a cross-section of a first aspect ratio and a first depth; a second channel having a second cross-section of a second different aspect ratio and a second different depth; wherein the second channel intersects with the first channel from a first point to a second point, the first and second points having different offsets relative to the cross-section of the first channel.

Abstract: Provided is a hydrostat for a portable gas range, which prevents the explosion of a gas container by automatically discharging overcompressed gas from the gas container when the inner pressure of the gas container increases to an explosion pressure. The hydrostat includes a body including a gas outlet, which communicates with a gas inlet of the governor valve, and a sealed room, which communicate with the gas outlet. An opening/closing unit is installed within the sealed room of the body such that it can elastically move up and down in order to discharge overcompressed gas by opening the gas outlet when the inner pressure of the gas container reaches or exceeds a threshold value of deformation. A cap is fixed at the bottom of the body so as to support the opening/closing unit and has a discharge hole for discharging overcompressed gas, which escapes the gas container through the gas outlet.

Abstract: A valve comprising a housing accommodating a first and a second outlet port, a first stage float member associated with the first outlet port and a second stage float member associated with the second outlet port. The float members are displaceable within the housing about parallel axes, between an open position and a closed position. The first stage float member at least partially overlaps over the second stage float member.

Abstract: The safety valve comprises a body and an obturator movable in the body between a closed position (FIG. 2) and an open position (FIG. 3). It also comprises means for displacing the obturator in order to displace it towards its closed position when the pressure of the fluid is lower than a threshold value, and the displacement means comprise: a piston for driving the obturator towards its open position, the piston being in contact with the pressurised fluid when the obturator is in the open position, and means for returning the obturator towards its closed position. Application, for example, to pneumatic machining machines.

Abstract: A pressure switch or valve for a hydraulic circuit that responds primarily to fluid flow as opposed to relying strictly on a pressure gradient across the valve. A T-shaped valve has a stem portion disposed within an opening in a reservoir or other fluid passage. The valve is spring biased in an open position. A valve head has an area significantly larger than an area of the opening. As fluid flows around the edge of the valve head, the fluid speed increases and induces a pressure gradient across the valve head to overcome the spring bias and close the valve. The valve may be employed in a wall surface of the reservoir or fluid passage having an area significantly larger than the valve head.

Abstract: The invention relates to a pressure valve with a flow passage (3) having a valve body (14) and a lifting plate (21) that has a surface area A2 transversally of the flow passage (3) that exceeds the cross sectional area A1 of the flow passage (3) at the valve seat (13) of the valve body, said pressure valve being configured such that, at any time, the container is in communication with the area above the lifting plate (21). The invention is characterised in that the pressure valve also comprises a magnet (8) and a magnetisable body (9); and that the force of attraction Fm between the magnet (8) and the magnetisable body (9) and the mass of the lifting plate (21) contributes to defining the abutment force Fc, of the valve body (14) against the valve seat (13) in the closed state of the pressure valve.

Abstract: In a switching valve containing a valve member for opening and closing a valve seat and a piston for driving the valve member by the action of a pilot fluid pressure inside a valve housing, a magnet for positional detection is attached to the piston, two sensor attachment grooves extending in the direction of the axial line L of the switching valve and having different groove lengths in accordance with the operational position are formed in parallel on the side face of the valve housing, and magnetic sensors are attached at locations on the side of the innermost end wall in the attachment grooves.

Abstract: A bypass air metering valve is provided with a stationary case flange having a plurality of slots, a bushing positioned within each of the slots, and a metering ring positioned so as to ride on a surface of each respective bushing. Each bushing creates a gap between the stationary case flange and the metering ring. Each bushing has an internal opening which is sized to create an open area flow for cooling or operating the nozzle and its attaching flap hardware. The metering ring covers and uncovers the internal opening of each bushing as required by the engine operating schedule.

Abstract: A multiway valve has valve housing and at least one pilot valve arranged in it. The principal valve housing possesses an integral principal housing part wherein at least the control section of a valve spool is arranged. The pilot valve possesses a head piece which is mounted on an assembly interface formed directly on the principal housing part. This assembly interface is furthermore provided with a pilot valve seat, which is an integral component of the principal housing part.

Abstract: The present invention provides an improved tubular structure which uses the properties of different materials, such as stiffness, strength, and density are exploited in a manner which combines the most attractive characteristics of existing metal and composite tubes into a metal/composite tube which contains performance characteristics (stiffness, strength or weight) not possible with pure metal or composite materials. For example, an improved tube is suitably created with a conventional metallic tube structure (e.g., steel, aluminum, titanium or the like). The original tube is modified with a secondary operation such as machining, punching, laser cutting or the like to remove various portions of the original tube wall, resulting in a tube with some pattern of “holes” or “cutaway” sections, thus resulting in a lighter tube. The tube is then suitably “fused” with composite material.

Abstract: A multi-axial seamed base fabric is provided that is formed from a spirally wound fabric strip having a width less than an overall width of the fabric that is joined together along neighboring adjacent edges of the strip to form a fabric tube. The fabric strip includes a plurality of generally linearly extending vertically stacked pairs of machine direction (MD) warp yarns interwoven with cross-machine direction (CMD) weft yarns in a repeat pattern which maintains the vertically stacked alignment of the paired MD warp yarns. The fabric tube includes an upper layer and a lower layer formed from the spirally wound fabric strip that are adjacent to one another in the base fabric.

Abstract: A through-air dryer (TAD) fabric formed by interweaving of a warp yarn system with a weft yarn system. The TAD fabric has a paper side with a contact area between 20% and 30%. The warp yarn system includes flat warp yarns and/or the weft yarn system includes flat weft yarns which have not been subjected to a sanding process after weaving of the fabric and which have an aspect ratio of 1.15:1 to 1.35:1.

Abstract: A multifunctional pliers tool to fit clamp-type products, with its unique characteristic to be possibly applied to several application fields, such as building construction and also medicine field, where it achieves aggregating at the same product one application function; a tensioning function; a cutting function and a finishing function, and to get that a multifunctional pliers product was developed and is composed by a right lever component; a left lever component; a tension regulator pin component; a fitting cylinder component; and an assembly pin component, being in particular its functional concept is understood by the segmentation in four steps: the first one named clamp application; the second step named clamp tensioning; the third step named clamp folding and the fourth step named clamp segment cutting with finishing of the obtained edges.

Abstract: This invention relates to a safety cut-off for any type of device for domestic use which is designed to produce pressurized vapor for different purposes. The invention also relates to a safety cut-off for any type of device for domestic use which is designed to produce pressurized steam for different purposes, such as to avoid the risk of accidents by scalding when filling with water, when pressurized steam exists in the steam chamber.

Abstract: A method of transporting containers from a first station to a second station within a container filling machine. Each container defines opposing first and second end sections, with the second end section forming a longitudinal recess defined by an inner surface of a sidewall. The method includes providing a carrier plate having at least one mounting piece. A container is loaded onto the mounting piece such that the second end section is positioned over the mounting piece and the mounting piece frictionally engages the interior surface of the longitudinal recess. The carrier plate is moved from the first station to the second station with the mounting piece securing the container relative to the carrier plate during movement of the carrier plate.

Abstract: A hermetic container and coupling system for transferring granular material from a first container to a second container, the latter being typically an applicator. The first container includes a neck and a base opposite to the former. The base includes through openings that cooperate with a cable passed therethrough for supporting the first container. A nozzle assembly includes an inlet removably connected to the neck and an outlet hat is selectively closed with a removable plug. A cover assembly is selectively and removably mounted to the first container covering the nozzle assembly. A flexible conduit is removably connected to the outlet, at one end, and the other end includes a regulating valve that is actuated from the outside. The other end is removably connected to the second container so that the transfer of the granular material can be accomplished without spillage and the contents are kept hermetically isolated from the outside.

Abstract: An apparatus for use with a router that is adapted to secure a guide bushing to a base of the router includes a modified retaining nut that includes a plurality of extensions that extend radially away from the nut. Each extension includes a threaded hole that is adapted to receive a set screw. The retaining nut includes interior screw threads that cooperate with outside screw threads of the guide bushing. The guide bushing is disposed on one side of a hole provided in the base of the router and the retaining nut is lightly tightened secure the guide bushing in a recess provided in the router base. The set screws are then tightened and bear against the router base sufficient to urge the retaining nut away from the guide bushing thereby placing the screw thread of both under tension, while simultaneously engaging with the router base sufficient to retain the retaining nut in position relative to the router base.

Abstract: A power tool, such as, for example a router. In some aspects, a router includes a base, a housing and a hand grip attachable to one of the base and the housing, and the hand grip may be contoured to fit a hand of an operator and may be at least partially formed of an elastomeric material. In some aspects, a router includes a housing and a hand grip connected to the housing. In some aspects, a router is operable above a workpiece and under a table. In some aspects, a router includes a base, a motor housing and an adjustment mechanism supported by at least one of the base and the motor housing for adjusting the position of the motor housing relative to the base. In some aspects, a case for a router includes a base plate operable to support a router with a bit attached to the router.

Abstract: A cutting machine includes: a base; a worktable provided on the base and having a working surface and a lateral side; a cutter provided on the worktable; and an elongate fence having first and second long edges and pivoted to the lateral side of the worktable so as to be rotatable relative to the worktable about an axis. The axis is spaced apart from the first and second long edges of the fence by first and second distances, respectively, and is spaced apart from the working surface of the worktable by a third distance. The first distance is greater than the third distance, while the second distance is not greater than the third distance.

Abstract: An improved tread pattern for a pneumatic tire includes four or five circumferential ribs including inner and outer shoulder ribs, each having a set of lateral grooves extending from their respective shoulders toward but not reaching an adjacent circumferential groove, the shoulder ribs also having multiple sipes arranged between adjacent pairs of lateral grooves. The width of at least one shoulder rib is between about 17% and about 19% of the width of the tread, while the land-sea surface area ratio defined by the tread is about 4–8% larger than the void volume ratio defined by the tread.

Abstract: A central tire inflation system for maintaining tire inflation on a vehicle having a torque transfer sleeve connected between an axle plug assembly and a stationary shaft on the rotary union assembly. A flexible conduit extends through the axle plug to the rotary union assembly and is used to provide air pressure to tires connected to the rotary union assembly. The torque transfer sleeve limits rotational torque on the flexible conduit. Primary and secondary seals are provided on the rotary union assembly as well. A vent chamber between the primary and secondary seals allows the release of air which exits the primary seal, which prevents pressure from entering the lubrication area of the rotary union assembly.

Abstract: The present invention relates to a two piece pneumatic tire comprising a carcass and a removable tread belt disposed radially about the periphery of the carcass, the tread belt and carcass meeting at an interface between a radially outermost surface of the carcass and a radially innermost surface of the tread belt, wherein at least one of the radially outermost surface of the carcass and the radially innermost surface of the tread belt comprise a self lubricating rubber composition, the self lubricating rubber composition comprising at least one rubber and from 1 to 50 phr of at least one additive selected from alcohols of formula I, esters of formula II, or amides of formula III wherein R1 and R2 are independently selected from C12–C36 alkyl, C12–C36 alkenyl, or C12–C36 alkadienyl.

Abstract: In an adhesive tape joining method for joining an adhesive tape to a surface of an article, cutting out the adhesive tape along an outer peripheral edge of the article and, then, collecting the unnecessary adhesive tape which has been cut out, the unnecessary adhesive tape is wound and collected so as not to shrink at a cut portion of the adhesive tape in a width direction.

Abstract: A dual use tape dispenser consisting of a base frame assembly and a cutting blade assembly pivotally connected to the base frame assembly. Integral with the base frame assembly is an array of pins positioned for holding different size reels of tape. Tape from reels of packaging tape is threaded in one and/or two ways so the tape dispenser can be used as a hand-held and/or a desk-top tape dispenser.

Abstract: A window awning mounting system suitable for a non-planar surface includes a housing containing a roll of awning. A forearm is provided and includes a header at one end thereof attached to a leading edge of the roll up awning. A bracket mounted on the non-planar surface is provided for securing and stabilizing one end of the forearm. A spring loaded tension arm having one end attached to the forearm is provided and an arm bracket, which is separate from the housing bracket, pivotally attaches both a second end of the forearm and a second end of the tension arm.

Abstract: A retractable barrier includes a rollup or otherwise retractable panel that can extend between two spaced apart support members. When not in use, the panel can retract onto one of the support members to permit passage. The barrier provides substantial impact resistance by having the reactive force of the impact transfer directly between the barrier's retractable panel and its support members without having to rely on the strength of the panel's take-up roller or the strength of the roller's anti-rotation mechanism. This can be accomplished by having a slot-engaging stop member mounted directly to the panel itself. The stop member is preferably a pipe, rod, bar or some other vertically elongate member that can broadly distribute an impact reactive force over the height of the panel. In some embodiments, the barrier can be set for various doorway widths by simply repositioning the stop member's location on the retractable panel.

Abstract: A novel roller blind structure includes a roller blind made up of a roller shaft, a side winder with a linkage member attached at both ends of the roller shaft respectively to be actuated by an operating member, and a pivoting post respectively protruding at the outer side of the side winder and the linkage member thereof to be mounted to an upper beam thereby wherein, when pulled by the operation member thereof, the side winders and the linkage member will actuate the roller shaft to rotate either clockwise or counterclockwise accordingly so as to control the rolling or unrolling operation of a blind body having an extension piece of a proper length preset at the lower section thereof to be wound backwards and led upwards to be levelly fixed to the inner wall of the upper beam thereof. A counterweight member is retained at the curving turn of the blind body thereof to neatly separate in space the extension piece thereof from a decoration piece disposed at the front section of the blind body thereon.