Abstract: A rain gutter cover for covering a gutter, includes a large space screen a curved upper leg portion extended from a roof shingle for engaging with an upper end of the large space screen, and a plurality of supports attached to the curved front leg portion and to a lower leg portion whereby the rain gutter can keep out leaves and other debris, and allow water to enter thereinto and fall down into the gutter effectively and accurately.

Abstract: The present invention is related to a tridimensional combined green building which is constituted with plant, biologic ecosystem, physical environment ecosystem, habitation environment and the combination thereof. Said tridimensional combined green-building may comprises green villages, green areas and green scientific town, such as tridimensional wall, tridimensional river and tridimensional bridge etc., and they can be divided into variety of green building.

Abstract: A collapsible structure has at least three foldable frame members, each having a folded and an unfolded orientation. The structure has a fabric material covering portions of each frame member to form a panel for each frame member, with each panel further including a left side, a bottom side and a right side, with the left side of each panel coupled to the right side of an adjacent panel, and the right side of each panel coupled to the left side of another adjacent pane. The bottom side of at least one panel is positioned at a higher vertical level than the bottom side of at least one other panel.

Abstract: A fabric covered structure such as for use as a gazebo or pavilion includes plural generally vertical support columns connected to roof beams which support a fabric roof. Opposed ends of the beams are each connected to one of the support columns and are each provided with a hook element for attachment to a cable or rope attached to the periphery of the fabric roof such as by being disposed in a peripheral hem of the fabric roof. Each roof beam is further provided with telescoping end portions to each of which is attached one of the hook elements for extending the end of the beam and maintaining the cable under tension and the fabric roof in a stretched condition.

Abstract: A base isolation device for a structure capable of efficiently and effectively suppressing the vibration of a structural body in surface outside direction, wherein a tension member having on overall length longer than an interval between support points provided on the structural body at a specified interval is disposed between the support points, one end parts of first link pieces are rotatably connected midway to the tension member directly or through rigid members, one end parts of second link pieces are rotatably connected to the structural body, the other end parts of the first link pieces are rotatably connected to the other end parts of the second link pieces, and an energizing member providing a tension to the tension member by energizing the first link piece and the second link piece and a damping member operated by the rotation of the first link piece and the second link piece are installed between the structural body forming the structure and connection parts between the first link pieces and the se

Abstract: A stairway can be constructed by using movable tread/riser supports placed along a stairway stringer and the supports can be moved as a group or individually to accommodate a stairway slope of any desired degree. It is desirable to mark a stringer for the uniform equal spacing of the location for the tread/risers and to establish the pivot positions for mounting the supports on the stringer. The present invention is an apparatus that will permit a user to locate the desired pivot holes equally spaced and aligned along a stringer.

Abstract: A window assembly for a public transportation vehicle that permits rapid removal and replacement is disclosed. The vehicle has a sidewall with a window opening. One or more frame members are attached within the window opening. The frame members are adapted to comprise one or more apertures. One or more retainers are adhesively attached to the inner surface and towards the outer periphery of a piece of glazing. The retainers have protrusions that can extend through the apertures in the frame members and engage therewith when the piece of glazing is positioned adjacent to the window opening. Removable fasteners can be attached to the protrusions so as to detachably secure the piece of glazing and the retainers to the frame members. This allows easy removal and replacement of the piece of glazing from the window opening of the sidewall of the vehicle.

Abstract: The present invention is a entryway protector for use with elevator door jamb panels to protect the surfaces of the panels from sustaining damage from collisions with moving equipment, building materials and furniture. The entryway protector includes the main sections and an angled guide and a minor section which is attached at approximately a right angle. The entryway protector is constructed of a material that is sufficiently rigid to protect the elevator door jamb panel and also to remain in proper position. The entryway protector may be attached to the elevator door jamb panel by suction cups. Preferably the entryway protector is made at a height of approximately forty inches so that two entryway protectors are need for each elevator door jamb panel. Two entryway protectors can be attached together by one or more H clamps.

Abstract: A substrate carrying a temporary protective cover and related methods of producing and processing substrates are described. In one embodiment, a substrate has a durable exterior surface bearing a temporary protective cover that protects the durable surface against contamination but that can readily be readily removed from the durable surface by washing with a given washing fluid.

Abstract: Disclosed is a moisture collection bridge and method for use in a curtain wall system. In one aspect, the moisture collection bridge is placed at an intersection of a vertical mullion and one or more horizontal members. The moisture collection bridge is formed to collect fluid in a recess and divert the fluid out of the curtain wall system through an outlet. This Abstract is provided to comply with rules requiring an Abstract that allows a searcher or other reader to quickly ascertain subject matter of the technical disclosure. This Abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

Abstract: A drainage system for use in concrete masonry unit (CMU) wall construction comprises a tray unit of a size corresponding to size of CMUs, to be received beneath a course of CMUs, in use. The tray unit comprises opposite side flanges to abut a superjacent CMU and supporting a pan therebelow. The pan may be angled from back to front and from side edges to a middle portion thereof to urge water toward a front middle portion of the tray.

Abstract: In order to obtain a plane lattice hollow concrete slab having a high workability and a high sound insulating property, and a cross arm brace used in the plane lattice hollow concrete slab, the plane lattice hollow concrete slab comprises a light weight body 5 buried in a small space 4 which is partitioned on a grid by upper reinforcing bars 3a and 3b and lower reinforcing bars 2a and 2b positioned on a grid in a slab. The light weight body is a solid-core or a hollow light weight ball body. The light weight body has a diameter which passes through a top surface of the small space and which does not pass through a side surface of the small space. The light weight body is fixed to a predetermined position by a cross arm brace which is positioned on the upper reinforcing bar.

Abstract: A wall fastener that attaches a wallboard member to a mounting track in a manner that allows for relative movement between an overhead roof structure to which the mounting track is secured and a non-load bearing wall. The wall fastener holds the wallboard in a fixed position relative to the wall and the overhead structure to maintain a fire barrier.

Abstract: A flat wall panel at least substantially made of cellulose material, a special feature being the fact that the wall panel is at least substantially made of layers of paper/cardboard, each layer at least substantially being made up of a corrugated sublayer and a flat sublayer provided on one side thereof, which layers of paper/cardboard are interconnected via an adhesive applied to the corrugations of the corrugated sublayers, wherein the wall panel is impregnated, in particular with a resinous material, and wherein at least one strengthening layer having a greater elasticity modulus than the layers of paper/cardboard is provided, which strengthening layer is connected to a layer of paper/cardboard on one side of the wall panel via an adhesive.

Abstract: A variable pitch corrugated support sheet with accompanying support beam consists in a bearing sheet having a corrugated pattern and by varying the angle, or pitch, of the corrugated pattern of the bearing sheet, its load carrying capacity can be altered. In order to maintain a given angle, a series of accompanying structural beams with specific angles are designed to receive the bearing sheet and give it its angle. With the structural beam imparting an angle to the corrugated pattern of the sheet, that given angle is maintained and a top layer can be applied to the corrugated support sheet such as concrete, foam, plywood or any other such covering suitable for the function of that structure whether a floor, a ceiling or a roof.

Abstract: Floorboards for mechanical joining of floors in a herringbone pattern and in parallel rows with horizontal connectors which on the short sides have cooperating locking surfaces which are designed differently from the cooperating locking surfaces on the long sides.

Abstract: A process for artificially ageing blocks, in particular concrete blocks, vitrified bricks and natural stones, provides that the blocks are applied to an underlying surface. Essentially freely movable distressing bodies are applied to the surface to be worked of the blocks. The blocks and the distressing bodies are brought into movement in relation to one another by a vibrating motion of the underlying surface in such a way that the distressing bodies act on the surface and the adjoining, exposed edges of the blocks.

Abstract: A frame and panel assembly comprises a frame (2, 4, 6, 8, 10) opposed inner extents of the frame (2, 4, 6, 8, 10) being recessed (16, 18) with the base portions (22) of opposed recesses (16, 18) being spaced apart a distance greater than the width of the panel (12), the free ends of the front portions (24) of opposed recesses (16, 18) being spaced apart by a distance less than the width of the panel (12), and a gasket (26, 28) within each recess (16, 18). One edge extent of a panel (12) can be located into the recess (18) against the resilience of the associated gasket (28), and the opposed edge extent of the panel (12) can then be manoeuvred into a second recess (16), the gaskets locating the panel (12) centrally within the frame to close the aperture and to urge the panel (12) towards the front portions (24) of the recesses (16, 18).

Abstract: This invention is related to a knock down frame attachment system. The knock down frame attachment system includes a seating portion, a pair of side panels and a plurality of sets of mounting brackets. A set includes both a left and a right mounting bracket. A set of brackets are coupled to each side of the seating portion and to both side panels. Thus, two sets of brackets are required to attach a side panel to the seating portion.

Abstract: A metal unitary structural member for structural support. The member includes a plurality of web portions extending radially from each other and extending with each other in an axial direction, and a plurality of outer portions extending in an axial direction with the web portions and between the web portions in cross-section. The plurality of outer portions defines an outer surface of the member. The web portions may extend from a substantially central portion. The plurality of web portions may include perforations.

Abstract: A multiple sensitivity stud sensing device for determining a location of objects behind a wall lining has a housing with a surface for moving over the wall lining. Within the housing are a capacitive sensor with first and second capacitances provided adjacent the surface and control circuitry. The control circuitry includes a detecting circuit connected to the sensor for providing a detection signal related to an imbalance between the first and second capacitances, a comparator having a reference signal for providing a comparator signal related to a difference between the detection signal and the reference signal, and a controller for receiving the comparator signal and providing a display signal. A display is provided on the housing for indicating a location of an object behind the wall lining. An input device is provided on the housing so that a user of the device can select a value for the reference signal.

Abstract: A column stabilising grid (1) is described for use in constructing stable columns of stacked objects, such as containers of paint. The grid (1) has a perimeter wall (2) bounding a number of locating cells (3) defined by walls (6) and (7) extending from a floor (4). Primary locating walls (6) are dimensioned to receive the base of a larger object and to resist lateral movement thereof. Secondary locating walls (7), each encompassed by a primary locating wall (6), are dimensioned to receive the base of a second, smaller object and to resist lateral movement thereof. The secondary locating walls (7) are eccentrically located within the primary locating walls (6). Stop means (10) and (11) depend from the underside of the grid (1). In use, a column is constructed by placing a grid (1) between adjacent layers of objects in a stack.

Abstract: Fire resistance can be rated for building structure by providing or having made available, and applying or noting application or presence of fire control agent(s) to or with component part(s) of the structure; providing a fire resistance rating format of a comparative structure; and comparing for a fire resistance classification rating (FRCR). Certification can be effected by providing a security code specific for one-time use in relation to a building structure by a user; entering an FRCR of a building structure rated for fire resistance at a first location and the security code to a communication medium; transmitting by the medium the entered rating and the security code from the first location to a second location; and checking the security code of the user to insure it is authorized and specific to that user; if so, recording the rating supplied by the user; if not, notifying an appropriate monitor.

Abstract: Disclosed is a curtain wall system used for building exteriors. The curtain wall system includes at least one vertical mullion and at least one horizontal sill member. Either the vertical mullion, the horizontal sill member, or both are formed to include a channel of increased depth to facilitate the receipt of a panel member therein. The panel member is secured with a bonding agent. The channel of the vertical and horizontal mullions may be oriented near at least one of a front edge and a back edge or substantially near a center of the vertical mullion and horizontal sill member. This Abstract is provided to comply with rules requiring an Abstract that allows a searcher or other reader to quickly ascertain subject matter of the technical disclosure. This Abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

Abstract: A composite wall panel having continuous upper and lower hollow horizontal chases and spaced hollow studs forming vertical chases throughout the panel to permit passage of electrical wiring and the like. The chases have protective barriers to protect the wiring from penetration and damage due to mechanical fasteners used to manufacture the panel and to construct load bearing walls using a plurality of manufactured panels. Further, the panel has a continuous header to provide structural rigidity and to permit rapid manufacturing of the panel without the need to frame openings, such as doors and windows, at the time of manufacture. Openings are cut in the panels and finished after the walls are constructed. Even further, the panel has horizontally extending brackets which laterally support the studs.

Abstract: A three dimensional composite panel structure is provided having a thickness less than about 22.5 cm, overall density less than 0.2 g/cm, and exhibiting a global modulus greater than 1.2 GPa and stiffness greater than 15 kN-m2. The composite panel structure includes at least two fiber-reinforced mats interconnected in a spaced substantially parallel configuration by a skeletal web and a closed cell foam filling the spaces between the panels. The fiber-reinforced mats include a plurality of fibers in a low viscosity cured thermosetting resin matrix.

Abstract: A light-transmitting glass panel having high thermal insulation performance with thermal conductance sufficiently reduced. The light-transmitting glass panel 1 is comprised of a pair of glass plates 11 and 12 that are hermetically joined together with one surface of each thereof facing one another, the joining being via a sealing frame 13 that is provided at an outer peripheral portion of the glass plates 11 and 12 and fluidizes at low temperature, and the glass plates 11 and 12 having a hollow layer 14 formed therebetween, and pillars 15 that are substantially cylindrical spacers that are inserted into the hollow layer 14 as atmospheric pressure supporting members and determine the gap between the glass plate 11 and the glass plate 12.

Abstract: Methods and apparatus for making reclosable packages having slider-actuated string zippers. More specifically, the apparatus is a form-fill-seal machine having means for placing product on a web of packaging film; means for forming a receptacle having an interior volume and a mouth, with the product in the interior volume and a string zipper installed in the mouth, the web of packaging film forming at least one wall of the receptacle; a slider insertion device for inserting sliders on the string zipper; and means for sealing the receptacle so that ambient air cannot enter the interior volume. The form-fill-seal machine may further include either means for aligning an edge of the web with a flangeless zipper strip of the zipper strip before the web is joined to the flangeless zipper strip or means for trimming an edge of the web after a portion of the web proximal to the edge has been joined to a flangeless zipper strip of the string zipper.

Abstract: A method of making a kit includes vacuum-sealing a plurality of components within an interior space of an air impermeable encasement. One of the components is a diaper and another component is a diaper accessory.

Abstract: A beverage bottling plant for filling bottles with a liquid beverage filling material and a method of operating a beverage bottling plant. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.

Abstract: A method of making a kit includes vacuum-sealing a plurality of components within respective compartments of an air impermeable encasement. One of the compartments includes therein a diaper and is vacuum-sealed, and another component includes therein a diaper accessory and may or may not be vacuum-sealed. The compartments may be formed by creating seams in a flexible material forming the air impermeable encasement.

Abstract: Apparatuses and related methods of use are provided for the accumulation and wrapping of palletized loads with packaging material. In an exemplary embodiment of the present disclosure, the apparatus includes a low profile conveyor having non-powered conveying elements. In another embodiment, the apparatus is a stretch wrapping system for wrapping palletized loads. The stretch wrapping system may include a dispenser, a means for providing relative rotation between the dispenser and the load to be wrapped, a low profile conveyor, and a powered pusher assembly for moving the loads.

Abstract: The invention concerns a method for controlling a blister packaging machine having a work station which at least operates in cycles and which performs at least one first adjusting motion for a time period TV1 during one work cycle, followed by a treatment state for a time period TB, in which a product and/or material is treated. A second adjusting motion is then performed for a time period TV2 followed by a resting state for a time period TR. The time periods TV1, TB, TV2 and TR and a cycle rate R (=cycles/min) of the packaging machine are preset and at least the cycle rate R can be changed to a different cycle rate RV using the input means. A cycle time difference ?T which results from the changed cycle rate RV is substantially used to change the duration TR of the resting state. The time periods TV1, TB and TV2 preferably remain unchanged when entering a different cycle rate RV.

Abstract: Capsules, for example for the delivery of pharmaceuticals, are produced from two films (18) of a water-soluble polymeric material, by deforming the films to form a multiplicity of recesses, and filling the recesses, using two adjacent rotary dies (14, 15; 42) with recesses (16) into which the films (18) are deformed. The dies (14, 15; 42) act as electrodes for welding the films together by dielectric welding to form filled capsules (30). The capsules (30) can be separated from the resulting web either by coating at least one of the dies (14) with an electrical insulator (21), or by transferring the web from the dies (14, 15; 42) to a second pair of dies which cut the capsules (30) free. The polymeric material may be gelatin, or a water-soluble cellulose derivative such as hydroxypropyl methyl cellulose, and may also contain a plasticiser.

Abstract: A sheet package producing system includes at least a cutter module and a packaging module. The cutter module has a cutter blade, for producing X-ray films by cutting a continuous sheet material. The packaging module has packaging robots, for producing a sheet package by packaging the X-ray films stacked on one another. In the sheet package producing system, a first module control unit is incorporated in the cutter module, for controlling the cutter blade. A second module control unit is incorporated in the packaging module, for controlling the packaging robots. A CPU is connected with the first and second module control units removably by a component network, for controlling the cutter module and the packaging module in synchronism.

Abstract: A pattern former for assembling wrapped bakery products into predetermined patterns includes a vacuum turntable comprising a perforated plate which is driven by a belt extending around the periphery of the vacuum turntable and actuated by a motor. A first transfer apparatus includes a pusher plate which moves groups of wrapped bakery products onto the vacuum turntable and which retracts to facilitate the formation of a subsequent group of wrapped bakery products as a previous group is being transferred to the vacuum turntable. A second transfer apparatus includes a pusher plate which moves assembled patterns of wrapped bakery products from the vacuum turntable into bakery trays and which is retractable to the facilitate the assembly of a subsequent pattern of wrapped bakery products as a previous pattern is being transferred to a bakery tray.

Abstract: In the process, a strip of containers made of a heat-formable material is guided through a deviated course in a transversal direction with respect to a main horizontal line of advance, in which the strip of containers undergoes, in sequence, a first rotation of a quarter of a full turn about a vertical-axis first guide, a first twist by half a full turn, a second rotation, by half a full turn, about a second guide having a winding axis which is parallel to the line of advance, returning towards the line of advance, a second twist by another half a full turn, and finally a third rotation about a vertical axis third guide. With this process, the longitudinal extension of the line of advance is reduced.

Abstract: A filter bag (1) for a filter device includes a tubular, flexible body (6) provided with a suspension arrangement at an unfolded end thereof. The suspension arrangement includes a rigid ring element (7) annularly secured to the unfolded end of the filter body. The ring element (7) is arranged at least partially at an interior part of the filter body (6). Also a filter device including a housing with a dust chamber (4) and a clean-air chamber (5) that are separated by an partition wall (3) suspending at least one filter bag (1) as described above that extends through an opening (2) provided in the partition wall (3) with a main part of the filter body (6) located in the dust chamber (4). The ring element (7) of the filter bag (1) extends at least partially into the opening (2) in the partition wall (3).

Abstract: A deep format filter element has a peripheral frame with outwardly protruding mounting flanges. The mounting flanges simulate the periphery of a shallow format filter element to allow the deep format filter element to replace the shallow format filter element in many situations. The frame design allows the entire frame to be formed of cardboard and still provide adequate rigidity and strength. The frame includes at least a first cardboard sheet forming individual sides of the frame and panels of the mounting flange. The first cardboard sheet includes for each mounting flange at least two inside folds defining edges of the mounting flange's end panel and first and second side panels. An outside fold defines the second side panel of the mounting flange.

Abstract: A filter assembly includes a reusable filter frame and a replaceable, pleated, reversibly expandable, self-spacing filter removably arranged in the frame. The self-spacing pleated filter expands uniformly with equal pleat spacing to allow the filter to be easily installed in the reusable filter frame without the aid of a secondary spacing structure. When the filter is expanded to the length of the filter frame, the filter is under tension, thereby allowing the length of the filter to be readily adjusted to match the length of the frame and allowing the pleats to be aligned with corresponding ribs provided in the frame.

Abstract: A replaceable, self-spacing, pleated, filter insert that can be easily installed in a reusable filter frame without the aid of a secondary spacing structure includes reversibly collapsible and expandable filter media including a plurality of pleats that expand uniformly when the filter is expanded. When the filter is expanded to the length of the filter frame, the filter is under tension and behaves like a spring, thereby allowing the length of the filter to be readily adjusted to match the length of the frame and allowing the pleats to be aligned with corresponding ribs provided in the frame.

Abstract: Device for treatment of a gas flow having at least one body (3) that is adapted to cause a conversion in the composition of the gas. The device is characterized in that the body (3) has a modular construction comprising a plurality of sections (26, 26?, 27, 27?, 36) with different internal structures that allow gas to flow through the section, and that the sections (26, 26?, 27, 27?, 36) are arranged so that at least a portion of the gas flows through at least two sections with different internal structures during operation of the device.

Abstract: A honeycomb filter 1 includes a cylindrical honeycomb structure 2 having a plurality of cells 4, and plugging members 7 disposed to alternately plug openings 5 of predetermined cells 4a on the side of one end face 6a and the openings 5 of the remaining cells 4b on the side of the other end face 6b of the structure 2 in checkered flag form, and further having second plugging members 8 disposed to plug openings 5 of cells 4 which are not plugged by the first plugging member 7 on either side of two end faces 6a and 6b of the structure 2 corresponding to 0.2 to 2.5% of the area of the cross section perpendicular to the center axis of the structure 2 in a center section occupying at least ? of the area from the center axis of the structure 2 to an outer circumferential surface 11.

Abstract: A filter (10) and an inflator assembly (15) for use in an inflatable vehicle passenger restraint system. The inflator assembly (15) includes an inflator housing (70) having a wall (71), a combustion chamber (72) formed in an interior of the housing (70), and a gas generant composition positioned in the combustion chamber (72) and ignitable to provide inflation gas to the inflatable occupant restraint system. The filter (10) is positioned intermediate apertures (73) in the combustion chamber (72) and apertures (19) in the inflator housing wall (71). The filter (10) includes a filter body (11) spaced apart from the housing wall (71) and at least one continuous lip (12) extending from the filter body (11). The lip (12) has a peripheral edge (75) that abuts the housing wall (71) over substantially the entire perimeter of the peripheral edge (75).

Abstract: This invention relates to air filter components and apparatuses that act to scavenge gas phase free radicals present in polluted air. In specific aspects, the invention relates to filters that contain proanthocyanidins for scavenging the free radicals. The present invention is also directed to a method for producing air filter components and apparatuses with scavenging effects on gas phase free radicals.

Abstract: A vehicle includes a horizontal support frame mounted to the vehicle, a first slewing ring bearing moveably mounted on and substantially parallel to the horizontal support frame, an articulating boom having a first end mounted on the first slewing ring bearing and moveable relative to the frame, and a mower deck mounted on a second end of the articulating boom for positioning relative to the frame and the vehicle.

Abstract: A cylinder unit for a cylinder lawn mower, comprising a fixedly mounted abutment (3), a cylinder means (2), which is rotatable about a longitudinal axis (L) and which is provided with at least one knife (6), and an insertion means (7) for engaging and inserting grass into the abutment (3), each knife (6) by rotation of the cylinder means (2) being movable to a cutting position (K), in which the knife (6) cooperates with the abutment (3) to allow grass cutting.

Abstract: A mowing device including a disc, the disc providing a mount for at least one knife, said knife being pivotably mounted to said disc by a pivot pin, said pivot pin defining a mounting axis, such that the knife can rotate about said pivot pin between a first extended position and any retracted position, said disc being constructed of a basic material thickness and comprising a mounting surface; said mowing device including a knife adapter comprising a cylindrical aperture and a projection; said pivot pin comprising a first cylindrical section of a first diameter to fit into said cylindrical aperture in said knife adapter, and a second cylindrical section, of a second diameter, with a groove defined by a groove width and a pin section thickness at the groove of a dimension less than said second diameter; said mowing device including a retainer constructed of a material thickness equal to or less than the width of said groove, with a key-hole shaped aperture defined by a first circular section with a first insid

Abstract: Engine embodiments primarily designed for aircraft propulsion and power generation incorporating the Carnot cycle for efficient combustion with typical embodiments including air compressors having one or more stages with isothermal compression and including combustion and expansion chambers having in part isothermal expansion before final adiabatic expansion.

Abstract: A nozzle comprising an inner barrel, a centerbody disposed inside the inner barrel so as to define a first channel for a primary flow, and an outer barrel surrounding the inner barrel so as to define a second annular channel for a secondary flow, the free end of the inner barrel presenting a surface having a first series of undulations made up of negative undulations alternating with positive undulations, the centerbody presenting a second series of undulations made up of negative undulations alternating with positive undulations, the negative and positive undulations of the series of undulations being of radial height that varies angularly and being disposed in such a manner that the negative undulations of the first series are disposed facing negative undulations of the second series, and vice versa, so as to generate turbulence and radial shear between the primary and secondary flows while conserving a constant flow section around the entire circumference of the nozzle.