Abstract: An apparatus for, and method of, imaging printed and electronic codes associated with transactions or objects to be processed, support a window on a housing, illuminate the codes through the window with illumination light from an energizable illumination system, capture return illumination light from the illuminated codes through the window with an array of light sensors looking at a field of view of a solid-state, exposable imager, and process the captured return illumination light. A printed code is read by exposing the imager for a first exposure time and by also energizing the illumination system during the first exposure time. An electronic code is read by exposing the imager for a second exposure time that is longer than the first exposure time and by also deenergizing the illumination system during the second exposure time.

Abstract: A method of operating a reader system includes: providing a reader for reading information data carriers; an operator loading a configuration overlay onto the configuration settings of the reader upon successful logging, wherein the configuration overlay is specific to the operator; and reading information data carriers utilizing the configuration overlay.

Abstract: A focus adjustment apparatus (10) for a code reader (100) is provided which has an objective (12) having at least one lens and a drive (18) with a cam plate (16) for the positional adjustment of the objective (12). The objective (12) is supported in a parallel guide (14) having a coupling unit (32, 34) for the coupling of the cam plate (16) so that a rotational movement of the cam plate (16) adjusts the position of the objective (12) in the parallel guide (14) with a parallel shift of the objective plane. The coupling unit (32, 34) has a press-on element (32) for the play-free coupling of the parallel guide (14) to the cam plate (16) and a counter-bearing element (34) between the press-on element (32) and the drive (18) for relieving the drive (18) from the press-on element (34).

Abstract: A system for protecting a machine readable card is disclosed. Said system comprising a cover and a machine readable card. Said cover having a first side, a second side, a cover height, a cover width, and a cover thickness. Said machine readable card comprising one or more machine readable components, a card width and a card height. Said cover is capable of attaching and covering a portion of said machine readable card. Said cover is capable of detaching from and reapplying to a portion of said machine readable card.

Abstract: The invention relates to improvements in security substrates for security documents. The security substrate has at least two sets of regions having a machine detectable characteristic, in which only a first set of regions is applied to a first surface of the substrate. At least two sets of regions together form a machine readable code.

Abstract: A memory card supporting near field communication through single wire protocol includes a power management unit, an interface control unit, a data storage unit, a power protection unit and an intelligent unit. The power protection unit is interposed between the power management unit and a near field voltage source of the near field communication unit to prevent short-circuit induced by direct connection there between. Moreover, direct connection between the power management unit and the intelligent unit can also be prevented, which can protect against bursts of excessive voltages or currents that may damage the data in the intelligent unit. Additionally, the power protection unit can prevent power leakage from the power management unit and the near field voltage source, which solves the problem of improperly driving near field communication or insufficient power supply to the interface control unit or intelligent unit.

Abstract: Most on-metal asset tracking RFID tags consist of a core material (e.g. ceramic, FR4, rigid foam, etc.) with an EPC Gen2 standards based integrated circuit (IC) attached to an antenna. This invention adds a high dielectric material (some plastics, all ceramics, etc.) placed on the surface of the antenna and a metallic foil (Copper, Aluminum, etc.) placed above (at a distance from) the antenna. These materials effectively “load” the antenna, reducing the rate of change in the antenna impedance. Reducing the rate of change increases the operational bandwidth of the antenna. This approach has been demonstrated both in theory, and practice. Using the approach described above, tags can perform to worldwide application requirements, i.e., they function well within the entire 866 MHz-954 MHz range.

Abstract: A winding core (WC) having a tubular body portion (B) and two ends is mounted by one of its ends to a module tape (MT), a module antenna (MA) is wound around the winding core (WC), a chip (CM) is disposed on the module tape (MT) within the winding core (WC). Connections (wb) are made, and glob-top (GT) is applied over the chip (CM), substantially filling the interior area of the winding core (WC). The module antenna (MA), winding core (WC) and chip (CM) may subsequently be overmolded with a mold mass (MM). The winding core (WC) may have a flange (F) at one end. Using the module antenna (MA) itself as a dam for the glob-top is disclosed. Double-sided and single-sided module tapes (MT) having vias, openings, or vias and openings are disclosed.

Abstract: A method and apparatus for encoding and decoding sequential index numbers to pseudo-random Personal Identification Codes (PINs) of varying word size in disclosed. The word size is defined by a word size control variable. The encoding and decoding process utilizes a symmetric, secret key, block encryption/decryption method. The index numbers are encrypted and the output result produces the PIN numbers. The encryption process may be reversed to a decryption process using a mode control input. When reversed to decryption, the PIN numbers are translated back into the original index numbers utilizing the same secret key for encryption. The block size of the encryption/decryption method is matched to the word size control variable. The word size defines the maximum number of index number/PIN code pairs. There is a one-to-one correspondence between a single index number and the resulting PIN number, thus forming a unique ordered pair.

Abstract: A monetary transaction system allowing a biller to generate an invoice for a customer with a bar code comprising data identifying the customer and the biller, and a scanning apparatus for use by a third party configured both to scan the bar code and, based on the identifying data, to effect payment to the biller in a predetermined or customer-specified amount.

Abstract: An electronic shower system including a mixing valve operably coupled to a mixing valve drive, and a diverter valve operably coupled to a diverter valve drive and in fluid communication with the mixing valve. A controller is in communication with the mixing valve drive and the diverter valve drive. A user interface includes a removable module in communication with the controller.

Abstract: The present invention provides a polyurethane elastomer ballast mat and the preparation thereof, and a railway track bed and railway facilities using the same. The polyurethane elastomer ballast mat according to this invention comprises a reaction product prepared by spraying a reaction system comprising a polyisocyanate, a polyol, a chain extender, a blowing agent and a catalyst, on the surface of a railway roadbed or on one surface of a ballast mat shielding to conduct a reaction. The technical solution of the present invention makes it possible to provide ballast mats with different mechanical properties, shapes, thicknesses and sizes, depending on particular installation conditions, in order to adapt to various requirements for installation and use in railway construction.

Abstract: Examples of the invention relate to a supersonic nacelle design employing a bypass flow path internal to the nacelle and around the engine. A set of aerodynamic vanes may be used to shape a supersonic airflow within a bypass around an engine. The vanes may be capable of compressing the supersonic airflow into a subsonic airflow, direct the subsonic airflow around the engine, and then expand the subsonic airflow into a supersonic exhaust. The vanes may shape the airflow by reducing sonic boom strength, cowl drag, and airframe interference drag.

Abstract: A system for damping combustor nozzle vibrations includes an end cover and a combustion chamber downstream from the end cover. First and second sets of nozzles extend axially between the end cover and the combustion chamber. The second set of nozzles is adjacent to the first set of nozzles. The system includes means for damping vibrations between the nozzles with a gap between the means for damping vibrations. A method for damping combustor nozzle vibrations includes flowing a working fluid through first and second sets of nozzles, wherein the first set of nozzles includes a damping member attached to and circumferentially surrounding at least a portion of the first set of nozzles, and contacting at least one nozzle in the second set of nozzles with the damping member on at least one nozzle in the first set of nozzles.

Abstract: The invention concerns a method for detecting the wear of a cutting nozzle (2) on a cutting torch (1) for cutting steel workpieces, in particular slabs, blooms and slugs. A branch line (16) exits to the cutting torch (1) in the feed line (9) of the heating gas connection (3), into which branch line a neutral medium with a set pressure is blown through the cutting nozzle (2) after closing the medium valves (6,7,8) for heating gas, cutting oxygen and heating oxygen. To do so, said process is carried out once when installing a new cutting nozzle (2) for the calibration thereof. Said process is performed again at set intervals, depending on the usage of the cutting nozzle (2), in order to determine and to store in memory the wear condition of the cutting nozzle (2) and to generate an optical and/or acoustic signal in case a predetermined maximum admissible deviation amount of the medium blown in has been exceeded.

Abstract: The invention relates to a gas liquid contactor and effluent cleaning system and method and more particularly to individually fed nozzle banks including an array of nozzles configured to produce uniformly spaced flat liquid jets shaped to minimize disruption from a gas. An embodiment of the invention is directed towards a gas liquid contactor having a plurality of modules including a liquid inlet and outlet and a gas inlet and outlet. An array of nozzles is in communication with the liquid inlet and the gas inlet. The array of nozzles is configured to produce uniformly spaced flat liquid jets shaped to minimize disruption from a gas flow and maximize gas flow and liquid flow interactions while rapidly replenishing the liquid.

Abstract: A flow regulator for use with a lawn sprinkler. The apparatus includes an impeller, a regulator portion and a nozzle regulator portion. The sprinkler is configured to regulate the delivery of water according to the shape of the area to be irrigated, so that water is not wasted on adjacent areas which do not require irrigation.

Abstract: A decoration arrangement includes a supporting container, a predetermined amount of scent generating solution contained in the supporting container and a decorative article. The decorative article includes a supporting stem, a solution absorbing layer extended an outer surface of the supporting stem for absorbing the scent generating solution, a plurality of decorative elements spacedly extended from the supporting stem, and a plurality of connecting joints provided on the supporting stem to connect the decorative elements with the supporting stem, wherein the connecting joints is made of waterproof material so that the scent generating solution absorbed by the solution absorbing layer is prevented from being soaked by the decorative elements, so that a predetermined scent is generated by the decorative article without having the decorative elements to become wet.

Abstract: The invention relates to a portable paint spraying system, comprising a base station with a blower, paint spraying means, in particular a paint spray gun, at least one tube for connecting the base station and the paint spraying means, at least one paint container for receiving a quantity of paint, and a device for transmitting power to the paint container, wherein the quantity of paint in the paint container is heated by the transmitted power. In this case, the device for transmitting power is arranged in the base station.

Abstract: The repainting head is designed to be installed on a workbench of a repainting machine for repairing circular lids. It is characterized in that it comprises a repainting device (1) moveable by means of an elevation device (2), this repainting device (1) having a main rotary shaft (13) to which are attached one/two axial shafts (18) on which are mounted one/two painting arms (19) that are constrained to rotate with the main rotary shaft (13). Each repainting arm (19) is connected to the respective painting gun (20), the distance of which from the geometric centre of the main rotary shaft (13) is variable, each arm (19) rotating about the axial shaft (18), the required position of each repainting arm (19) being set using anchoring means that prevent any relative movement between the main rotary shaft (13) and the axial shaft (18).

Abstract: A boom structure for a mobile agricultural implement. The boom structure includes a first transversely extending beam member having a first protrusion. The boom structure includes a second transversely extending beam member having a second protrusion. The second transversely extending beam member is spatially offset from the first transversely extending beam member. A plurality of first coupling members are coupled to the first protrusion and a plurality of second coupling members coupled to the second protrusion. A plurality of connecting members are coupled to the first and second coupling members to connect the first and second transversely extending beam members.

Abstract: A nacelle for an aircraft engine is provided that includes a thrust reverser cowling slideably mounted between a direct jet position and a reversed jet position, an outlet jet pipe nozzle with variable cross-section positioned in a downstream extension of the reverser cowling, and means for respectively actuating the cowling and the nozzle. The nozzle is slideably mounted on the thrust reverser cowling, and the means includes at least one actuator for actuating said thrust reverser cowling, at least one driving pinion rotatably mounted on a fixed structure of said nacelle, and at least one rack for actuating the nozzle, secured to the nozzle and meshing with the driving pinion when the thrust reverser cowling is in the direct jet position, and escaping from this pinion when said reverser cowling is in the reversed jet position.

Abstract: An arrangement is provided that includes a thrust reverser flap link rod on an internal fixed structure of a turbojet engine nacelle. The link rod is connected to the internal fixed structure by an elastic means that is a spring.

Abstract: An aircraft engine nacelle is provided that includes a fixed front frame, a thrust reverser cowling mounted to slide with respect to the front frame between a direct-jet position and a reversed-jet position, a variable-geometry nozzle positioned in a downstream continuation of the reverser cowling, thrust-reversal jacks interposed between the front frame and the thrust-reverser cowling, adaptive nozzle jacks interposed between said thrust reverser cowling and the variable-geometry nozzle, drive shafts mounted on the front frame, transmission shafts extending along the thrust reverser cowling as far as the variable-geometry nozzle jacks, and mechanical means for coupling said transmission shafts to said drive shafts, and means for locking rotation of said transmission shafts before decoupling of the transmission shafts from their respective drive shafts, and when the decoupling is completed.

Abstract: A washer nozzle (1) is provided with a nozzle body (2), a nozzle tip (11) which is mounted within the nozzle body (2), and a nozzle holder (15) having a head portion (9) for storing the nozzle body (2) and also has a supply portion (10) for supplying a cleaning liquid. The nozzle body (2) has a partitioning plate (4) configured to partition the spray orifice into two-tiered parts, and also has a guide portion (3) for guiding liquid spray. The nozzle body (2) of the washer nozzle (1) is configured so that the relative angle between upper liquid spray and lower liquid spray can be changed by making the length (a) of a guide region variable, the guide region extending in the direction of the center axis (c) of the nozzle body from the front end surface of the partition plate to the front end surface of the guide portion (3).

Abstract: A shower and speaker assembly. The assembly may include a shower device including a device housing defining an inlet communicating with an inlet chamber, an outlet and a waterway communicating between the inlet chamber and the outlet, the device housing further defining a receptacle having a closed end and an open end, the inlet chamber being behind the closed end, the waterway extending along the receptacle from the closed end toward the open end; and a speaker supportable in the receptacle. The outlet may define an outlet plane, and the speaker may include a speaker housing providing a speaker outlet, the speaker outlet being one of aligned with and positioned forwardly of the outlet plane when the speaker is supported in the receptacle. The assembly may further include a magnetic connecting structure operable to releasably connect the speaker and the shower device.

Abstract: The invention relates to a device for distributing liquids comprising a distribution chamber (12) having a liquid inlet (3) and a plurality of liquid outlets (7). Protrusions (19, 20) extend into the distribution chamber (12) between the liquid outlets (7) and thus prevent dead spaces in which sediments can settle.

Abstract: A seesaw control shower has a switch unit and a fixed unit with several outlet functions. The fixed unit has a groove to assemble with the switch unit and connect to the water source. The switch unit has an elastic pushing rod, a seesaw and a driving element. The first end of the pushing rod is connected to the groove. The driving element is and connected to the pushing rod. The seesaw is rotatably disposed inside the groove with one end as the axis. The other end of the seesaw has a W shaped inclined surface forming two apex angles. The second end of the pushing rod can withstand one of the two apex angles rotate the seesaw. The second end of the pushing rod can withstand one of the apex angles to rotate the seesaw.

Abstract: An injector (10) includes a valve body (16), an armature tube (20) in the valve body, a seal disk (24) carried by the armature tube, a spring (30) associated with the seal disk, a seat (34) defining an outlet. The seat includes a seat surface (38) engaged with the seal disk that is biased by the spring, when the injector is in a closed position, preventing fuel from exiting the outlet. A movable armature (42) is coupled to an end of the armature tube. An adjusting tube (48) engages an end of the spring. An inlet tube (50) defining an inlet has an end surface that is spaced from the periphery of the armature in the closed position. An electromagnetic coil (58) is disposed about a portion of the inlet tube. A flux member (60) is associated with the coil. A housing (62) covers at least a portion of coil.

Abstract: The fuel injector provides an oncoming flow, that is uniform and stable in time, of the spray-discharge orifices is produced and consequently, and a reduction in variance in the spray and flow-through characteristics variables. The fuel injector includes at least one excitable actuator and a valve element that is movable along a longitudinal valve axis, which collaborates in a sealing manner with a valve seat. Upstream of the valve seat, circumferentially a plurality of flow-through regions are provided, between which there are guidance regions for the valve element. The spray-discharge orifices downstream from the valve seats, whose number differs from the number of the flow-through regions, discharge the fuel finely atomized. At least two flow-through regions differ in size, such as circumferential width and/or radial depth, and/or contour. The fuel injector directly injects fuel into a combustion chamber of an engine using compression of a fuel/air mixture and spark ignition.

Abstract: An injector (10) includes a valve body (16) having an interior portion (18) and a seat (32). An armature tube (20) is in the interior portion. A spring (28) biases a valve member (24) into engagement with the seat. A movable armature (40) is coupled to the armature tube. A calibration member (36) is engaged with the valve member and engaged with the spring. A stator (52) is coupled to an inlet tube (41) and has an end surface spaced from an end surface of the armature in the closed position of the injector, thereby defining an air gap (54) between the end surfaces. A coil (56) is disposed about a portion of the inlet tube. A housing (64) surrounds at least a portion of the coil. Magnetic flux causes the armature and armature tube to push the valve member off the seat.

Abstract: This invention relates to a method of dry separation for concentration and separation and a system used for the method of dry separation for concentration and separation. In the method of dry separation for concentration and separation, ore is crushed by a crusher first, and after being dry ground, materials are concentrated in conditions of airflow ventilation and vibration of the directional second vibrator by way of a dry separation concentrator. The system includes a materials feeding device, a friction vibration separator and a dry separation concentrator, the materials feeding device being setup above the friction vibration separator, at least two materials transport grooves being setup below the friction vibration separator, at least two materials transport devices being setup above the dry separation concentrator.

Abstract: An electrical appliance, such as a shredder, having low standby power consumption is provided. A power isolation circuit is positioned to electrically disconnect electronic components of the shredder from the shredder's primary power source. An auxiliary power source may generate or store power for powering electronic components, such as sensors or processors, while the primary power source is disconnected. A power isolation controller may use a timer, light detector, or user interaction sensors to determine whether to reconnect the primary power source to the electronic components.

Abstract: An apparatus and method for accelerating food product in order to cause the product to be stretched aligning the fibers of the product.

Abstract: A bone mill including a base and a mill head that is removably attached to the base. A cutting disc is moveably disposed in the mill head. A motor is disposed in the base. A spindle attached to the motor releasably engages the cutting disk. The spindle is also capable of movement towards and away from the motor. A spring holds the mill head away from the motor. In some versions of the invention, the spring urges the spindle towards the cutting disc. The biasing force exerted by the spring urges the spindle into engagement with the cutting disc. A locking assembly releasably holds the mill head to the base in opposition of the force exerted by the spring.

Abstract: A modular coolant water jacket has a coolant tube cartridge portion and a selectively separable outer flange portion. Separation of the larger diameter outer flange portion from the cartridge portion facilitates axially oriented insertion and removal of the cartridge tube portion in radially confined spaces. Modular construction also facilitates reuse of the outer flange portion and replacement of only a worn cartridge tube portion.

Abstract: An electric motor-driven kitchen appliance includes at least one coupling site for a plurality of tools for processing foodstuffs, and a storage facility which is made of a flexible material for storing the plurality of tools. The use of a flexible material for the storage facility simplifies handling because the storage facility is relatively light and easy to clean. Because of the flexible material, various tools can be used for storage because the storage facility can adapt flexibly to the outer shape of the tools. When the storage facility holds no tools or only a small number of tools, it can easily be pressed or folded together, which also leads to a space-saving storage of the storage device itself.

Abstract: A grinding mill including one or more lifter bar assemblies mounted on a shell rotatable around a central axis thereof. Each lifter bar assembly is for lifting at least a lifted portion of a charge including ore, and includes a main portion for lifting and directing a main part of the lifted portion in a main part direction substantially orthogonal to the central axis of the shell. The lifter bar assembly also includes one or more terminal lifter bars located proximal to one or both of feed and discharge ends of the shell, for lifting and directing terminal part(s) of the lifted portion of the charge. The terminal lifter bar is positioned for directing the terminal part of the lifted portion of the charge at least partially in a terminal part direction which is substantially non-aligned with the main part direction.

Abstract: A piston for a pretensioner device (10) for a motor vehicle seat belt system of a type having a gas generator (17) with the piston (21) guided in a tube (16) that closes a pressure space (20) in the tube (16). The pressure space (20) can be pressurized by the gas generator (17), driving the piston (21) to undergo pretensioning operation transmitted to the seat belt system by a force transmission means. The piston has a dome shaped front side adapted to engage a force transmission element and a skirt forming a sealing lip oriented toward the pressure space. At least one slot is formed in the outer surface of the piston extending axially from the sealing lip. The slot can be enlarged by the material erosion caused by the pressure and/or pressure conditions in the pressure space produced by gas from the gas generator.

Abstract: An exemplary wire-winding device can automatically wind a wire that is connected to a plug such as the plug of an earphone set. The wire-winding device includes a rotary wire-winding unit and a locking unit. A plug inlet channel and a moving cavity are defined in the rotary wire-winding unit. The locking unit includes a moving member accommodated in the moving cavity, for controlling locking and releasing of the rotary wire-winding unit. When the plug is inserted into the moving cavity, the plug applies a thrust force to the moving member, and the moving member moves in the moving cavity under the thrust force and thereby releases the rotary wire-winding unit to allow the rotary wire-winding unit to rotate and automatically wind the wire.

Abstract: Method and device for manufacturing an object (1) by spinning at least one thread (5) or band with a hardenable matrix onto a core element (4), the thread (5) or band being carried by a spool (2) which rotates in relation to the core element/object (4/1) at the same time that the spool (2) moves chiefly in one specific length direction in relation to the object (1) so that the object (1) is continuously pulled off the core element (4). In addition to the movement in the specific length direction, a back and forth movement is conducted between the spool (2) and the core element/object (4/1) over a predetermined part of the core element's/object's (4/1) length so that the thread (5) or band is applied chiefly from the object's inner surface to its outer surface while forming a 4-dimensional structure.

Abstract: A removable tube structure comprising of a tube and a plate conjoined to one end of the tube, whereby the plate having a hole in the center, of the same diameter as the inside diameter of tube, allows for removable mounting of the tube structure onto and over one end of a two telescoping tube toilet paper roll mandrel assembly, and the plate having an area extending radially outward, whereby the plate can be contacted by an empty or full toilet paper roll being pushed axially towards the plate by at least one finger of a user, which actuates the removable tube structure and compresses the telescoping tubes of the mandrel assembly, in order to remove and replace the roll of toilet paper, and the associated telescoping tube mandrel assembly, from a mandrel assembly holder.

Abstract: A lift generating device is provided enabling vertical flight. The lift generating device includes a first revolution structure having a funnel shape and a second revolution structure having a funnel shape. Each revolution structure includes a circular open surface and an open stem. The second revolution structure is attached to the first revolution structure by a plurality of connectors so as to form a gap between the first revolution structure and the second revolution structure. A propeller is coupled to an open stem at a bottom end of the first revolution structure and a motor is operatively connected to the propeller to provide power for the propeller to suction air into the lift generating device.

Abstract: A fixed-wing VTOL aircraft features an array of electric lift fans distributed over the surface of the aircraft. A generator is (selectively) coupled to the gas turbine engine of the aircraft. During VTOL operation of the aircraft, the engine drives the generator to generate electricity to power the lifting fans. Power to the lifting fans is reduced as the aircraft gains forward speed and is increasingly supported by the wings.

Abstract: A reconfigurable rotor blade system includes an internal mass that is configured to translate in order to produce a spanwise torsional twist of the rotor blade. An actuator is configured to selectively translate the mass so as to relocate a center of mass of the rotor blade. The torsional twist is selectively produced during operation of the rotorcraft.

Abstract: An aerial vehicle is described which comprises: a first compartment for holding a lighter than air gas; a second compartment for holding atmospheric air and having an inlet and an outlet; a solar panel for converting sunlight into electricity; a compressor for pumping atmospheric air through the inlet into the second compartment; control means for controlling the pitch and yaw of the vehicle; and a controller for controlling the buoyancy of the vehicle via the compressor and the outlet such that the vehicle is either lighter than the surrounding air and rising or heavier than the surrounding air and falling, and for controlling the control means such that the rising and falling motion includes a horizontal component. In another embodiment the solar panel is replaced by an engine and a fuel tank for storing fuel for the engine is also provided. The aerial vehicle can remain airborne for extended periods by using buoyancy propulsion.

Abstract: A controllable buoyant system (10) includes a support structure having a sealed hollow enclosure (12) containing a first gas and surrounded by a second gas, either the first gas or the second gas being lighter than ambient air. The hollow enclosure is pre-filled with the first gas via a one-way valve that prevents the first gas escaping and an altitude sensor (14) generates an altitude signal indicative of a height of the support structure. A height transducer (17, 21, 61, 66, 67, 68) coupled to the hollow enclosure is responsive to the altitude signal for varying the buoyancy of the support structure. A controller (15) is coupled to the altitude sensor and to the height transducer and is responsive to the altitude signal and to at least one reference altitude signal for automatically controlling the height transducer in order to maintain the support structure buoyant at the preset altitude.

Abstract: A method for enhancing pilot and cockpit crew efficiency and increasing aircraft safety during aircraft ground travel between landing and takeoff is provided. The present method is most effective in enhancing pilot efficiency and aircraft safety in an aircraft equipped with at least one powered, self-propelled drive wheel that drives the aircraft on the ground independently of the aircraft main engines or external tow vehicles that is controlled by the pilot and cockpit crew to maneuver the aircraft during ground travel.

Abstract: Aircraft engineering applicable for improving aerodynamic quality of helicopters, airplanes, including big airbuses and amphibian airplanes, aerodynamic ground-effect and air-cushion vehicles, by reducing contact area between the external fuselage tail section surface and a high-speed air flow, area of contact is reduced by increasing surface area of holes in the fuselage tail section. To increase lifting force without increasing pressure resistance, the aerodynamic channel bottom is convex upwards, for example, curved upwards according to the shape of the airfoil convex side. The upper hole for the aerodynamic channel in the fuselage skin may be located along the fin middle portion divided lengthwise by the fin to right and left, in two. The aerodynamic channel is made through and may be open. The upper front edge aligned hole of the aerodynamic channel has a greater surface area than the rear hole aligned with the fuselage end.

Abstract: A supporting half-structure for an aircraft engine nacelle is provided that includes at least one longitudinal beam and a front half-frame connected to each other and formed at least partly in composite materials. The half-structure includes a connecting hinge positioned in a junction area of the longitudinal beam and of the half-frame, the hinge being formed by composite materials laid out so that fibres of the composite materials are positioned in alignment with fibres of composite materials forming said front half-frame.