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Auxiliary member for pavement construction, concrete slab and method for pavement construction

An auxiliary member for pavement construction, including: a cylinder, a base plate and a leveling bolt; the cylinder includes a first cylinder part and a second cylinder part which are connected and communicated with each other, the first cylinder part is provided with a sling installing member and a slurry inlet, bottom of the second cylinder part is connected with the base plate, the base plate is provided with a bolt extending hole and multiple slurry discharging holes which are communicated with the inner cavity of the second cylinder part, the leveling bolt includes a bolt head and a screw, the screw extends through the bolt extending hole, the bolt head is arranged in the second cylinder part and the bolt head is smaller than the inner diameter of the second cylinder part. The present invention further provides a concrete slab and a method for pavement construction.




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Formfitting connection with break-away function in one direction between two components

A form-fitting connection between two components (5 and 14) has a break-away function in one direction. At least one connection element, designed as a shear bolt (6), is formfittingly connected to the first component (5) to be connected. The end of the shear bolt (6) is formfittingly and functionally connected to a second component (14) via an attached component (17) that is resilient in the direction of the formfitting connection.




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Pavement repair system utilizing solid phase autoregenerative cohesion

A method for repairing an aged or damaged asphalt pavement is provided. The method involves preparing a surface of the aged or damaged asphalt pavement by filling in deviations from a uniform surface plane with dry aggregate and compacting the dry aggregate; applying a reactive asphalt emulsion to the prepared surface; and passing an emitter over the prepared pavement, wherein the emitter generates electromagnetic radiation having a wavelength of from 2-5 mm that penetrates into the pavement to a depth of at least 2 inches. The asphalt pavement is repaired by disturbing voids and interstices in the damaged pavement without dehydrogenation of the asphalt, such that oligomers present in the aged asphalt are linked together into longer polymer chains to improve ductility of the aged asphalt.




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Mobile applicator for thermo pavement marking

A mobile thermoplastic applicator comprises a kettle, a main gas burner, a heat exchanger plenum, and a screed die box. The kettle has walls which define an interior space for melting thermoplastic. The main gas burner is situated beneath the kettle, and is configured to heat the kettle. The heat exchanger plenum is situated inside the thermoplastic kettle and is configured to subdivide the interior space and circulate heated air from the main gas burner. The screed die box is configured to receive molten thermoplastic from the kettle and deposit that molten thermoplastic on a surface.




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Deployment apparatus for use with track systems

A track system may include a plurality of connected slat members that may form rollable tracks. The rollable tracks may be used in moving vehicles across sensitive ground. The rollable track may be deployed using various methods and/or apparatus such as, e.g., deployment apparatus including one or more spool portions for rolling and unrolling the rollable tracks.




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Method for laying down a pavement, a screed and a road paver

A method for laying down a pavement in which a compaction unit such as a tamper pre-compacts the paving material with a selectable stroke and at a selectable frequency while the pavement having a selectable pavement thickness is in the process of being laid down at a selectable paving speed, the stroke of the compaction unit is automatically adjustable in response to paving parameters, such as the paving speed and/or the pavement thickness, along a characteristic curve or in a characteristic map. The compaction unit includes an adjusting mechanism which is operable during the paving operation for adjusting the stroke of the compaction unit.




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Systems and methods for aiming asphalt material feed sensors

A system for measuring the height of paving material distributed by an auger of a paving machine in front of a grading implement, such as a screed, is disclosed. The system includes a sonic sensor and a laser pointer. The sonic sensor generates a sonic signal which is directed at the paving material distributed by the auger. The laser pointer generates a laser beam which is similarly directed at the paving material that has been distributed by the auger. The laser beam and the sonic signal meet at a common position on the paving material.




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Mat with indented grapple receiver

A mat with an upper road side and a lower ground contacting side, the mat comprising: a frame supporting one or more boards; and a grapple receiver formed in an interior portion of the mat and indented from one or both of the upper road side and the lower ground contacting side to allow grapple jaws to grip the grapple receiver between the grapple jaws.




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Enhanced strength manhole cover assembly and fabrication method

A manhole cover assembly includes a manhole structure, a manhole frame carried by the manhole structure and a manhole frame grout cementing the manhole frame to the manhole structure. The manhole frame grout includes a grout mixture having an epoxy resin, a curing agent and an aggregate. The epoxy resin and the aggregate are present in the grout mixture in an epoxy resin:aggregate weight ratio of about 0.09. A removable manhole cover is carried by the manhole frame. A manhole cover assembly fabrication method is also disclosed.




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Stripping device for a soil compaction roller and soil compaction roller, in particular trench roller

The present invention relates to a stripping device for a drum of a soil compaction roller, in particular, a stripping device for a drum of a trench roller, wherein the stripping device comprises a first scraping element disposed on a drum surface. The drum surface is provided with protrusions disposed on the periphery of the drum surface, wherein a drum extender is adapted to be attached to the drum. Provision is also made for the stripping device to have a second scraping element which is mounted on the first scraping element in an axially displaceable manner, wherein the second scraping element is adapted for attachment to the first scraping element by means of at least one fixing means.




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Grinding attachment

A grinding attachment for highways and similar surfaces is disclosed for grinding operations closer to adjacent obstacles than is possible with existing equipment using a straddle-type centrally mounted grinding drum. The grinding attachment assembly comprises at one end a stub axle, which engages the grinding drum via a head extension. The stub axle is attached to a shroud which is in turn supported by a mounting assembly, which in operation attaches to a vehicle or machine able to drive the grinding attachment. The grinding drum can thereby operate proximal obstacles adjacent a grinding surface by virtue of arrangement of the stub axle, shroud and mounting assembly.




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Two piece twist action retractable writing instrument

A retractable pen includes a cartridge partially received in a recess of a cap such that a first end of the cartridge is fixedly attached to the cap. An elongate barrel includes first and second open ends and a through channel fluidly interconnecting the first and second open ends. A portion of the barrel is snugly and threadedly received in the recess such that the cartridge is received in and extends through the through channel, and the barrel and the cap are rotatingly movable relative to each other via the threaded engagement between an extended position in which the second end of the cartridge extends through and out of the second open end of the barrel, and a retracted position in which the second end of the cartridge is disposed within the barrel.




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Pen dispensers with cartridges and interchangeable tip applicators

A pen dispenser for dispensing flowable and non-flowable material, comprising a pen body and an optional push button applicator for the pen, a universal cartridge, optionally having a disposable cartridge, and capable of accepting a multitude of interchangeable tip applicators.




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Container for dispensing preset amount of liquid content

Disclosed is a pencil-type case for allowing pressing a pressure button to discharge liquid content out to a content brush. The container for dispensing a preset quantity of liquid content accommodated in a main body by pressing a pressure button. The container includes: main body including content case to accommodate content in outer body and having pushing member; pumping member including: folding link driven by pressure button; check valve preventing content from flowing backward when content is introduced into cylinder tube via content-introducing hole formed in cylinder tube, and piston pumping content out to content brush of content brush body; and content brush body including: content-introducing tube in which check valve is installed; cam surface adjusting stroke of folding link; and content brush provided at leading end to discharge content of content-introducing tube.




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Heat-generating applicator head

A heated cosmetic applicator that has a plurality of small, individual heating elements placed within and/or on at least some of the lash grooming elements. A heat-generating applicator head for a heated cosmetic applicator that has a plurality of small, individual heating elements placed within and/or on at least some of the lash grooming elements.




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Process and formulation for a plastic pencil

A plastic pencil comprising a writing core, an interlayer coating material placed about the writing core, a porous casing enclosing the interlayer coating material on the writing core and a covering applied to the exterior surface of the porous casing.




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Cream dispensing applicator assembly

A cream dispensing applicator assembly allows an individual to easily, evenly, and cleanly apply cream to hard-to-reach areas of the body. The assembly includes an elongated member having a head coupled to a handle. The elongated member has an interior space configured for holding a liquid. A pad is coupled to the head. A channel extends through the head. A plurality of outlet ports is coupled to the pad and to the channel. A plunger, a shaft, a knob, and a switch are coupled to the handle. The shaft is coupled to and extends through the plunger. The knob is operationally coupled to the plunger wherein manipulation of the knob urges the plunger into the shaft. A valve is coupled to the handle and to the channel. The switch is operationally coupled to the valve wherein manipulation of the switch selectively opens and closes the valve.




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Structure for mounting a clip for a writing implement

A structure for mounting a clip for a writing implement which has a barrel extending along a longitudinal axis. The structure includes a fastening member made of plastic material integral with the barrel and having a proximal wall and a distal wall with respect to the barrel, the proximal and distal walls being arranged opposite each other and overall extending in substantially parallel respective planes in order to form between them a recess having an open insertion end. The clip includes a fastening portion having a substantially uniform thickness and is suitable for mounting in the recess by the open insertion end.




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Eraser cap assembly for writing instrument

An eraser assembly having at least one eraser, an eraser holder having a first rim including at least one notch, the eraser being disposed in the eraser holder and an eraser cap having at least one tab extending therefrom. The tab of the eraser cap engages the notch of the eraser holder, thereby securing the cap to the eraser holder and enclosing the eraser.




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Container for a stick of a cosmetic or hygienic product having a retractable applicator element

A container (1) for a stick of a cosmetic or hygienic product, comprising an applicator element (3) in which a stick (2) of said product can move axially relative to a base (32), as well as a tubular storage element (4) comprising a top (41) that contains a mobile sleeve (42) and is suitable for covering the applicator element (3) in a configuration wherein said applicator element is fully inserted into the sleeve and connected to said top by means of an elastically compressible device having two stable axial positions relative to a hilly inserted configuration, said device comprising a resilient element (43) pushing the sleeve (42) towards the outside of the top, and, distributed between the top and the sleeve, a heart-shaped guide track (44) arranged parallel to an axial direction of the top, and a follower (45) carried by a generally axially pivoting arm (46) such as to define stable top and bottom positions allowing the applicator element to be gripped or not. The resilient element (43) is arranged between the outer wall of the sleeve (42) and the inner wall of the top (41), and the guide track and follower are arranged in a lateral space formed by the shape differences of the cross-sections of the top and the sleeve.




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Golf tee insertion depth measurement tool

A golf tee insertion depth measurement tool provides a gauge to facilitate marking the shaft of a golf tee to indicate a desired insertion depth that provides an optimum height for a golf ball placed on the tee, which ball is to be struck by a club face having a height H. The tool has a base portion and an elongate stem portion having a stem length. The base portion has a first surface and a second surface. The stem portion is connected to the base portion and extends outwardly away from the second surface of the base portion. The stem portion is first marked along its length at a location corresponding to the club face height H above the ground. The shaft of a tee is then marked at a location corresponding to the marked location on the stem portion to provide the correct insertion depth for the tee.




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Miniature brush for oral hygiene

A miniature brush for dental hygiene having an elongated body having a first end in the form of a brush head and a second end, the elongated body also includes an upper elongated body surface and a substantially opposite facing bottom elongated body surface. The brush head including an upper brush head surface and a substantially opposite facing bottom brush head surface including a plurality of bristles extending from the bottom brush head surface and an anhydrous gel coupled to and extending from the bottom brush head surface.




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Writing utensil with two handles for writing with both hands simultaneously

A symmetric rigid writing device comprises two arms and a writing utensil. The writing utensil is permanently attached to the arms. The arms and the writing utensil are made of rigid materials. The arms are symmetric and the writing utensil is positioned at the center between the arms. Each of the arms is shaped like a curved pole. At least one end of each arm is attached to the writing utensil. The user may grasp the writing device by the arms with both hands and execute a writing action.




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Container with improved opening system

Container for liquid or paste-like products, of the type consisting of a tank and of a closing cap of said tank and a handle for a stem carried by said cap, said tank consisting of a cylindrical body, limited above by a neck, said stem being configured to be introduced through said neck and having at the distal end thereof an application unit, characterized in that on the outer periphery of said neck there are provided relief shaped elements guiding and retaining pin elements projecting internally from said cap, said shaped elements consisting of a serrated, annular base crown and a series of guiding and retaining bodies, the axis of which is angled with respect to the axis of said tank 1 , said bodies being mutually separated and separated from said annular crown by a channel.




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Dosing and dispensing device for liquid laundry detergent

A container adapted to contain and dispense a product and method for its use. The container comprises a hollow body, a filling opening, a dispensing opening, a valve and a resiliently deformable means for said valve. The valve may form a leak-tight engagement with the dispensing opening, and is openable by an external force acting on said valve whereby the leak-tight engagement is disengaged, allowing the product to be spread onto a fabric by the valve. The container may be used in a method for pretreating and subsequently laundering pretreated fabrics in an automatic washing machine.




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Fountain pen

A fountain pen comprises a hollow barrel such as can be held by a user, a nib stably attached to one end of the hollow barrel, also an ink cartridge housed internally of the hollow barrel and having a given containment volume. The cartridge is connected to the nib by way of a feed through which ink flows to the nib, and deformable by expanding at least partially between a normally undeformed first configuration, and a deformed second configuration in which the containment volume created internally is greater than the containment volume in the undeformed configuration.




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Dispenser with removable head

A dispenser includes a removable head or applicator and a body having a reservoir for containing a product, such as a cosmetics product or a medicinal product. By virtue of having a removable head or applicator, the dispenser is capable of dispensing various products.




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Writing instrument having a protective element for the retractable tip

A writing instrument includes a body extending between a rear end and a front end of the body which has an opening, the body defining an inner volume; a writing member mounted inside the body and including a tip which protrudes from the front of the body; a protective element including a guide portion sliding along the body and a protective end which extends the guide portion and has an opening to allow the tip to pass through, the protective element being movable between a tip protection position and a retracted position for writing; an elastic return element coupled with the guide portion in order to bias the protective element towards the protection position; and a system for locking the retracted position.




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Method and apparatus for displaying home screen in mobile terminal

A method for displaying a home screen in a mobile terminal includes determining a location of the mobile terminal, determining a screen associated with the determined location among multiple screens; and setting the screen associated with the determined location as a home screen.




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Mobile wireless device with multi feed point antenna and audio transducer and related methods

A mobile wireless communications device may include a portable housing, a circuit board carried by the portable housing, a wireless communications circuit carried by the circuit board, and an audio circuit carried by the circuit board. The mobile wireless communications device may further include an antenna assembly including an antenna carrier frame coupled to the circuit board and defining a cavity therein, and an antenna element carried on the antenna carrier frame and having a plurality of spaced apart signal feed points coupled to the wireless communications circuit. In addition, an audio transducer may be carried within the cavity of the antenna carrier frame and coupled to the audio circuit.




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System and method for session sweeping between devices

An improved system and method are disclosed for peer-to-peer communications. In one example, the method enables an endpoint to sweep an ongoing communication session to another endpoint by transferring session information between the endpoints.




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Transmission power control on a wireless communication device for a plurality of regulated bands or component carriers

A wireless communication device is configured for performing uplink transmission power control. The wireless communication device includes a processor and instructions stored in memory. The wireless communication device performs uplink transmission power control for multiple regulated frequency bands or component carriers. The wireless communication device determines a total transmission power for at least one component carrier and allocates transmission power to at least one antenna.




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Touch sensitive screen information apparatus that includes close proximity or near distance radio frequency field communication

A touch sensitive screen mobile information apparatus having a wireless communication unit for wireless device discovery is herein disclosed. Close proximity wireless device discovery is enabled by wireless searching near distance via radio frequency field for a wireless device, receiving information from the wireless device over the near distance wireless communication, and storing the received information at the information apparatus for future wireless connections. Authentication or pairing of devices may be eliminated due to close proximity of the direct wireless device discovery. After wireless device discovery, the information apparatus and the wireless device may become locked or paired for subsequent wireless communication over any number of wireless communication protocols or standards (e.g., Bluetooth, IEEE 802.11, 2.4GHz) without the need to repeat wireless discovery or pairing. Examples of information apparatus include smart phones, digital camera, laptops, or information pads. Examples of wireless devices include televisions, audio output devices, or printers.




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Systems and methods for asynchronous re-modulation with adaptive I/Q adjustment

Various embodiments provide for systems and methods for signal conversion of one modulated signal to another modulated signal using demodulation and then re-modulation. According to some embodiments, a signal receiving system may comprise an I/Q demodulator that demodulates a first modulated signal to an in-phase (“I”) signal and a quadrature (“Q”) signal, an I/Q signal adjustor that adaptively adjusts the Q signal to increase the signal-to-noise ratio (SNR) of a transitory signal that is based on a second modulated signal, and an I/Q modulator that modulates the I signal and the adjusted Q signal to the second modulated signal. To increase the SNR, the Q signal may be adjusted based on a calculated error determined for the transitory signal during demodulation by a demodulator downstream from the I/Q modulator.




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Cover mechanism for opening and closing device

A cover mechanism is provided for an opening and closing device, which includes a fixed plate arranged at a first housing; a moving plate arranged at a second housing; a hinge arm that is arranged between the two plates and rotates to move the moving plate between a closed position where the first and second housings overlap and an open position where surfaces of the first and second housings are substantially coplanar; and a recess formed at the second housing that prevents the hinge arm from interfering with the second housing in the open position. The cover mechanism includes a cover arranged at the moving plate that covers the recess when the moving plate is positioned at the closed position and moves from the covering position by engaging with and being urged by the rotating hinge arm; and an urging part that urges the cover toward the covering position.




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Management systems for multiple access control entities

Methods and apparatus for managing multiple user access control entities or clients. For example, in one embodiment, a “wallet” of electronic subscriber identity modules (eSIMs) may be stored and used at a user device and/or distributed to other devices for use thereon. In another embodiment, a networked server may store and distribute eSIM to a plurality of user devices in communication therewith. A database of available eSIM is maintained at the wallet entity and/or at the network which enables request for a particular eSIM to be processed and various rules for the distribution thereof to be implemented. Security precautions are implemented to protect both user and network carrier specific data as the data is transmitted between networked entities. Solutions for eSIM backup and restoration are also described.




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Use of pre-handoff macro-carrier data for prioritization of carriers in femtocell frequency-hopping pilot beacons

Methods and systems are provided for prioritizing carriers in femtocell frequency-hopping pilot beacons. A femtocell receives registration requests from a number of mobile devices requesting to hand off service from a macro-network carrier to the femtocell. The femtocell identifies the macro-network carrier that each mobile device has handed off from. The femtocell then uses that information to prioritize future broadcasts of its frequency-hopping pilot beacon on those macro-network carriers on which the most mobile devices have handed off from. The prioritization could take the form of broadcasting more often on the higher priority one or more carriers per cycle, or broadcasting for a longer continuous period of time on the higher priority one or more carriers per cycle.




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Heterogeneous network (HetNet) user equipment (UE) radio resource management (RRM) measurements

Methods and apparatus for performing radio resource management (RRM) measurements in a heterogeneous network (HetNet) are provided in an effort to prevent failure of RRM measurement procedures in a dominant interference scenario. Several alternatives are provided for determining particular resources (e.g., subframes) to use for performing the RRM measurements, wherein the particular resources are based on cooperative resource partitioning between cells of the HetNet, wherein the cells may be of different types (e.g., macro, pico, or femto cells). These alternatives include, for example: (1) intra-frequency or intra-RAT (radio access technology) alternatives, which may involve transmitting resource partitioning information (RPI) in or deriving non-serving cell RPI based on the serving cell's RPI, as well as (2) inter-frequency or inter-RAT alternatives, where the RRM measurements may be performed during a measurement gap.




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Physical broadcast channel (PBCH) transmission for reliable detection of antenna configuration

Reliable detection of the configuration of transmit antennas includes obtaining a data for transmission, encoding the data, and modulating the data. During the modulating of the data, the data may be configured in such a way as to convey the configuration of the antennas through the modulation of the data. An antenna configuration is obtained by obtaining a representation of the antenna configuration, and masking the data with an error correcting code, where the mask corresponds to the antenna configuration.




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User detachment when a handover or change occurs in heterogeneous network

A method for user detachment when a handover or change occurs in a heterogeneous network is provided. The method includes: a user equipment (UE) is handed over or switched from a source network to a target network; a network element on a network side determines whether to detach the UE from the source network, and if yes, the network element on the network side detaches the UE from the source network. A system and a device for user detachment when a handover or change occurs in a heterogeneous network, and another method for user detachment when a handover or change occurs in a heterogeneous network are also provided.




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Wireless base station and method for emergency information delivery

In a wireless base station, a specific information receiver receives specific information delivered from a higher-level device to a wireless terminal. A specific information deliverer delivers the specific information to the wireless terminal via multiple physical channels activated in a wireless base station. Where a common channel via which information is periodically broadcast to multiple wireless terminals and a shared channel of which available radio resources are allocated to wireless terminals to transmit voice data and the like to the terminals are activated in the wireless base station, for example, the specific information deliverer can deliver the specific information using the common channel if the wireless terminal is in a standby state, and can deliver the specific information using the shared channel if the wireless terminal is in a communicating state.




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Method and device for initiating cell measurement

This document discusses a method and device for initiating cell measurement. An initiating condition for initiating the measurement of a Closed Subscriber Group (CSG) cell and/or a Hybrid cell is preset by the network side. The measurement of the CSG cells and/or Hybrid cells is initiated by a User Equipment (UE) when the initiating condition is satisfied. The UE automatically initiates the measurement of the CSG cell and/or Hybrid cell when the UE is close to its own footprint area or fingerprint area.




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Method of alleviating interference between cells in a multicell system and device for the method

The present invention discloses a method of a terminal to reduce interference between cells in a multicell system. In more detail, the method includes: receiving information on at least one adjacent base station from a serving base station; receiving a reference signal from the at least one adjacent base station on the basis of the information on the at least one adjacent base station; measuring interference for each transmitting antenna of the at least one adjacent base station by using the reference signal; and transmitting interference information on the each transmitting antenna to the serving base station.




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Method and arrangement in a communication system

The present invention relates to a method and an arrangement for reducing a state transition time from a power saving state for a user equipment (18) in a communication network. The state transition time is reduced by retaining in the user equipment (18) one or more information parameter, such as the radio network temporary identifier for a high speed downlink shared channel (H-RNTI), when performing a state transition to said power saving state so as to enable a time reduction when said user equipment switches back from said power saving state.




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Method for topology control using sectorized antennas in wireless networks

The invention concerns a method for optimizing antenna pattern assignment for a first wireless communication device forming a wireless network with at least one second wireless communication device, each of said communication device being equipped with a multi-sector antenna, an antenna pattern being a combination of said antenna sectors, said communication devices being adapted for sending a request and for receiving a response using a current antenna pattern assignment, said method comprising a step of: evaluating by said first communication device a first value;sending by said first communication device to said second communication device a broadcast request comprising said valuereceiving by said first communication device, a response to said broadcast request, said response being sent by said second communication device, said response depending on a second value evaluated by said second device;Switching or not, by said first communication device, to a new antenna sector assignment depending on said response; According to the invention the first value is evaluated by minimizing a first local function according to the received signal strength received by said first communication device having said current antenna pattern assignment and the second value is evaluated by minimizing a second local function according to the received signal strength received by said second communication device for its own current antenna pattern assignment.




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Wall curb for air treatment system

A device for reducing sound from an air treatment unit includes, in one embodiment, a wall curb. The air treatment system includes a supply opening and a return opening. The wall curb includes a frame portion defining an interior chamber. A partition divides the interior chamber into a supply plenum in a first portion of the interior chamber and a return plenum in a second portion of the interior chamber. A curb supply opening is formed through the perimeter frame in communication with the supply plenum. A curb return opening is formed through the perimeter frame in communication with the return plenum. The curb return opening is positioned such that airflow through the return plenum is non-linear and a sound absorbing material may be positioned on at least some inside surfaces of the return plenum.




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Modular draw out fan module with chimney design for cooling components in low voltage switchgear

A cabinet structure for a switchgear assembly. The cabinet structure includes a cabinet having upper and lower vents and a breaker cradle for holding a circuit breaker having primary disconnects for connecting the circuit breaker to bus bars. The cabinet further includes an air passageway located between the upper and lower vents, wherein the air passageway extends vertically through the primary disconnects and the cabinet. Further, the cabinet includes a fan module having at least one fan for drawing outside air through the lower vent, the air passageway and the primary disconnects for cooling the primary disconnects.




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Storage enclosure with pivotably mounted midplane assembly

The invention provides storage enclosure, comprising an enclosure housing; one or more drawers slidably arranged within the enclosure housing, wherein each drawer has a pivotably mounted midplane having storage media coupled thereto wherein the storage media are coupled to both sides of the pivotably mounted midplane.




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Air guide element and air guide element arrangement for an aircraft air conditioning system

An air guide element (10) for an aircraft air conditioning system comprises a housing (12), which has an air inlet opening (14) and an air outlet opening (16). The air inlet opening (14) and the air outlet opening (16) are disposed in such a way and the housing (12) is shaped in such a way that air that is fed to the air guide element (10) through the air inlet opening (14), as it flows through the air guide element (10), is deflected at an angle of ca. 45° to 135° relative to the direction of the air flow through the air inlet opening (14). A cross-sectional area of flow of the housing (12) that is disposed at right angles to the direction of the air flow through the air outlet opening (16) is subdivided into at least two regions (18a, 18b, 18c). In each of said regions (18a, 18b, 18c) an easily accessible, removable and exchangeable calibrating element (20a, 20b, 20c) is disposed, which is designed to generate, in the air flow passing through a region (18a, 18b, 18c) that is associated with a respective calibrating element (20a, 20b, 20c), a pressure loss that is constant over said region (18a, 1b, 18c).




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System and method for ventilating explosive regions of an aircraft

A system for ventilating an explosion hazard region of an aircraft includes a ram-air channel, which has an air inlet for feeding ambient air into the ram-air channel as well as an air outlet. The ram-air channel is devised to feed air to a device that is to be cooled on board the aircraft. A ventilation line has an air inlet for feeding air flowing through the ram-air channel into the ventilation line as well as an air outlet. The ventilation line is devised to feed air to a region of the aircraft that is to be ventilated. An accumulator is disposed between the ram-air channel and the air inlet of the ventilation line and is devised to convert the dynamic pressure of the air flow conveyed through the ram-air channel at least partially into static pressure for regulating flow through the explosion hazard region.