The bezel assembly for data reception, for use with a bill validator in a financial transactional device, includes a bezel housing and a data reception assembly. The bezel housing includes a customer-facing front portion and a back plate connectable to the bill validator that is mounted within the transactional device cabinet. The front portion includes an insertion/dispensing slot for receiving currency and a projecting protrusion forward of the casing. The forward-extending protrusion accommodates at least a portion of the data reception assembly. The bezel assembly can include a wireless communication function that is communicably connectable with a mobile device via a wireless communication method, a manual entry function, a biometric reader, one or more cameras for scanning and decrypting 2D barcodes and the like, thus enhancing the overall functionality of the financial transactional device.

The bezel assembly for data reception, for use with a bill validator in a financial transactional device, includes a bezel housing and a data reception assembly. The bezel housing includes a customer-facing front portion and a back plate connectable to the bill validator that is mounted within the transactional device cabinet. The front portion includes an insertion/dispensing slot for receiving currency and a projecting protrusion forward of the casing. The forward-extending protrusion accommodates at least a portion of the data reception assembly. The bezel assembly can include a wireless communication function that is communicably connectable with a mobile device via a wireless communication method, a manual entry function, a biometric reader, one or more cameras for scanning and decrypting 2D barcodes and the like, thus enhancing the overall functionality of the financial transactional device.

Systems, apparatuses, and associated methods for counting and sorting coins are described herein. In one embodiment, a coin processing machine can include a coin input region, a coin counting portion, and a coin sorting portion. The coin counting portion can include a first hopper that receives coins from the coin input region, and a coin discriminator that receives the coins from the first hopper and discriminates the coins to determine their value. The coin sorting portion can include a second coin hopper that receives the coins from the coin discriminator, and a coin sorter that receives the coins from the second hopper and sorts the coins into individual denominations.

A coin dispensing apparatus has a cabinet serving as an apparatus housing for the apparatus. The apparatus has a control means for controlling the apparatus. The apparatus further has a module for receiving, optionally validating and optionally sorting coins of different types and at least one dispenser for coins to be dispensed. The apparatus also comprises a filling compartment comprising a plurality of dispense locations. Each dispense location is adapted for receiving a portable coin receptacle for collecting dispensed coins from a specific dispenser. The apparatus is adapted to dispense a specific amount of coins under control of said control means to at least one portable coin receptacle at a specific dispense location in said filling compartment. The control means is adapted to only start the dispense operation at said specific dispense location if a portable coin receptacle is present at the location.

An apparatus for feeding a plurality of stacked currency bills into a currency handling device. The apparatus may comprise an input receptacle being configured to receive a plurality of stacked currency bills, the receptacle having a first side and a second opposing side, a front end, and an opposing back end. The apparatus further may comprise a first paddle rail disposed adjacent the first side and a first paddle assembly slidably coupled to the first paddle rail, the first paddle assembly having a portion configured to contact a stack of a plurality of bills residing in the input receptacle. The apparatus further may comprise a first resilient member coupled to the first paddle assembly, the first resilient member being configured to bias the first paddle assembly towards the front end of the receptacle, the first resilient member being configured to cause the first paddle assembly to move in a direction toward the front end of the input receptacle at a first average rate of speed when unrestrained and undamped. The apparatus further may comprise a first damping mechanism configured to slow the unrestrained, average rate of speed the first paddle assembly from the first average rate of speed to a second average rate of speed which is less the first average rate of speed.

Disclosed are an apparatus for setting a price for a multi-vending machine and a method thereof. The apparatus includes a price setting unit for inputting a price setting function, selecting a price setting column and inputting price information about the selected column; a control unit for controlling a price display of the selected column when the column is selected and the price information is input through the price setting unit; and a price display unit for displaying prices of products exhibited in a column according to a price display control of the control unit.

The bezel assembly for data reception, for use with a bill validator in a financial transactional device, includes a bezel housing and a data reception assembly. The bezel housing includes a customer-facing front portion and a back plate connectable to the bill validator that is mounted within the transactional device cabinet. The front portion includes an insertion/dispensing slot for receiving currency and a projecting protrusion forward of the casing. The forward-extending protrusion accommodates at least a portion of the data reception assembly. The bezel assembly can include a wireless communication function that is communicably connectable with a mobile device via a wireless communication method, a manual entry function, a biometric reader, one or more cameras for scanning and decrypting 2D barcodes and the like, thus enhancing the overall functionality of the financial transactional device.

An apparatus for identifying a counterfeit bill is provided. The apparatus includes a camera module configured to receive a captured IR image of a bill; a binary image generator configured to generate a binary image of the bill, based on the IR image; a distance value calculator configured to compare a predetermined area of the binary image with a predetermined area of a pre-stored real bill database corresponding to the predetermined area of the binary image; and a corrected image generator configured to generate a corrected image based on a result of the comparison.

Apparatus and methods are provided for a dual validator self-service kiosk (“SSK”). The SSK may include a first validator. The first validator may examine a deposit inserted into the SSK. The SSK may include a second validator. The second validator may examine a tangible item before the SSK dispenses the tangible item. The SSK may retract the tangible item if the tangible item in not collected by a customer. The second validator may examine the tangible item after being retracted by the SSK. The first validator may apply a first examination routine to the deposit. The second validator may apply a second examination routine before the SSK dispenses the tangible item. The second validator may apply a third examination routine to a tangible item retracted by the SSK.

Device for receiving coins improved in such a way that large amounts of coins can be received as well as separated reliably and quickly and such that the adverse influence of foreign matters introduced along with the coins on the coin separating function and/or on the performance of the coin separating unit may be reduced. The device includes an aperture for charging coins, a unit for separating coins and a feed unit for feeding coins which is provided with a guide face giving support to the coins during the feeding process and which is an active type feeder having a feed module (5) that is operable with the aid of an actuator means to feed coins toward the coin separating unit and that is designed such that the coins are transported toward the coin separating unit along said guide face.

The invention relates to a device for sorting coins, the diameter and thickness of which are within predefined size ranges.

A temporary storage in a medium storing device carries out ON/OFF monitoring of a jam sensor between a winding start position of a drum and a clamp point of a delivering roller. Accordingly, when bills are rewound in the reset operation, even when a relationship between a pulse count and a bill position becomes different from actual one, it is possible to detect, without using a pulse count, a jam between the winding start position and the clamp point. It is possible to more securely detect the abnormality in bill storing in comparison with the prior art.

A sensor device in a banknote processing machine comprising a transport device by means of which banknotes to be processed are transported past the sensor device, a cleaning device that cleans the sensor device or a transparent region of the sensor device, and a control device that controls the components of the banknote processing machine. The sensor device includes means for enlarging the spacing between the transport device and the sensor device. The control device controls the means and the cleaning device in such a way that the spacing between the transport device and the sensor device is enlarged by the means while the cleaning device cleans the sensor device.

A medium storage and feeding device and a medium processing device that may prevent occurrences of faults more reliably than the related art. A drum (21) is provided that winds up a banknote BL nipped by pairs of tapes (28L, 28R, 30L and 30R) together with the pairs of tapes. Torque limiters (25L, 25R, 27L and 27R) are separately provided at each of tape reels (24L, 24R, 26L and 26R). The torque limiters control torques between the tape reels and reel rotation axle shafts (22 and 23), such that tensions applied to the tapes between the tape reels (24L, 24R, 26L and 26R) and the drum (21) are constant. Thus, tensions on the tapes between the respective tape reels and the drum may be kept constant, banknote nipping stability may be improved, and occurrences of faults may be prevented more reliably than in the related art.

Apparatus and methods for a self-service kiosk (“SSK”) validator bridge are provided. The SSK may include a bridge linking a dispenser and a validator. The bridge may be configured to transfer a tangible item from the validator to the dispenser. The validator may examine the tangible item prior to a dispensing of the tangible item to a SSK customer. The tangible item may be retracted by the dispenser. The bridge may transfer the tangible item from the dispenser to the validator. The SSK may include an acceptor. The bridge may link the acceptor to the validator. The bridge may be configured to transfer a deposit from the acceptor to the validator. The validator may examine the deposit.

A reductant delivery unit (10) includes a fluid injector (12) and a flange (20) coupled with the fluid injector. An exhaust boss (28) has a surface (39) defining a through-hole (40) that communicates with a vehicle's exhaust flow path. The flange is coupled to a mounting surface such that the outlet of the fluid injector communicates with the exhaust flow path so as to control injection of urea solution into the exhaust gas flow path. A gasket (32) is sandwiched between the flange and the mounting surface. The gasket has a surface (37) defining a through-hole (38) therein that communicates with the through-hole in the exhaust boss to permit the urea solution to pass from the fluid outlet to the exhaust flow path. Gasket shielding structure (44) covers the surface defining the through-hole in the gasket to prevent the urea solution from contacting the gasket.

A seal assembly for sealing a pressure plate against an opening in a blowout preventer body has a seal groove formed in the pressure plate and a seal in the seal groove. The seal groove has a first groove portion adjacent to a sealing face of the blowout preventer, and a second groove portion extending past the sealing face into the opening of the blowout preventer body. The seal has a first seal portion in the first groove portion and a second seal portion in the second groove portion.

Apparatus and methods for temporarily sealing a pipe including apparatus and methods for creating a temporary airtight seal at the open end of a pipe in a plumbing or refrigeration system. One such apparatus includes a body, grommet, washer, and a nut. Multiple airtight seals are created including a first primary seal between an exterior of the pipe and the grommet and a secondary seal between the open end of the pipe and the washer. The grommet does not require teeth and the apparatus does not require adhesive, sealant, or any other type of similar materials. Use of the apparatus and methods greatly minimizes and/or eliminates the potential for marring or otherwise distorting the open end of the pipe, thereby facilitating reuse of same.

There is provided a stator seal structure in a uniaxial eccentric screw pump by which the abrasion resistance of sealing mechanisms is improved and the pumped fluid can be prevented from stagnating in the sealing mechanisms. The stator seal structure is provided with a pair of sealing mechanisms for sealing between a housing and an intake side end portion, and between the housing and a discharge side end portion of the stator. The pair of sealing mechanisms is provided with ring-shaped secured rings respectively secured to the housing. The secured rings are respectively attached with elastic bodies for ensuring contact pressures between the sliding seal surface of the stator and the sliding seal surface of the secured rings with the elastic forces of the elastic bodies and for sealing between the secured rings and the housing.

An actuatable wellbore isolation assembly comprising a housing generally defining an axial flowbore and comprising a mandrel portion, a first end portion, and a second end portion, a radially expandable isolating member positioned circumferentially about a portion of the housing, a sliding sleeve circumferentially positioned about a portion of the mandrel of the cylindrical housing, the sliding sleeve being movable from, a first position in which the sliding sleeve retains the expandable isolating member in a narrower non-expanded conformation to a second position in which the sliding sleeve does not retain the expandable isolating member in the narrower non-expanded conformation, and an actuator assemblage configured to selectively allow movement of the sliding sleeve from the first position to the second position.

A packer unit for an annular blowout preventer including an annular elastomer body including an elastomer having a unidirectional grain and a quantity of fiber longitudinally aligned with the grain of the elastomer. A method of forming a packing unit for a blowout preventer including forming a fiber reinforced elastomer by aligning fibers with a grain of an elastomer; cutting a portion from the fiber reinforced elastomer in the direction of the grain; loading the cut portion in a packing unit mold such that the grain of the fiber reinforced elastomer of the cut portion is parallel to a packing unit axis; and heating the loaded packing unit mold.

In sealing rings for a labyrinth seal that are arranged on a rotationally symmetrical component and in frictional contact with a stationary run-in layer, a part of the sealing ring (8) that contacts the run-in layer is in the form of a wear protection ring segment (15) that is built up on a truncated sealing ring (14) and which includes a metal matrix (16) with wear protection particles (13) embedded therein. The manufacture of the wear protection ring segment is carried out by laser build-up welding, wherein the proportion of wear protection particles contained in the metal powder flow supplied to the laser beam can be controlled and increased in an edge or tip region of the sealing ring.

A packing seal for a reciprocating pump of the type typically used in connection with oil and gas drilling operations is described. Generally, the seal includes a rigid L shaped cartridge that carries an outer wiper and an O-ring on an exterior wall and a recessed seal body on an interior wall. The recessed seal body is of dual durometer, and its lower portion is constantly urged against the cylinder wall in self-sealing fashion. The seals, cartridge and wiper may be formed from rigid and/or non-rigid materials having low coefficients of friction and physical properties comprising low abrasion and wear resistance. The seal provides an improved self-lubricated unitary seal that is convenient to replace in the field regardless of the torque delivered to the gland nut of a packing box, which contains the seal.

An air seal for a server rack installed in a data center which delivers cool air to the fronts of racks and removes warm air at the back, where one or more of the racks are elevated by wheels or legs. A seal support member of rigid plastic and of right angle cross section has a horizontal portion and a vertical portion. The horizontal portion is adhesively secured to a downwardly facing surface at the bottom front and/or back of the rack. The horizontal portion is recessed at opposite ends to accommodate wheels or legs at opposite sides of the rack. The vertical portion extends across the full width of the rack and projects downward. A sealing strip of EPDM foam is adhesively secured to the vertical portion and is held flexed against the floor, forming a seal against the flow of by-pass air underneath the rack.

A spacer and gasket assembly is shown for receipt between a static structure having an outer and inner surface and fastener holes therethrough and a removable structure having a base with fastener holes and an upper surface and a lower surface. The static structure and removable structure are engaged through a multiplicity of fasteners having a shaft diameter. The fasteners are adapted to apply a compression on the gasket between the static structure and the removable structure. The static structure and the removable structure have opposed, typically flat, facing walls. The spacer and gasket assembly comprising a substantially non-compressible spacer adapted for receipt between the static structure and the removable structure having a spacer thickness. A gasket has a deformable, flowable, elastomeric body and a skeleton having a skeleton thickness, the skeleton substantially integral with the body. The gasket has an uncompressed gasket thickness. The spacer and the gasket are adapted to be placed substantially between the facing walls of the static structure and the removable structure and the removable structure will compress and deform the gasket when the fasteners are torqued down.

An apparatus, system and method for sealing an electrical submersible pump assembly are described. An electric submersible pump (ESP) system for pumping solid-laden fluid comprises a thrust chamber of an ESP seal section, the thrust chamber sealed from well fluid on a downstream side by a stationary sand barrier and on an upstream side by a mechanical seal, the thrust chamber further comprising, a rotatable shaft extending axially through the thrust chamber, a head tubularly encasing the thrust chamber and threadedly coupled to a centrifugal pump intake, and a diamond-coated hydrodynamic bearing set inside the thrust chamber, wherein well fluid enters and exits the chamber through cross-drilled apertures in the head of the chamber, and wherein the well fluid forms a hydrodynamic film between the bearing set.

A sealing assembly for securely and insulatively maintaining a window or door and surrounding frame arrangement within an opening of a building wall. The sealing assembly comprises an elongated foam cell body member arranged within a channel of the surrounding frame arrangement of the window or door, wherein the elongated cell body member has a wall-opening-facing side. An elongated caulking band flange member is arranged in abutting relationship with a corner of the elongated foam cell body member. A thin flexible air fin is arranged in close environmental sealing relationship with the elongated foam cell body member and the opening in the wall of the building. A securement member is arranged to fasten the window or door surrounding frame arrangement, the elongated foam cell body member and the air fin, all to the building wall opening.

A seal assembly includes a first component and a second component of a gas turbine engine. The first component has a threaded portion. The second component interfaces with the threaded portion and together the threaded portion and the second component form a seal that restricts fluid flow between a first cavity and a second cavity of the gas turbine engine.

A side seal for a linear guide apparatus including a guide rail, a slider, and a plurality of rolling elements includes seal members formed of different materials, a holder plate and covers. Both seal members have recesses formed in a first face of a base and fitted with a protrusion of the holder plate. Both seal members have respective lips directed in opposite directions separated from each other. A tip of the lip of the first seal member is formed to have a shape in plane contact with the face of the guide rail. A tip of the lip of the second seal member is formed to have a shape in line contact with the face of the guide rail.

A seal assembly is for sealing between a housing and a rotary shaft includes an annular sealing member coupled with the housing and having inner and outer circumferential surfaces and a plurality of projections extending radially from the outer surface and spaced circumferentially about a central axis. Each projection has first and second axial ends and the plurality of projections define first and second projections. An annular biasing member is disposed about the sealing member outer surface and exerts an inwardly directed force on the sealing member. The biasing member has first and second ends and is arranged on the sealing member with the biasing member first end contacting the second end of each first projection and the biasing member second end contacting the first end of each second projection. As such, the biasing member extends axially and circumferentially between the first and second projections.

A fluidic processor includes a first sealing member having a first sealing face, a first compressive face and at least one first sealing member fluid conduit; a second sealing member having a second sealing face, a second compressive face and at least one second sealing member fluid conduit; the second sealing face of the second sealing member being sealingly and slidingly engaged in a substantially fluid tight manner with the first sealing face of the first sealing member; and at least one actuator mechanically engaging at least one of the first sealing member and the second sealing member, or an XY stage, or mechanism that provides motion in two axes on one sealing member only.

A method of sealing a passage in a body with a sealing composition comprising (a) a major proportion of a latex emulsion or colloid; and (b) a minor proportion of lauric acid or a laurate compound; and (c) at least one further selected additive, ideally a latex coagulation inhibitor, wherein said composition is pumped into said passage where it is set or coagulated to form a seal. Advantageously, the laurate compound is ammonium laurate and coagulation is conveniently induced by adjusting pH of the sealing composition from alkaline to acidic pH range. The method is particularly well suited to sealing in faulty formations or sealing sites and may be used in sealing within salt mines which contain brines.

Due to increasingly strict requirements and regulations, it is becoming more and more important for piston compressors to reduce the amount of leakage of operating medium through the seal of the piston rod. Conventional seals comprising packing rings and/or packing ring combinations always have a certain amount of leakage, both during operation and when at standstill, which is why they are not usable for certain applications, or the complexity involved in such a seal increases considerably. A further problem involving the seals of piston rods relates to transverse movements by piston rods during which the sealing action of the seal must be maintained. Proposed is, therefore, a sealing arrangement according to the principle of a sealing medium barrier providing that the sealing elements 8, 9 are arranged in radial direction at a distance relative to the radial end of the recess 10 that receives the sealing elements 8, 9.

The present application provides for ceramic collars and metal rings for active brazing in sodium-based thermal batteries. The ceramic collar may be an alpha-alumina collar configured for active brazing, and thereby sealing, to outer and inner Ni rings for use in NaMx cells. The portions of the alpha-alumina collar active brazed to the outer and inner Ni rings may be outwardly facing and include inwardly extending recesses. The portions of the outer and inner Ni rings active brazed to the outwardly facing portions of the collar may be inwardly facing. The alpha-alumina collar may include a greater coefficient of thermal expansion than each of the outer and inner Ni rings, and the alpha-alumina collar and outer and inner Ni rings may be configured such that a portion of the outer and inner Ni rings is deformed into the inwardly extending recesses of the alpha-alumina collar after active brazing thereof.

A radial shaft seal for separating two media includes two radial shaft sealing rings each including an axial surface and a sealing lip. The sealing rings are disposed with the axial surfaces facing one another and the sealing lips axially opposed to one another with a space between the sealing lips including a vent. At least one of the sealing rings includes clamping cams configured to grip an inner rim of the other sealing ring so as to join the sealing rings in a form-locking, rear-engaging position relative to each other.

A gasket for a vehicle is configured to improve performance of a turbocharger according to enhanced sealing performance. The gasket is disposed at a coupling portion of a cylinder head of an engine and an exhaust manifold adapted to supply exhaust gas from the cylinder head to a turbocharger.

A bearing isolator assembly comprises an inner support member, an outer support member, a resilient member, an elastomeric ring, and a support cap disposed over a bearing surface defined by the inner support member or the outer support member. A path of travel is defined between the inner support member and the outer support member. The resilient member is disposed between the inner support member and the outer support member and is configured to resist compression between the inner support member and the outer support member within a first portion of the path of travel. The outer support member defines a ring envelope, in which the elastomeric ring is disposed. The inner support member defines a ring compression surface, and the elastomeric ring is configured to resist compression between the ring compression surface of the inner support member and the ring compression surface of the outer support member within a second portion of the path of travel.

Disclosed is a system and method for decreasing airflow and improving ventilation within a tunnel, such as a railroad tunnel, including a path for movement of a vehicle (e.g., train) therethrough. The system has a plurality of air baffles mounted within the tunnel, each device comprising a body and a mounting device. Each mounting device positions each body inside and along the length of the tunnel between the entrance and the exit. The air baffles are configured to restrict airflow at least in part in a longitudinal direction of the tunnel, thereby increasing a relative difference between a vehicle speed and air speed in a tunnel annulus when the vehicle passes through the tunnel. The restriction (e.g., decrease) of airflow in the tunnel reduces the piston effect resulting from the vehicle or train passing through, thus reducing emissions and heat generated by the locomotives in the tunnel.

A fluid line includes a resonator having an inner part and a blow-molded outer part defining an inner surface. The inner and outer parts are fixedly connected. The inner part is an injection-molded part having first and second radial collars spaced axially apart from each other. The inner part defines a radial circumference with a plurality of orifices formed therein. The inner and outer parts are axially one within the other so that there is no throughflow of secondary air between the first and second radial collars and the inner surface of the outer part. The inner and outer parts have a common end whereat they are airtightly connected to each other. The inner part, the radial collars and the inner surface of the outer part conjointly define two resonant chambers operatively connected to fluid in the fluid line via the orifices.

A silencer (1) for an exhaust gas installation of an internal combustion engine, particularly of a motor vehicle includes a housing (2), with a circumferential shell (3) closed in the peripheral direction (5) and an end base (6) at each of two longitudinal ends, spaced apart in an axial direction (4). A silencer insert (15) is arranged in the housing (2) and has an inlet pipe (8) for exhaust gas and an outlet pipe (10) for exhaust gas. The shell (3) has, in the peripheral direction (5) has at least one inlet shell-segment (11) and one outlet shell-segment (12). The inlet shell-segment has at least one inlet opening (7), into which such an inlet pipe (8) is inserted from the inside. The outlet shell-segment (12) has at least one outlet opening (9) into which such an outlet pipe (10) is inserted from the inside.

The attenuation and other optical properties of a medium are exploited to measure a thickness of the medium between a sensor and a target surface. Disclosed herein are various mediums, arrangements of hardware, and processing techniques that can be used to capture these thickness measurements and obtain dynamic three-dimensional images of the target surface in a variety of imaging contexts. This includes general techniques for imaging interior/concave surfaces as well as exterior/convex surfaces, as well as specific adaptations of these techniques to imaging ear canals, human dentition, and so forth.

A communication system for communicating with at least one loudspeaker is described where the loudspeaker is connected to audio equipment over standard two-wire speaker wire operable to carry an audio signal. The communication system includes a master node in electrical communication with a signal path carrying the audio signal between the audio equipment and the loudspeaker, the master node also including an interface with the audio equipment, a data encoder operable to encode data signals, a data transceiver operable to place the data signals onto the audio signal at frequencies above audio frequencies. The communication system also includes at least one slave node in electrical communication with the audio signal and each loudspeaker, the slave node including a data transceiver operable to receive data signals from the master node, a data decoder, and an interface able to communicate with the loudspeaker.

A honeycomb structure dial includes cells in which septums are located to provide acoustic dampening. The cells are formed by at least our walls wherein at least two of the walls are substantially parallel to each other. The septums include warp fibers and weft fibers that are substantially perpendicular to each other. The septums are oriented in the honeycomb cells such that the weft fibers and/or warp fibers are substantially perpendicular to the parallel walls.

Measurement data is received from first and second seismic sensors, where the first and second seismic sensors are oriented in opposite directions. Each of the first and second seismic sensors has a sensing element responsive to pressure and particle motion. The signals can be combined to remove the particle motion component of the measurement data and obtain pressure-only data. Alternatively, the signals can be combined to deghost the received measurement data.

A bone conduction hearing aid device comprising a vibrator configured to vibrate in response to sound signals received by the device. The device further comprises a housing mass forming a housing for one or more operational components of the device, wherein the housing mass is attached to the vibrator so as to move in response to the vibration. The device also comprises a coupling configured to attach the device to a recipient so as to deliver the generated mechanical to the recipient's skull.

A directable sound-absorbing panel comprising a sound-absorbing panel, a fixing member which can be fixed to said sound-absorbing panel, an arm and an articulated joint between said fixing member and said arm, is described. An assembly of directable sound-absorbing panels is also described, said assembly comprising a plurality of sound-absorbing panels, a corresponding plurality of fixing members, a corresponding plurality of arms, a corresponding plurality of articulated joints between each arm and each fixing member, and a fixing bar to which at least a part of said plurality of arms is fixed.

An image forming apparatus includes a drive source configured to drive a member for forming an image on a recording material, a frame of the image forming apparatus including a planar portion on which the drive source is mounted, wherein a plurality of through holes is formed on the entire planar portion of the frame, and a sheet member configured to cover at least a portion of the plurality of through holes.

Systems and methods for optimizing low frequency output of marine sources are described. The marine source arrangements and associated methods disclosed herein seek to fully frequency lock bubbles emitted by airguns in close proximity to one another. In this manner, larger effective bubble volumes can be achieved, thus increasing low frequency output.

An audio performance system for use during an event including a shipping container containing at least a first electroacoustic device. A lifting device forms a first portion of the shipping container, the lifting device configured to movably secure the first electroacoustic device between a first position for transport of the container and a second position for the event. A second portion of the shipping container is configured to be manually removable. A third portion of the shipping container is configured to positionably secure a second electroacoustic device for the event.

The present invention relates to an assembly structure of a diaphragm for a microspeaker. The present invention discloses a bonding structure of a diaphragm for a microspeaker, the boding structure comprising: a suspension including a central portion, an outer peripheral portion, and a connecting portion connecting the central portion and the outer peripheral portion; and a side diaphragm including an inner peripheral portion and an outer peripheral portion, which are attached to the central portion and outer peripheral portion of the suspension, respectively, and a dome portion, which projects between the inner peripheral portion and the outer peripheral portion, wherein the suspension and the side diaphragm are attached by thermal compression.