Abstract: A compressing element, devices for using such a compressing element and methods of use are provided, in which the compressing element has: a upper surface provided with an inlet and an outlet; a lower surface; an at least partially hollow interior provided between the upper surface and the lower surface, the hollow interior being connected to the inlet and the outlet; the hollow interior being provided with: one or more fluid flow constraining surfaces provided by one or more walls of the follow interior; and one or more fluid flow control elements provided in the hollow interior, the one or more fluid flow control elements being additional to the one or more fluid flow constraining surfaces provided by the one or more walls of the hollow interior. The arrangement of inlet, outlet, fluid flow constraining surfaces and fluid control elements provides for improved cooling of the compressing element, for instance when used to press molten metal processing by-products to extract molten metal.

Abstract: A vessel for containing direct reduced iron (DRI), such as a reactor for the production of DRI, a bin or a hopper or other container for storing or feeding DRI to melting furnaces or briquetting machines, includes at least an upper zone, defined by a first lateral wall having a substantially cylindrical tubular shape, and a discharge zone, positioned below the upper zone and defined by a second lateral wall having a substantially truncated cone shape converging toward a lower discharge aperture. The second lateral wall has an internal surface at least partly lined by an internal lining.

Abstract: Systems, devices and methods for effluent or flux removal from a gas are disclosed. In one aspect the system includes at least one tube having a body including an interior passageway enabling fluidic flow therethrough; and a plurality of openings disposed along a length of the body in fluidic communication with the interior passageway, thereby enabling withdrawal of the gas laden with the effluent exterior to the at least one tube through the plurality of openings into the interior passageway of the at least one tube.

Abstract: A device for producing expanded granulated material from grains of sand with an expanding agent includes a furnace with a furnace shaft, which has upper and lower ends. A conveying section extends between the ends and passes through separately-arranged heating zones in a conveying direction. At least one feeder charges at least the unexpanded material into the furnace shaft at one end toward the other end. At least one rotatable shaft insert is arranged at least in sections in the furnace shaft and has at least one scraper blade forming with an inner wall of the furnace shaft at least one gap having a gap width and being designed, during rotation of the at least one shaft insert in an operating state of the device, to remove caking on the inner wall at least in sections if a thickness of the caking is greater than the respective gap width.

Abstract: A heat exchanger for heat exchange between a first fluid and a second fluid has a plurality of tube sections, each having; an interior for passing the first fluid; an exterior for exposure to the second fluid; a first leg; a second leg; and a turn joining the first leg to the second leg. A has: fiber members passing between legs of the tube sections; and an end plate.

Abstract: A coaxial heat transfer tube (100), comprising a first inner heat transfer tube (110) having straight parts (111, 113, 115, 117) and curved parts (112, 114, 116), a first outer heat transfer tube (120) having straight parts (121, 123, 125, 127) and curved parts (122, 124, 126). The first outer heat transfer tube (120) radially surrounds the first inner heat transfer tube (110) at least within the first primary straight part (121) and the first primary curved part (122). Thermally insulating material (530) has been provided in between a curved part (122) of the first outer heat transfer tube (120) and a curved part (112) of the first inner heat transfer tube (110). Neither straight part (121) nor a curved part (122) of the first outer heat transfer tube (120) comprises a longitudinal seam. A method for making a coaxial heat transfer tube (100).

Abstract: In one general aspect, a microelectronics cooling device can include a microchannel heat exchanger within an enclosure that houses the device at a heat absorbing end and another heat exchanger which is optionally also a microchannel heat exchanger at a heat sink end outside the enclosure. One or more pipes flowably connect the two ends for transporting liquid working fluid to the heat absorber and vaporized working fluid to the heat sink. The heat pipes may also be used to transfer heat outside a room that contains the electronic devices.

Abstract: A wick sheet for a vapor chamber is sandwiched between a first sheet and a second sheet of the vapor chamber that encloses a working fluid. The wick sheet for a vapor chamber includes a sheet body having a first body surface and a second body surface, a penetration space that penetrates the sheet body, a first groove assembly that is disposed on the second body surface and that communicates with the penetration space, and the second groove assembly that is disposed on the first body surface and that communicates with the penetration space. The flow channel cross-sectional area of a second mainstream groove of the second groove assembly is greater than the flow channel cross-sectional area of a first mainstream groove of the first groove assembly.

Abstract: The present application discloses two-phase cooling devices that may include at least three substrates: a metal with a wicking structure, an intermediate substrate and a backplane. A fluid may be contained within the wicking structure and vapor chamber for transporting thermal energy from one region of the thermal ground plane to another region of the thermal ground plane, wherein the fluid may be driven by capillary forces within the wicking structure. The intermediate substrate may form narrow channels within the wicking structure, providing high capillary forces to support large pressure differences between the liquid and vapor phases, while minimizing viscous losses of the liquid flowing in the wicking structure.

Abstract: Embodiments relate to a system and method for dissipating heat from a heat generating component. The system and method an assembly of a fenestrated housing and a plenum and positioning of the assembly relate to the heat generating component. The plenum accommodates a fluid mover relative to the fenestrated housing. The fenestrations function to support multi-directional fluid flow created by the fluid mover and accommodated by the fenestrations, which function as ports to direct fluid with respect to the heat generating component.

Abstract: A flow path member for a heat exchanger includes: an inner cylinder capable of housing a heat recovery member through which a first fluid can flow; an outer cylinder having a feed port capable of feeding a second fluid and a discharge port capable of discharging the second fluid, the outer cylinder being disposed so as to be spaced on a radially outer side of the inner cylinder such that a flow path for the second fluid is formed between the outer cylinder and the inner cylinder; a feed pipe connected to the feed port; and a discharge pipe connected to the discharge port. The feed port and the discharge port are provided so as to be located in a distance of less than half the circumference of the outer cylinder in a circumferential direction.

Abstract: A heat exchanger includes a vapor collection pipe, a liquid collection pipe, and an exchange pipeline. The exchange pipeline includes a condensing section, an evaporation section, and a transition section. An upper end of the condensing section is connected to the vapor collection pipe. A lower end of the condensing section is connected to a first end of the transition section. An upper end of the evaporation section is connected to a second end of the transition section. A lower end of the evaporation section is connected to the liquid collection pipe. The evaporation section and the condensing section respectively extend in directions opposite to each other.

Abstract: A heat exchanger includes a first end opposite a second end, a first side opposite a second side, a first layer, and a second layer. The first side and the second side extend from the first end to the second end. The first layer includes an inlet at the first end and an outlet at the second end of the heat exchanger. The second layer includes a first passage at the first end of the heat exchanger and extending from the first side to the second side and a second passage adjacent to the first passage. The second passage extends from the first side to the second side. The second layer further includes a third passage extending from the second end toward the second passage. The first passage is fluidically connected to the third passage proximate the second end and the third passage is fluidically connected to the second passage.

Abstract: A tube body for a heat exchanger includes an outer cover and intermediate walls arranged in the outer cover, which within the outer cover limit passages that are separated from one another in a width direction and can be flowed through in a longitudinal direction. An increased stability of the tube body with reduced weight at the same time is obtained in that a wall thickness running in the width direction of at least one inner intermediate wall, which is arranged between in the width direction outer intermediate walls, that is greater than the wall thickness of the respective outer intermediate wall. In addition, a heat exchanger having such a tube body, a motor vehicle and a building having such a heat exchanger are provided.

Abstract: An active vortex generator adapts to a flow rate of fluid through and/or a heat flux applied through a heat exchanger channel to improve the heat transfer rate of the heat exchanger. In some implementations, the movement of the active vortex generator may be induced by the fluid flow through the heat exchanger channel. In some implementations, the movement of the active vortex generator may be induced through an externally applied force on the active vortex generator. An actuated active vortex generator is particularly suited to heat exchangers with high heat flux dissipation requirements. Locating an actuated active vortex generator proximate to such high heat flux dissipation locations provides for improved heat transfer that can be activated when needed, such as upon operation of a high heat flux component.

Abstract: This invention relates to a light weight microtube heat exchanger that meets all the performance requirements of more conventional plate-fin heat exchangers (thermal performance, shock and vibration, and weight, etc.) while providing significant improvements with respect to air-side fouling due to sand and dirt or weight reduction.

Abstract: A thermal management system for a body to be exposed to solar radiation includes an infrared radiating element and a solar-scattering cover disposed on or integrated with the infrared radiating element. The thermal management system further includes a thermal storage sub-system in fluid connection with a solar panel via thermal interconnections.

Abstract: The disclosure discloses a cooling system and an automatic coolant injection method for the cooling system. The cooling system includes a heat exchanger; a converter; a liquid cooling pipeline; a coolant tank with a liquid-level sensor; an injection pump for injecting coolant from the coolant tank into the liquid cooling pipe; and a control unit. When liquid level of the coolant tank reaches an upper threshold, the injection pump injects coolant into the liquid cooling pipeline. When pressure of the coolant in the liquid cooling pipe reaches an upper static liquid pressure threshold, the control unit turns off the injection pump, and executes the turning-on and turning-off operations of the circulation pump with a preset circulation period. The circulation pump forces the coolant to circulate in the liquid cooling pipeline when being turned on.

Abstract: In one aspect, a cooling tower system is provided that includes an evaporative heat exchanger, a sensor configured to detect a parameter of evaporative liquid distributed onto the evaporative heat exchanger, and an evaporative liquid treatment system. The cooling tower system further includes a controller having a normal operating mode wherein the controller operates the evaporative liquid treatment system to treat the evaporative liquid upon a determination of inadequate evaporative liquid quality based at least in part on the parameter of the evaporative liquid. The controller has a failsafe operating mode wherein the controller changes operation of the cooling tower upon a determination that the operation of the evaporative liquid treatment system is unable to remedy the inadequate evaporative liquid quality.

Abstract: The invention relates to a plate (105) forming part of a heat exchanger and intended to delimit at least one channel (111) for circulation of a fluid. The plate (105) extends principally along an axis of longitudinal extent (A1). The plate (105) comprises at least one bottom (106), at least one first lateral raised edge (19a) which is inscribed within a first plane (P1) intersecting the axis of longitudinal extent (A1), and at least two openings (110) which are configured such that the fluid enters and exits the channel (111), respectively. The bottom (106) is provided with a rib (113) which extends longitudinally from the first lateral raised edge (109a). The rib (113) is positioned between the two openings (110). The rib (113) is of a sinuous configuration.

Abstract: The invention relates to a sealing device (3) for a motor vehicle heat ex-changer (4) consisting of a plate (5) comprising a central cavity (12) configured to allow the passage of a tube of the heat exchanger, characterised in that at least two opposite end edges of said plate (5) are each provided with snap-fastening means (8), each capable of engaging with complementary snap-fastening elements integrated into a recess located in a support frame of the heat exchanger, and characterised in that the sealing device (3) comprises an elastically deformable sealing means (14) arranged around the central cavity (12) formed in the plate (5).

Abstract: One example control element for controlling a breechblock stop lever that can move about a first axis of rotation, which can be moved between a standby position for releasing a breechblock carrier and a retaining position for retaining the breechblock carrier, includes a first arm (15) that can rotate about a second axis of rotation (B), a first control section on the first arm, the first control section including a first contact surface (11a) and a second contact surface (11b) facing away from the first contact surface (11a), which can be rotated about the second axis of rotation (B) for the control element (10) by a control curve (36, 37, 38) on the breechblock carrier (30); and a second control section (13) on the first arm, wherein the second control section can be controlled by a control surface (55a) on a trigger (50). Other examples are possible.

Abstract: A modular system for preventing the unauthorized use of a firearm is provided. The system includes a safety module that is configured to attach to a firearm using a standard rail mount found on most firearms. The safety module includes a trigger bar that is configured to extend from the safety module to behind or through the side of the trigger of the firearm. The safety module further includes a locking mechanism that, in a first state, prevents the trigger bar from moving rearward and thereby also prevents the trigger from being pulled. The locking mechanism further includes a second state where the trigger bar is allowed to move with the trigger thereby allowing the trigger to be pulled.

Abstract: Provided is a firearm stock having a butt stock assembly and a lack mechanism. The butt stock assembly pivotable between an extended position and a folded position. The latch mechanism is operable to selectively lock the butt stock assembly in the extended position. The latch mechanism has a latch lever rotatable between open and locked positions and has a tooth that engages a cammed socket. Moving the latch lever toward the locked position tensions the latch lever to bias the butt stock into the extended position without mechanical play.

Abstract: A trigger unit for a firearm, including a hammer rotatable about a hammer axis and prestressable by a hammer spring, a trigger lever rotatable about a trigger axis, the trigger lever has a trigger and a trigger rear, which receives at least one interrupter. A sear is rotatably mounted about a sear axis and prestressable by a sear spring. The sear axis and the trigger axis coincide, and the sear has a bearing recess for receiving and limited rotation about a disconnector axis of a disconnector pivot formed on the underside of the disconnector, the bearing recess being formed surrounding the disconnector pivot at least partially in the direction of rotation about the disconnector axis.

Abstract: The present disclosure is directed to firearms that can receive and fire bullets from ammunition with different cartridge case sizes. For example, the receiver may fire a bullet from either a short cartridge, a medium cartridge, or long cartridge after the short, medium, or long cartridge is received by a receiver of the firearm. This firearm may include a receiver portion and a bolt portion that lock together at different relative locations when cartridges of different lengths are received by the receiver portion. The receiver portion may include a first type of alignment retention features (e.g. protrusions) and the bolt portion may include a second type of alignment retention features (e.g. recessions). Once a firearm cartridge is located inside of the firearm, it may be fired based on the receiver and the bolt portions being locked together via physical engagement of the different types of alignment retention features.

Abstract: A suppressor for a firearm includes a baffle stack having an outer surface, the baffle stack comprising a plurality of baffles that define an inner chamber extending along a central axis of the baffle stack and a projectile pathway through the baffle stack along the central axis. An outer housing is around the baffle stack and defines an outer volume between the outer housing and the baffle stack. Structures and openings in the suppressor promote a sinuous gas flow path through the inner chamber that enhances turbulent flow within the suppressor and reduces backpressure as desirable when used with a machine gun.

Abstract: The invention provides systems and devices for an easily replaceable bearing system for a gunner stand of a vehicle. The bearing system reduces vibration from the vehicle on the bearings, decreases wear and tear, and reduces audible rattling. The bearing system includes a shuttle having a backplate and protruding geometry. Biased members are removably attached to the protruding geometry and are configured to create tension on rails of a gunner stand, holding the bearing system within the rails.

Abstract: A handle for use with a firearm cleaning rod may include an ergonomic handle. The ergonomic handle comprises a core having a top end, a grip, and a base; a bolster disposed on the top end provides an additional point for a user to apply force to the cleaning rod when cleaning a firearm. Below the bolster is the grip, which consists of a palm-engaging section and a finger-engaging section, where an inward curvature exists on the palm-engaging surface below the bolster; both sections may be covered with a textured overall for improved gripping by a user. Within the base is a housing that contains a connector for the purpose of securely connecting a cleaning rod to the ergonomic handle. The cleaning rod may include an accessory end for connecting firearm barrel cleaning accessories.

Abstract: A linear encoder may be used to accurately determine a number of cartridges within a magazine. Further, using a set of magnetic sensors within a buffer tube of a firearm, it is possible to determine whether a cartridge is loaded within a chamber of the weapon and/or whether the firearm is jammed. The determination of cartridges within the magazine in conjunction with the determination of whether a cartridge is in a chamber of a firearm can give a user an accurate ammunition count. Further, the use of the linear encoder makes it possible to accurately determine the cartridge count when different cartridges are loaded into the magazine or when the magazine degrades in quality over time. Moreover, the ability for magazines to communicate with a firearm enables a user to determine a total available ammunition to the user in a single display without individually checking each magazine.

Abstract: The present disclosure provides ammunition magazines and followers for use in a firearm, such as an AR15 or M16 firearm, that prevent contact between the bullet portion of a cartridge and interior surfaces of the firearm's receiver portion during transfer of the cartridge from the magazine to the firearm's chamber.

Abstract: A single-use magazine for a firearm. The disposable magazine for a firearm has a first portion and a second portion. The first portion comprises receiving members and the second portion comprises locking members. The first portion is configured to be permanently locked to the second portion via the receiving members and the locking members. A cavity formed between the first portion and the second portion comprises a plurality of bullets. The disposable magazine is configured for one-time use.

Abstract: A multi-channel magazine for a toy gun includes a magazine body, a dividing unit formed within the magazine body, and a bullet pressing unit. The dividing unit cooperates with the magazine body to define at least one storage channel, a plurality of first narrow channels in spacial communication with the storage channel, and a converging channel in communication with the first narrow channels and a bullet outlet. Each of the first narrow channels and the converging channel is configured to allow only one bullet to pass through. The bullet pressing unit is mounted on the magazine body to press the bullets from the storage channel through the first narrow channels and discharge the bullets from the converging channel. The bullets can be moved and converged gradually to a one-by-one arrangement to the bullet outlet so as to facilitate smooth pressing and discharging of bullets and increase the capacity of magazine.

Abstract: An automatically cocking air gun includes a cocking mechanism including a compression tube, a compression piston, and a spring. An actuator assembly is coupled to the compression tube to selectively move the compression tube between a firing position and a cocking position. The actuator assembly includes a lead screw and a lead screw nut driving a carriage to move the compression tube.

Abstract: A hop-up device for an airsoft gun allows a user to adjust the tension applied to a BB during the chambering of the BB in the airsoft gun. The hop-up device has an adjustable tension adjustment sleeve configured to constrict a desired amount around the BB. The tension adjustment sleeve provides tension on the BB when the air nozzle is seating, or chambering, the BB in the bucking lips of a rubber bucking prior to firing. By adjusting the tension adjustment sleeve, the user can increase or decrease the bucking lip tension on the BB to reduce or essentially eliminate the adverse effects from manufacturing tolerances, wear, and the like. These adverse effects can cause double feeding of the BBs, jamming, inconsistent firing, slow firing, midcap syndrome (the feed spring in the magazine is too strong and forces BBs against the air nozzle with excessive force), and the like.

Abstract: Nozzles, nozzle assemblies, and blaster assemblies featuring interchangeable nozzles having externally powered electrical components or accessories. A nozzle assembly may include a body. The body may have a projectile opening defined therethrough. The nozzle assembly may further include an electrical component that is attachable to the body. The nozzle assembly may further include an electrical connection member coupled to the body and the electrical component. The electrical connection member may be configured to electrically connect the electrical component to the blaster.

Abstract: In some embodiments, an archery bow comprises a riser, a limb member and a support member. The limb member is supported by the riser at a first location. The limb member supports an axle at a second location. The support member is supported by the riser and arranged to support the limb member. The support member contacts the limb member at a contact location. The contact location is oriented between the first location and the second location along the length of the limb member.

Abstract: A dart pistol utilizes an assembly of a pistol body, a launch channel, a carriage, a mainspring, an operating bar, an engagement feature, a trigger member, and a retainer pin to adapt a conventional game of throwing darts into a shooting sport. The launch channel is formed into the pistol body such that the carriage, mainspring, and operating bar are slidably mounted between a fore body end and a rear body end. The mainspring is connected between the carriage and the fore body end to impart a launching force to at least one projectile via the carriage. The retainer pin is laterally mounted into the channel to capture the engagement feature of the operating bar until dislodged by the trigger member. The trigger member is pivotably mounted to the pistol body, operatively coupling the trigger member to the operating bar to fire the dart pistol.

Abstract: A sling slider element has a frame defining an aperture, a rotor pivotally connected to the frame, the rotor received in the frame aperture, the frame and rotor configured to receive a strap, and the rotor movable with respect to the frame between a disengaged position in which the strap is free to slide with respect to the rotor and an engaged position in which the strap is engaged to the frame and rotor. The frame may include a pivot pin spanning the aperture. The frame aperture may be rectangular, and the rotor may be rectangular. The frame may be a planar body, and the rotor may have a planar body portion coplanar with the frame when in the engaged position. The rotor may have a handle element extending away from the planar body portion. The handle element may extend perpendicularly from the planar body portion.

Abstract: A handgun enables the adapter plate for mounting the dot-sight to be securely and easily assembled into the slide even without using a fastening member such as a screw. The handgun equipes with the adapter plate and the slide for mounting the dot-sight with the improved assembly structure, wherein the adapter plate slides toward one side and is assembled into the slide, and then a projection lever restricts sliding of the adapter plate in an opposite direction such that the adapter plate is not unintendedly detached from the slide.

Abstract: Rifle scopes with a locking feature including a body having an internal movable optical adjustor adapted to shift an image generated by the riflescope, a knob connected to the body for rotation about a knob axis and operably connected to the optical adjustor to position the optical adjustor based on a rotational position of the knob, an indicator skirt rotatably engaged to the body and threadedly engaged to the knob, the indicator skirt being operable to move axially with respect to the knob such that the axial position of the indicator skirt is based on the rotational position of the knob, and the knob including a knob stop surface and the indicator skirt including a skirt stop surface, wherein the knob stop surface and the skirt stop surface are configured to positively contact each other to establish a limit of rotational travel of the knob.

Abstract: A targeting system operable to be used with a bow to assist an operator with striking a target with an arrow. The targeting system may comprise a processor, a target sighting window, a ranging module and a projector. The processor may be configured to control the projector to project a first sighting element onto the target sighting window to select the target, determine a range to the selected target based on the reflected beam, determine an orientation of the bow based at least partially on the determined range to the selected target, determine a location on the target sighting window to present a compensated sighting mark corresponding to the determined orientation, and control the projector to present the variable compensated sighting mark on the target sighting window.

Abstract: An operating device and method for remotely controlling an arming device. The method includes confirming a tracking image at each firing time point of a laser beam transmitted by the range finder; based on an image correlation value of a target locked on by a tracking gate in the tracking image exceeding a threshold value, determining that the target is normally locked on; determining whether the laser beam from the range finder hits the target determined as being normally locked on based on a center value of the tracking image and a center value of the tracking gate; and based on the laser beam from the range finder hitting the target normally locked on, determining a range measurement value measured by the range finder as a true value of the target and determining other range measurement values as wrong measurement values.

Abstract: The system and method of projectile flight management using a combination of radio frequency orthogonal interferometry for the long range navigation and guidance of one or more projectiles that does not need to be accurate all the way to the ground based on the use of larger artillery. The system provides for more accurate targeting, especially in GPS-denied and GPS-limited environments.

Abstract: A non-lethal dazzling device includes a laser operable in the visible spectrum. The laser can be a relatively low-powered laser, such as a laser having a maximum output power of 2.5 mW, or it can be a higher-powered laser with a drive circuit that lowers the maximum output power to a safe level based on the range of the hostile target from the laser. In certain embodiments, the disclosed non-lethal dazzling device can be coupled to the bridge of a binocular device.

Abstract: An electronic irritation device includes a plurality of electronic irritation signal modules. Each of the modules has at least one emitter for emitting optical or acoustic irritation signals, and additionally a connection device for coupling the plurality of irritation signal modules to one another and an unlocking device for automatically unlocking the connection device in order to decouple the plurality of irritation signal modules from one another and thereby distribute them spatially. Distributing a plurality of irritation signal modules makes it possible to increase the probability of an irritation effect upon deployment of a single irritation device.

Abstract: An armored plate assembly can include a base plate, a gap layer, a containment structure around edges of the gap layer, and a coating that can be applied to an assembly of the base plate, the gap layer, and the containment structure. In some embodiments, the base plate can be formed from steel, the gap layer can be formed from natural cork, the containment structure can be formed from a polymer, and the coating can be formed from polyurea.

Abstract: According to a first aspect of the present invention, there is provided a munition assembly, arranged to be launched from a gun, the assembly comprising: a carrier for a submunition, the carrier comprising a cavity in which the submunition is located; and a submunition, carried by the carrier in the cavity, the submunition arranged to be controllably expelled from the carrier; the submunition comprising: a submunition explosive charge; and a submunition fuze, wherein: the munition assembly is adapted to be launched, into the air, from a gun barrel, where the submunition is then arranged to be controllably expelled from the carrier and enter a body of water; and the submunition fuze is adapted to trigger the submunition explosive charge under water.

Abstract: A projectile for use in a firearm ammunition cartridge, and a method of forming the projectile the projectile including a core, a jacket in which the core is disposed, the jacket having a closed rearward end and an open forward end, the forward end tapering inwardly toward a longitudinal centerline of the jacket to define an ogive portion of the projectile, and extending past a forward end of the core to form an open space inside the jacket between the forward end of the core and the forward end of the jacket, and a plurality of ventilation ports formed proximate the forward end of the jacket, each of the ventilation ports having a first opening on an inner surface of the jacket defining the open space, and a second opening on an outer surface of the jacket.

Abstract: A ceramic bullet which is lead-free, explosive free bullets having improved and novel material and processes for producing bullets.