Abstract: An improved heat exchanger assembly and method. First and second plates made of a predetermined thermally conductive material are configured when mated to form a hermetically sealed vapor chamber. A wick made of the same predetermined thermally conductive material resides in the vapor chamber forming a gas chamber.

Abstract: A heat pipe has a heat receiving portion that is to be thermally connected to a heat generating member so as to absorb heat from the heat generating member. The heat pipe includes a sealed flat container; a wick structure housed inside the flat container; and a working fluid sealed inside the flat container. In at least one cross section of the flat container, the wick structure includes a first wick member and a second wick member disposed vertically, the wick structure also has a first wick part and a second wick part respectively disposed in the lengthwise direction of the flat container, the second wick part having a maximum width that is wider than a maximum width of the first wick part. The second wick part is disposed in the heat receiving portion of the heat pipe.

Abstract: A cooling system includes a first stage heat reservoir arranged to absorb heat from a heat source. Heat is transferred from the first stage heat reservoir to a second stage heat reservoir. The first stage heat reservoir includes a material with a heat capacity lower than that of the second stage heat reservoir but with a thermal conductivity higher than that of the second stage heat reservoir. Heat transfer structure increases heat transfer rate from the first stage heat reservoir to the second stage heat reservoir.

Abstract: An evaporator includes multiple cold storage mechanisms for lowering a temperature of a cold storage material housed inside a cold storage container by heat exchange with a refrigerant. The multiple cold storage mechanisms include a first cold storage mechanism and a second cold storage mechanism higher in heat storage-and-radiation performance than the first cold storage mechanism.

Abstract: Tube-bundle heat exchange unit (1) for internals of heat exchangers or reactors, comprising: at least one tube bundle (2); a plurality of baffles (3) associated with said tube bundle and defining through-openings according to a predefined arrangement, each opening being passed through by one of more tubes of the tube bundle, and a shell (6) which surrounds said tube bundle and said baffles, wherein the assembly of the tube bundle and the shell can be disassembled and the shell is structurally collaborating with the tube bundle through said baffles.

Abstract: A packing is held between a tank body and a header plate to secure sealing. Therewith, the width in a longer axis direction of an opening of a flat tube is wider and the width of the tank body is relatively narrow, resulting in a compact tank structure. A number of tooth parts protrude from the tank body at regular intervals, a tube end release part is formed between the tooth parts, and a side edge in a longitudinal axis direction of an opening of the flat tube is positioned therein. The tooth part, a flange part, a seal face of the header plate and a peripheral wall form a packing accommodation part, and a tip edge of the tooth part is seated on an edge of a convex part. The packing is arranged between the packing accommodation part and the seal face.

Abstract: There is described a heat exchanger comprising a plurality of tubes arranged parallel with each other in order to form one or more tube bundles axially inserted into a shell. A first fluid, fed through one or more first inlet nozzles flows inside the tubes and a second fluid, fed through at least one second inlet nozzle, flows inside the shell in order to perform the heat exchange with the first fluid through the walls of the tubes. Inside the shell two or more baffles are formed and arranged perpendicularly with respect to the centre axis of the shell. Between each baffle and the inner walls of the shell there is defined a corresponding window constituted by the cross-section for the passage of the second fluid, with a crossing direction parallel with the centre axis of the shell and the tubes, delimited by the free edge of the respective baffle on the one side and by the inner profile of the shell, at the intersection of the shell with the plane of the baffle, on the other side.

Abstract: A fin-tube type of heat exchanger has: a plurality of fins laminated to one another; a housing for containing therein the fins; and a heat transfer tube penetrating the fins in a fin-laminating direction and also penetrating side plates on both sides of the housing. A heat transfer tube through hole is formed in one-side side plate of the housing by a burred hole having a tubular flange part protruded into the housing. Each fin has a brazing material insertion hole adjacent to the heat transfer tube through hole. That portion of a brazing material which protrudes from the brazing material insertion hole of the outermost fin closest to the one-side side plate part toward the one-side side plate part gets molten. The tubular flange part has a cutout part formed, at a circumferential position facing the brazing material insertion hole, by partly cutting away the tubular flange part.

Abstract: Passively deployable thermal management devices, systems, and methods are provided in accordance with various embodiments. For example, some embodiments include a passively deployable radiator device that may include: one or more thermally conductive layers; and/or one or more strain energy components configured to deploy passively the one or more thermally conductive layers. The one or more thermally conductive layers may include one or more carbon layers. The one or more carbon layers may include at least one or more graphite layers or one or more graphene layers. At least the one or more graphite layers or the one or more graphene layers include at least one or more pyrolytic graphite sheets or one or more pyrolytic graphene sheets.

Abstract: A heat transfer system including a fluid inlet; a fluid outlet; and a substrate in fluid communication with the fluid inlet and fluid outlet, the substrate including a heat exchange region having a heat transfer surface and a flow field adjacent the heat transfer surface, the flow field including a fluid flow area including an open region at the inlet, a heat transfer region in thermal communication with the heat exchange region, and a taper of the flow field cross-sectional area in the flow direction, wherein the flow field heat transfer region includes a plurality of spaced apart open enhancement features from 1 micron to 3 mm in size, and method for enhancing the heat transfer performance of an apparatus is disclosed.

Abstract: A heat dissipation retaining structure for a heat production device, an installation method thereof, and a wind turbine generator set. The heat dissipation retaining structure comprises a retaining structure body for defining a middle space, and a thermal radiation absorption coating (3), a heat insulating material, or an infrared low-emissivity and high-reflectivity material is at least partially applied to an inner wall of the retaining structure body (5). The air temperature of the environment in the retaining structure is actively decreased by the foregoing structure under the conditions that noise is avoided, environmental friendliness is achieved, external power is omitted, and energy consumption is zero, thereby decreasing the temperature of the heat production device, and ensuring that the heat production device works at the allowable normal temperature for a long time.

Abstract: A heat exchanger may be a refrigeration heat exchanger including a plurality of fins having a fin density greater than ten fins per inch, or may be a heat pump heat exchanger having a fin density of greater than eighteen fins per inch. Either heat exchanger includes a hydrophobic coating disposed on the plurality of fins for limiting the accumulation of frost.

Abstract: A heat exchanger comprises a glass body having a first flat face and a second flat face on opposing ends, and defining a longitudinal axis therebetween. A plurality of holes in the glass body are elongated along the longitudinal axis by extending from said first flat face to said second flat face. The plurality of holes are configured to receive and direct a gas therethrough, to exchange heat between the gas and the glass body.

Abstract: A method and device for supplying an inert gas in a beverage filling plant are provided. The method includes feeding surplus process heat from the beverage filling plant to a heat exchanger, feeding an inert gas from an inert gas source to the heat exchanger, heating the inert gas in the heat exchanger, and supplying the heated inert gas for use in the beverage filling plant.

Abstract: A locking mechanism for a firearm including a frame, a slide, a barrel and a firing mechanism is disclosed. The locking mechanism includes a body to engage the barrel and a slide lock extending from the body to engage the slide. With the slide in a forward position, the slide lock extends at least partially through an ejection port of the slide to engage the barrel with the slide.

Abstract: A trigger activated arm may use a piston moving within a cylinder to dampen gun bolt speed. In some embodiments, gun bolt motion increases pressure within the cylinder bore to dampen rearward gun bolt speed. The pressure may be high enough to unseat the cylinder creating a vent that cylinder fluid exits. In other embodiments, gun bolt motion decreases pressure within the cylinder bore to dampen forward gun bolt speed.

Abstract: The present invention consists of a container, made of fabric or wire-mesh netting, which attaches over a handgun's ejection port, and catches empty shell casings ejected when the weapon is fired. An opening at the bottom of the container, controlled by a drawstring and cord-lock, enables shells to be emptied without the need to detach the bag from the pistol's ejection port.

Abstract: A follower for an ammunition magazine comprises an elongated platform which has a spring anchor extending from an underside surface of the platform. The spring anchor comprises a hook-like appendage which defines a central transverse slot which leads to a catch portion from a restricted access portion. An opening is defined in the platform in general longitudinal alignment with a portion of the spring anchor. The follower spring has a mounting end portion. The follower spring passes through the access slot and is received in the catch for assembly to the platform.

Abstract: A hand restraint of flexible, high tensile strength material forming three separate cavities for slidably receiving and isolating the thumb, index finger, and remaining third, fourth, and fifth fingers in a closed fist-like configuration, respectively is provided. The material and cavities prevents wearers from gripping, manipulating and using weapons or other articles, yet providing them the ability to pinch the index finger and thumb together to grip smaller articles, such as forms of identifications and writing implements. Along a peripheral portion, the hand restraint may provide webbing at the junction of the index finger and thumb portions for further restraining manipulation of weapons. The hand restraint provides securing devices along its wrist portion for enabling the wearer to remove their own hand restraint upon conclusion of the need for the device.

Abstract: A firing mechanism for a firearm is provided for reducing maximum trigger pull weight attributable to a sear and for reducing trigger pre-travel and over-travel distances. The firing mechanism includes a sear actuator with a trigger engagement leg that engages with a trigger bar at a reduced trigger travel distance. The firing mechanism also includes an increased trigger bar contact distance, thus reducing trigger pull weight.

Abstract: The inventive technology comprises a novel gun barrel thermal indicator system that incorporates one or more thermogenic compounds that may be coupled to a gun barrel and indicate the temperature of a gun barrel during and after use. Additional embodiments may comprise a digital gun barrel thermal indicator system that may be coupled to a gun barrel and digitally indicate the temperature of a gun barrel during and after use. This novel gun barrel thermal indicator system may indicate the temperature at which the gun barrel will cause burns, is unsafe to store, or if a pre-determined threshold temperature has been reached resulting in a loss of firing accuracy, as well as imminent and/or actual barrel failure.

Abstract: The present disclosure relates to a firearm barrel assembly comprising: a barrel; a sleeve disposed within and spaced apart from the barrel and forming a chamber between the inner surface of the barrel and the outer surface of the sleeve; and a sound suppression assembly disposed within the sleeve and comprising at least one vent aperture in communication with the chamber such that shear and expanding gases from a fired bullet are directed into the chamber.

Abstract: Examples include a threaded coupler for connecting two portions of a firearm sound suppressor housing together. The threaded coupler includes a sound suppressing baffle. Using the coupler and its integrated baffle provides additional sound suppression compared to sound suppressors with other types of connectors between housing portions.

Abstract: A modular suppressor kit includes a modular suppressor and suppressor tool. The modular suppressor includes a barrel attachment portion that has a central passage. The barrel attachment portion is configured to attach to a firearm barrel. The modular suppressor includes a cap portion that has a central passage. The modular suppressor includes a body portion that has an internal baffle structure and an expansion chamber. The body portion is attachable to, and separable from, the barrel attachment portion and the cap portion. The body portion defines a central passage that is alignable with the central passage of the barrel attachment portion and the central passage of the cap portion. The suppressor tool has an engagement feature for engaging with at least one of the barrel attachment portion, cap portion, and body portion.

Abstract: A firearm suppressor cover assembly and method of protecting a user while firing a weapon are disclosed. The cover assembly has an insulating cover assembly, a one or more clamps or other firearm suppressor attachment means, one or more standoffs per clamp, and an optional heat shield. The standoffs are coupled to the one or more clamps and in contact with the insulating cover assembly thereby forming an air gap between the suppressor and the insulating cover assembly. The heat shield may be arranged within the air gap.

Abstract: A two-piece barrel nut includes an internal nut with an externally threaded portion on one end and a plurality of engageable members on the opposite end, and an external nut with an internally threaded portion on one end that receives the externally threaded portion of the internal nut and one or more receptacles on the other end that each may receive a fastener that engages at least one of the plurality of engageable members on the internal nut to lock the external nut to the internal nut. A method for using the barrel nut to attach a barrel to a firearm is also disclosed.

Abstract: A method of emulating a weapon comprising: illuminating a barrel tip locator to create an illuminated barrel tip locator when a fire signal is received; capturing an image of the illuminated barrel tip locator on a recorded media; and replacing the image of the illuminated barrel tip locator on the recorded media with a digitized visual effect.

Abstract: Embodiments include a riser assembly for a bow. The riser assembly can include a first non-planar riser plate; and a second non-planar riser plate that is coupled to the first non-planar riser plate with one or more connectors. The first non-planar riser plate and the second non-planar riser plate define a gap there between. A width of the gap extending from the first non-planar riser plate to the second non-planar riser plate. The width of the gap varies in size such that the width of the gap at a central location of the gap is larger or smaller than the width of the gap at a location distal to the central location. Other embodiments are also included herein.

Abstract: In some embodiments, an archery bow comprises a riser comprising a grip location and a cavity. A first limb is supported by the riser and attached by a first limb fastener. A second limb is supported by the riser and attached by a second limb fastener. A bowstring extends between the limbs. A vibration damper is located in the cavity, the vibration damper comprising a resilient member and a weight. A first distance from the bowstring to the first limb fastener is less than a second distance from the bowstring to the vibration damper.

Abstract: A handguard for attachment to a standard AR-pattern firearm upper receiver. A barrel nut has a substantially cylindrical outer surface with an annular groove. A handguard sleeve has an end opening configured to slide over the outer surface of the barrel nut, a channel with a bottom guide surface, and a substantially transverse cross bore positioned to at least partially intersect the end opening to align with the annular groove when the handguard sleeve is positioned on the barrel nut. A pair of wedge members are sized to be received in the channel and connected by at least one wedge fastener configured to adjustably move the wedge members together. When the barrel nut is attached to an upper receiver, the handguard sleeve is attached to the upper receiver by sliding the end opening over the barrel nut and inserting a cross bolt fastener in the cross bore and a portion of the annular groove.

Abstract: A rotational sighting apparatus includes a base, an aiming member and a pressing pivotal axle. The base includes a main body, a side cover and a through hole formed on the side cover. The side cover further includes a locking portion adjacent to the through hole. The aiming member includes a rotating portion and a pivotal attachment hole formed to penetrate through the rotating portion. The pressing pivotal axle penetrates through the pivotal attachment hole to connect with the rotating portion via the through hole. The pressing pivotal axle includes a locking key moveably locked onto the locking portion and an elastic element configured to drive the pressing pivotal axle to rotate. Accordingly, when the locking key disengages from the locking portion, the elastic element drives the pressing pivotal axle to allow the aiming element to rotate from a first position to a second position.

Abstract: A long-range optical sighting device includes a housing, which comprises an objective, an eyepiece, a reversing system and a target mark. The target mark illumination is switchable and controllable via an operating platform. The operating platform has one or a plurality of manually actuatable switches arranged on the housing in the region of the eyepiece, on the top of the housing in the operating position, and a power supply. Control electronics and a light-sensitive sensor system for detecting the ambient brightness are integrated in the operating platform and/or the housing in the region of the eyepiece. The operating platform comprises one or a plurality of light entrance openings for the light-sensitive sensor system in the direction of the objective.

Abstract: A device adapted for zeroing of a projectile device having a first scope, the device including a second scope; and an adaptor for securing the second scope to the projectile device. Further disclosed is a method for zeroing a projectile device having a first scope and a second scope, the method including: adjusting the aim of the projectile device by aiming a reticle of the second scope at the center of a bullseye at a target plane disposed at a distance; firing a first shot of the projectile device to create a first point of impact at the target plane; and aiming a reticle of the first scope at the center of the point of impact, wherein a subsequent shot fired from the projectile device is configured to impact a second point of impact aimed at with the reticle of the first scope at the target plane.

Abstract: An improved hard point net wherein a fabric net has hexagonal net line cells with six nodes. Hard points are attached to the net lines, three per hexagonal cell at every other node thereof such that in each cell there is a node without a hard point between two nodes with hard points and interior cells sharing hard points with all the cells surrounding it. A frame for the net spaces the net and the hard points from a target such as a vehicle.

Abstract: The present invention provides a metal injection molded ammunition cartridge comprising a metal injection molded bottom portion comprising a primer recess in communication with a primer flash hole that extends into a propellant chamber and a metal injection molded body extending form the metal injection molded bottom portion.

Abstract: The present invention provides a method of making a metal injection molded ammunition cartridge comprising the steps of: providing an ammunition cartridge mold comprising a bottom portion having a primer recess extending into the bottom portion adapted to receive a primer, a flash hole positioned in the primer recess through the bottom surface; side walls extending from the bottom portion to a nose end aperture, wherein a propellant chamber is formed between the nose end aperture and the bottom surface; injecting a metal composition into the ammunition cartridge mold to form a metal injection molded ammunition cartridge; and removing the metal injection molded ammunition cartridge from the ammunition cartridge mold.

Abstract: A high strength polymer-based cartridge casing inclosing a volume includes a first end having a mouth, a neck extending away from the mouth, a shoulder extending below the neck and away from the first end, a cartridge body formed below the shoulder, a insert attached to the cartridge body opposite the shoulder, and a projectile disposed in the mouth having a particular caliber. The neck has a neck thickness that is about 25% to about 125% greater than a standard neck thickness for the particular caliber as detailed by a standards organization. Also, the neck, the shoulder, and the cartridge body are formed from a polymer.

Abstract: A compound shell casing comprising: a generally tubular outer member having an open forward end, an open rearward end, and a central passage extending therebetween, with a circumferentially extending, forwardly and inwardly facing seat in the rearward portion of the central passage; an inner member disposed in the rearward end of the central passageway of the outer member, the inner member comprising a first forwardly facing cup-shaped portion, and a second, rearwardly facing cup-shaped portion opening to the open rearward end of the outer member, and a circumferentially extending downwardly and rearwardly facing shoulder on the exterior of inner member engaging the seat in the central passage of the outer member.

Abstract: A system for a practice electrode (e.g. dart) for a conducted electrical weapon (“CEW”). An officer issued a CEW is required to practice with the CEW in order to maximize its safe and effective use in a stressful situation. Preferably, training is performed using equipment as similar as possible to the equipment an officer uses in the field. Training with a CEW may include using a CEW to launch darts toward a human target. Training with a CEW against a live target may be improved, at least from the perspective of the target, by using a practice dart that is similar in weight and flight to a conventional electrode, but that does not pierce target clothing or tissue or delivery a high voltage current through the target. A practice dart may be similar to a conventional electrode, but include additional structure (e.g. cap) that prevents piercing. The additional structure and/or a non-conductive filament may be used to reduce a likelihood of or preclude delivery a current through the target.

Abstract: The invention relates to a simulated fragmentation grenade that can be rearmed for reuse, comprising a fixed part attached to springs acting on plates that move between an inner position and an outer position, an axial mobile part passing through the fixed part, the axial mobile part being pushed upwards by a spring, and being axially extended in the upper portion by a rod that is rotatably actuated by a mechanism, the rod being attached to a control casing arranged on the outside such that it can move axially and rotationally on a central extension of the body of the grenade, the axial mobile part having retention means for retaining the plates in the inner position, for releasing that retention according to the movement of the axial mobile part.

Abstract: The invention relates to small arms ammunition and can be used in the designs of projectiles intended for high precision long-range firing at supersonic and subsonic muzzle velocities of a projectile. A projectile of small arms ammunition comprises a head portion with a blunted nose surface, a central leading portion, and a boattail, which tapers towards the projectile base, wherein the largest diameter of the cross-section of the central leading portion is equal to “D”, the length of the head portion is equal to 1.9-2.9D, and the diameter at the interface between the nose surface and the lateral surface of the head portion is equal to 0.15-0.3D.

Abstract: A projectile is disclosed, having: a longitudinal axis, a steering assembly, a shell body, an attitude control system, a despin module, an electromagnetic receiver and/or emitter system, and a controller. The attitude control system includes a ram air inlet in selective open fluid communication with an exhaust assembly, which includes a plurality of exhaust outlets to selectively generate each of a plurality of thrust jets from a ram air inflow provided by the ram air inlet, each thrust jet being selectively controllable via the controller. The despin module is configured for selectively de-spinning the steering assembly with respect to the shell body about the longitudinal axis. The electromagnetic receiver and/or emitter system is configured for receiving and/or emitting electromagnetic energy, and for cooperating with the controller for operating the exhaust assembly to thereby selectively provide steering control moments. Systems and methods for steering the projectile are also disclosed.

Abstract: Method and systems of controlling detonation of a plurality of explosive charges. A controller has a magneto-inductive transmitter to transmit a magneto-inductive signal to a plurality of detonators, each having a receiver to receive the magneto-inductive signal and a respective firing delay time. The method includes, at each of the plurality of detonators, receiving, via the magneto-inductive signal from the magneto-inductive transmitter, a time sync signal; synchronizing a local clock in the detonator based on the time sync signal; receiving, via the magneto-inductive signal from the magneto-inductive transmitter, a firing code; waiting the respective firing delay time from receipt of the firing code, wherein the waiting is clocked by the local clock; and after expiry of the respective firing delay time, triggering a respective explosive associated with the detonator.

Abstract: A booster component which includes a booster housing for a booster explosive material and a printed electronic circuit which is associated with the housing and which includes a module for harvesting energy emitted by an energy source, a storage device for storing energy harvested by the module, an igniter and a circuit, powered at least by energy drawn from the storage device and responsive to a control signal for firing the igniter.

Abstract: A hand layout tool, apparatus, and method directed toward skilled and industrial trades, or for use within other similar mechanical layout and user applications, is presented. The current invention allows the trades technician or user to quickly and accurately determine or otherwise identify the outer or inner centerline of a radial or cylindrical surface feature at a selected or desired angle. Alternately, the current invention can allow the user to quickly, easily, and accurately measure or otherwise determine the included angle between two imaginary planes: a first plane defined as being coincident with the central axis of the cylindrical or radial surface and a first point on an outer or inner cylindrical or radial surface and a second plane defined as being coincident with the central axis of the cylindrical or radial surface and a second point on an outer or inner cylindrical or radial surface.

Abstract: Techniques for sensing position using a magnetic field direction sensor are provided. In an example, a system can include a magnet, a first magnetic field direction sensor, positioned between the magnet and a magnetic feature of a first structure, the sensor configured to move with the magnet and to measure a direction of a magnetic field produced by the magnet relative to a first axis (x). In certain examples, the magnetic feature is configured change position with respect to the magnetic sensor along the first axis (x) as a relative position between the magnet and the magnetic feature changes with respect to a second axis (y).

Abstract: A controller for sensing deformation including a sensor structure having a deformable conductor and another conductor (which may also be deformable). The deformable conductor may be made out of a flexible non-fluid material (e.g., rubber) or a conductive fluid. The deformable conductor may be deformed by the deformation of the sensor structure or by other forces. The sensor comprises circuitry to drive and sense signals on interacting pairs of conductors (the deformable conductor or the other conductor can act as the drive side, or as the sense side). Sense signals are processed to analyze deformation of the deformable conductor, and deformation of the sensor structure. Where the sensor is deployed proximate to human skin, deformation and changes in deformation may be used to correlate or infer a body position, movement or pose.

Abstract: In part, aspects of the invention relate to methods, apparatus, and systems for intensity and/or pattern line noise reduction in a data collection system such as an optical coherence tomography system that uses an electromagnetic radiation source and interferometric principles. In one embodiment, the noise is intensity noise or line pattern noise and the source is a laser such as a swept laser. One or more attenuators responsive to one or more control signals can be used in conjunction with an analog or digital feedback network in one embodiment.

Abstract: A coordinate positioning apparatus having first and second relatively moveable bodies, at least the first body having at least one sheet or plate of material arranged to provide a load-bearing structure having a plurality of planar load-bearing members and on which at least one member is mounted to the first body via a mount which is coupled to at least three, non-parallel planar load-bearing members of the first body, such that the planes of the at least three non-parallel planar load-bearing members intersect each other at a common point.

Abstract: The present invention discloses a synchronization method for multi-station data of dynamic coordinate measurement by a workshop measuring and positioning network. The method comprises the following steps of: determining a measuring and positioning space according to the in-situ measurement dimension, selecting locations for placing several transmitters, calibrating external parameters of the transmitters by a reference ruler, and establishing a measurement field; in a communication data packet of a signal processor, attaching local clock information into the angle information of each transmitter; and setting fixed time nodes on a time axis, and synchronizing data of different transmitters to corresponding time nodes so as to realize data synchronization.