Abstract: A cooling apparatus (1) for cooling a fluid by means of surface water comprises a plurality of tubes (10) for containing and transporting the fluid to be cooled in their interior, the tubes (10) being intended to be at least partially exposed to the surface water during operation of the cooling apparatus (1). Furthermore, the cooling apparatus (1) comprises a plurality of light sources (21, 22) for producing light that hinders fouling of the exterior of the tubes (10), the light sources (21, 22) being dimensioned and positioned with respect to the tubes (10) so as to cast anti-fouling light over the exterior of the tubes (10), wherein the light sources (21, 22) have a generally elongated shape, and wherein the light sources (21, 22) are arranged in at least two mutually different orientations in the cooling apparatus (1).

Abstract: A fluid handling device that is adapted to heat or cool a first fluid flow, the device includes a thermal chamber adapted to heat or cool the first fluid flow in the thermal chamber; and an input channel which is adapted to channel the first fluid flow into the thermal chamber, an outlet channel which is adapted to channel a heated or cooled second fluid flow out of the thermal chamber, such that the thermal energy of the second fluid flow along the outlet channel is higher or lower than the thermal energy of the first fluid flow along the input channel. The outlet channel is thermally connected to the input channel, so that the outlet channel is adapted to transfer thermal energy between the heated or cooled second fluid flow along the outlet channel and the first fluid flow along the input channel to heat or cool the first fluid flow before entering the thermal chamber.

Abstract: The invention relates to a heat exchanger assembly having two exchangers, each comprising a stack of parallel plates defining a first connection surface and a second connection surface that are adjacent to each other. The heat exchanger assembly can also include an enclosure between the first connection surface and the second connection surface, primary compartments in the enclosure configured to channel primary fluid through the first connection surface and the second connection surface, and a secondary compartment in the enclosure for channeling secondary fluid.

Abstract: A three-dimensional heat transfer device includes a vapor chamber comprising a chamber body and a first capillary structure, and the first capillary structure being disposed in the chamber body; and a heat pipe comprising a pipe body and a second capillary structure, and the second capillary structure being disposed in the pipe body. The first capillary structure is connected to the second capillary structure by metallic bonding.

Abstract: The invention provides a modular device for latent heat storage, which is made of a conduit with a first end and a second end; and a jacket that surrounds a portion of the conduit between the first end and the second end, wherein the jacket is comprised of at least one phase change material. The invention further provides a system for latent heat storage, comprising a thermally insulated enclosure adapted to receive at least one modular latent heat storage device and a HTF, wherein the HTF flows from an upstream heat source into each of the first ends of the conduit and out of each of the second ends of the conduit comprising the at least one module to a downstream heat exchanger.

Abstract: The disclosure generally relates to compositions, methods, and systems for heat transfer and methods of preparing heat transfer mediums. In various embodiments are described heat transfer mediums comprising a plurality of microparticles suspended in a bulk material with each microparticle containing a phase change material. In other embodiments are described fluids comprising of a slurry of microparticles containing phase change fluid in a carrier liquid for a fast charger system.

Abstract: An assembly for liquid cooling is provided herein. The assembly 8 includes a thermal member, a support member, and a gasket. The thermal member includes an array of cooling pins formed of a thermally conductive material to extend from the thermal member. The support member includes an inlet channel and an outlet channel. The inlet channel to provide a fluid to the array of cooling pins. The outlet channel to receive the fluid from the array of cooling pins. The gasket between the thermal member and the support member to form a cooling channel with a fluid tight seal therebetween.

Abstract: A heat exchanger (1) for tempering of an object (7), in particular of an electric energy reservoir (8), has two components (2, 3), which are interconnected and delimit at least in part a flow compartment (17) for the flow of a tempering fluid. Furthermore, at least one of the components (2, 3) is produced from a composite fiber plastic. Improved handling and/or a more compact design is obtained in that at least one of the components (2, 3) has a depression (9) in which a functional element can be at least partially accommodated.

Abstract: A water-cooling heat dissipating system includes a pump and a water-cooling head. The water-cooling head includes a base, a first chamber and a second chamber. The base is in contact with an electronic component. The first chamber and the second chamber are located over the base and separated from each other. The first chamber includes a first inlet and a first outlet. The first inlet is in fluid communication with the pump. The second chamber includes a second inlet and a second outlet. The second inlet is fluid communication with the first outlet. The liquid continuously flows through the first chamber and the second chamber. The heat from the electronic component is transferred to the liquid within the first chamber and the second chamber through the base, and released through the first outlet and the second outlet.

Abstract: A heat exchanger includes a first header pipe, a second header pipe, a third header pipe, a fourth header pipe and a plurality of flat tubes, the first header pipe is provided with a first space and a second space and a communicating passage for communicating the first space with the second space; when refrigerant flows from the first space of the first header pipe to the second header pipe along the flat tubes, a part of the refrigerant passes through the communicating passage and directly enters into the second space of the first header pipe, thus an overall flow resistance of the heat exchanger may be decreased to some extent. Besides, the flow quantity of the refrigerant in the third flow path is constant, however fluid state parameters may change, which may greatly improve the heat exchange capacity of the third flow path, thereby improving the heat exchange performance of the heat exchanger on the whole.

Abstract: A heat exchanger has a rectangular-shaped core having a plurality of fluid passages extending in a width direction and air fins interleaved between said fluid passages. The heat exchanger has tanks that define fluid manifolds located at opposite ends of the core and fluidly connected by the plurality of fluid passages between the tanks. The tanks each include an extruded tank section with open ends and end caps that enclose the ends of the extruded tank section. The tanks are assembled and attached to the core such that each of the end caps is located at each of four corners of the rectangular-shaped core.

Abstract: Devices configured to direct heat flow are disclosed, as well as methods of forming thereof. A device may include a self-assembling heat flow object. The self-assembling heat flow object may include a material having one or more self-assembling properties that cause the material to react to an environmental stimulus and one or more thermal pathways. An application of the environmental stimulus causes the self-assembling heat flow object to deploy and arrange the one or more thermal pathways for directing thermal energy to one or more locations.

Abstract: A device for coupling to a heat source, the device includes thermoelectric elements and a coupling magnet. The thermoelectric elements harvest heat to generate electric current. The coupling magnet provides a coupling force between the thermoelectric elements and the heat source. The coupling magnet regulates thermal flow between the thermoelectric elements and the heat source as a function of temperature of the coupling magnet. The device acts to protect the thermoelectric elements and other associated components from heat damage that might otherwise occur if the heat source generates too much heat.

Abstract: A rocker chiller includes a chilling tank and a baffle assembly. The baffle assembly includes a drive shaft, a baffle blade extending along a bottom of the tank and a plurality of spaced-apart and elongate baffle members extending in a radial direction from the drive shaft towards the bottom of the tank. The elongate baffle members contact the drive shaft at spaced-apart locations along the drive shaft and define a plurality of openings therebetween. The elongate baffle members are sized and shaped to push at least a majority of the carcasses laterally through the heat exchanging liquid in a direction generally orthogonal to a lengthwise forward movement of the carcasses from the first end of the tank to the second end of the tank.

Abstract: In order to obtain a heating and cooling system capable of localized cooling or heating a given area, a heating and cooling system includes: a supply section configured to supply a heating medium; and a double pipe unit including: an inner pipe, connected to the supply section, through which the heating medium flows, and an outer pipe disposed at an outer peripheral side of the inner pipe, the outer pipe including a space between the inner pipe and the outer pipe, the space being maintained at a vacuum, portions in which a degree of vacuum of the space is different, or in which the degree of vacuum of the space is adjustable.

Abstract: An additively manufactured component is provided. The additively manufactured component includes an additively manufactured first part defining a first trench, an additively manufactured second part defining a second trench and a fiber optic sensor. The additively manufactured first and second parts are additively manufactured together with the first and second trenches corresponding in position such that the additively manufactured first and second parts form an assembled part with a fiber channel cooperatively defined by the first and second trenches. The fiber optic sensor includes a first sensor part embedded in the fiber channel and a second sensor part operably coupled to the first sensor part and extendible at an exterior of the assembled part.

Abstract: A coolant distribution system uses two premixed streams of coolant at either extreme of a concentration range, and mixes these two streams in the correct percentage to obtain the desired concentration. Mixing the two streams follows a pulse width approach, and the system may use a manifold to deliver fluid to multiple machines.

Abstract: A lower receiver for an AR15 type firearm is provided comprising a non-detachable magazine movable in the receiver between a first locked position where the firearm is ready for use (i.e. cocked and ready for firing) and a second non-operational position where the magazine is lowered sufficiently to open a window or aperture in the receiver enabling the user to load fresh shell cartridges into the magazine. A locking mechanism also is provided for controlling the position of the non-detachable magazine between the first and second positions. A child-proof lock further is provided to prevent undesired activation of the locking mechanism. Additionally, a novel locking plate disposed between the lower receiver's frame and the receiver's stock extension tube provides enhanced support for the extension tube and an accessory attachment point for a shoulder strap or sling.

Abstract: A gun includes a bolt member that is disposed in a gun body so as to be movable forward and rearward, that moves rearward in response to gas pressure generated by bullet shooting so as to compress a bolt spring, and that moves forward in response to release of the compressed pressure so as to perform a bullet loading operation, and a bolt stop that stops forward movement of the bolt member. The bolt stop (31) has engagement means (36) for engaging with the bolt member which moves forward to reach the engagement means (36) after last bullet shooting, and includes buffer means (40) for buffering an impact force applied to the bolt stop due to the engagement so as to act on the bolt stop.

Abstract: A piston for a gas-operated firearm has an elongated body having a head portion adapted to be closely received in the cylindrical bore for reciprocation within the bore, the head portion having a first side toward a forward direction and a second side toward the rearward direction, the body having an operational facility on the second side adapted to transmit an operating force to the action in response to gas pressure on the first side, and the head portion defining a bypass passage between the first side and the second side. The bypass passage may have an adjustment facility adapted to provide selectable resistance to gas flow through the bypass passage. The adjustment facility may be a movable occlusion element that selectably occludes the bypass passage. The occlusion element may be a threaded element. The occlusion element may be a collar that receives a portion of the body.

Abstract: A device and system for metering the flow of gas into a gas driven reloading system of a firearm, the device is a gas plate that includes a plurality of openings of differing radii, a plurality of positioning notches formed on an edge of the gas plate, and a series of teeth formed on a surface of the gas plate, where the series of teeth are formed with a pitch configured to correspond with threads of a worm drive, and where at least a partial rotation of the worm drive slidingly positions the gas plate with respect to the adjustable gas regulator. The system includes the device and the adjustable gas regulator having a body configured to receive the device and the worm drive.

Abstract: Embodiments of the present disclosure provide modifications to the AR platform operating system such that the platform now is competent to fire large caliber cartridges, including belted cartridges, providing longer range and greater barrier penetration without substantially altering the characteristic features and component inter-relationships of this platform.

Abstract: A loader for loading ammunition into a magazine for a handgun. The loader may be universal in that it is capable of loading various types of ammunition cartridges into various types of magazines. A cartridge driver of the loader drives the cartridges into the magazine.

Abstract: A tracking system for durable assets such as personal weapons is provided. The tracking system includes a durable asset tag including an RFID transponder physically mounted within an externally exposed cavity of the durable asset, and an identification card with a machine-readable third unique identifier associated with a person. Different embodiments are disclosed for the durable asset tag, with one embodiment including a helical antenna connected to the RFID transponder for facilitating communication with an RFID reader. The system also includes first and second databases, each storing information associated with the durable asset, and an AIM interface terminal for receiving the first unique identifier from the durable asset tag and the third unique identifier from the identification card, and which communicates with the databases for checking-in or checking-out the durable asset to the person having the identification card.

Abstract: Trigger assemblies that preserve the integrity of the trigger sear surface when the trigger assembly enters a “half-cocked”, safety configuration are disclosed. In certain embodiments, a trigger safety engagement surface engages a hammer safety engagement surface in the safety configuration, preventing the hammer from rotating into contact with a firing pin. In some instances, the trigger sear surface is suspended within a safety recess (e.g., a notch) of the hammer and free of contact with the hammer when the trigger assembly is in the safety configuration.

Abstract: The invention relates to a device for detecting and counting live bullet shots, blank shots and dry-firing actuation of the striker for all types of semi-automatic or automatic weapons, said device being able to discriminate between said three events and comprising: an electronic circuit (5); a first sensor for detecting a movement of a part (2) of the weapon preceding a potential live bullet shot or blank shot; and a second sensor (6) for measuring recoil acceleration when the live bullet shot or blank shot has been fired.

Abstract: Systems and methods for reducing or removing trigger slack in a firearm are disclosed. In some instances, a method comprises positioning a plunger safety tab to a front end of a body of a trigger bar. The plunger safety is positioned more forward on the body relative to an OEM plunger safety tab. The method also includes positioning a cruciform coupled to the rear end of the body. The cruciform is positioned more forward on the body relative to an OEM cruciform.

Abstract: An interchangeable chamber and barrel system for allowing an end user to easily change a chamber body and/or a barrel for a firearm without the assistance of a gunsmith. The interchangeable chamber and barrel system generally includes an interchangeable chamber body having a chamber that is removably connectable to a receiver of a firearm and an interchangeable barrel that is removably connected to the chamber body opposite of the receiver. The system also includes a sealing member positioned within channels in the barrel and the chamber body. The chamber body and/or the barrel may be changed on the firearm at any time based on the preference of the end user.

Abstract: A user configurable and maintainable firearm sound suppressor is provided. The sound suppressor is a magnum powered rifle suppressor that can be configured to provide suitable use on a high-powered rifle or a pistol. A mount interface of the suppressor can be replaced and a dual taper baffle can be removed and replaced with a pistol recoil booster system which allows optimal use for both rifles and pistols. The dual taper baffle and rifle or magnum mounting interface adds safety factor such that system durability and safety are not compromised. The user configurable and maintainable firearm suppressor allows the end user to have ideal firearm handling characteristics for a wide variety of firearms, reducing the need to purchase numerous sound suppressors for a collection of firearms. A novel two-part end cap allows disassembly of the suppressor and prevents inadvertent loosening of component parts during use.

Abstract: A noise suppression device for use with a firearm includes a body including an outermost external surface of the noise suppression device and an internal portion and a core seamlessly connected to the internal portion of the body, wherein the noise suppression includes no joints, no seams, or any formerly separate pieces within the body or the core, and the core includes a structure of a plurality of holes defined by a framework of a connecting structure that connects to the internal portion of the body. Optionally, the core can include one or more baffles or one or more chambers.

Abstract: A firearm sound suppressor (12) has a baffle tube (20) and an exterior tube (14) which are concentrically disposed to define a single expansion chamber (56) there-between. A muzzle cap (16) encloses a first end of the expansion chamber (56) and has a plurality of flow ports (36) which provide fluid communication between a gun barrel muzzle and the expansion chamber (56). An end cap (18) encloses a second end of the expansion chamber (56). The end cap (18) has a bullet port (46) and vent ports (48) which extend circumferentially around the bullet port (46). Baffles (22) of tubular shape are pressed into the baffle tube (20) to provide a baffle stack (66). The baffles (22) have interiorly disposed upsets (78) which defines a gas check feature, causing spent propellant gases move into the entire volume of the expansion chamber (56) to reduce muzzle blast pressures.

Abstract: A suppressor assembly for a firearm including a barrel, a bore and a muzzle end. The suppressor assembly may include a gas block mount positioned about the barrel, and outer tube configured to be attached to the gas block mount, and a baffle configured to be attached to the muzzle end of the firearm. The baffle is telescopically received and configured to have a clearance fit with the outer tube. The baffle may also include one or more outer edges configured to scrape debris from the inner surface of the outer tube when the baffle is removed from the outer tube.

Abstract: A barrel assembly for use in a semiautomatic firearm, including a barrel and a takedown lever. A rear portion of the barrel includes a follower lug and a rear lug extending from an underside of the rear portion. A pin of the takedown lever includes a notch with a vertical face configured to contact a vertical face of the follower notch when the firearm is in the locked position. The rear lug is configured to be supported by a portion of a locking block of the firearm prior to firing and during a portion of the recoil period. A fitting pad extending downward from a rear lug of the barrel can be adjusted to provide a customized fit of the barrel to a frame of the firearm. The modifications to the barrel assembly result in increased dwell time and accuracy of the firearm.

Abstract: Apparatus and associated methods relate to a toollessly interchangeable ring gear drive mount system for a rotatable turret including a ring gear, a ring gear drive module, a mount bracket, a pair of receiver members, and a pair of mount flanges. In an exemplary aspect, the mount bracket may extend in a plane perpendicular to an axis of rotation of the ring gear and be adapted for mounting to a platform arranged in a rotatable relationship to the ring gear. The pair of receiver members may extend from the mount bracket and define a pair of slide channels positioned substantially vertically and oriented substantially parallel to the axis of rotation. The pair of mount flanges may each be sized and shaped to be slidably inserted into a corresponding one of the pair of slide channels and adapted to support the ring gear drive module.

Abstract: A firearm training system includes a device body simulating a firearm and a releasable magazine accessory. The magazine accessory is retained within a receptacle formed within a handle of the device body by a pair of catches and two springs that provide opposing forces on the magazine accessory. The firearm training system also includes an improved trigger assembly that reduces breakage of the trigger under repetitive trigger pulls.

Abstract: An archery bow with a riser including a mount in an upper wall of a sight window of the riser may allow for a novel manner of mounting an archery accessory. Placement of the mount within a centerline plane of the riser may maintain the weight of the archery accessory along a center of the bow, thereby reducing or eliminating asymmetrically weighted bows or the need for an additional stabilizer to balance the weight of the archery accessory. Positioning the mount in the upper wall of the sight window additionally allows for coordination of the position of a secondary accessory, such as a sight, a light, or a camera, in addition to mounting an arrow rest, such as in a lower wall of the sight window, while maintaining the centralized weight advantages noted above.

Abstract: The device of the present invention employs a riser, bow limbs, and bowstring to shoot an arrow. The employed features are positioned horizontally relative to the ground and generally perpendicular to the device handle when in use. The device handle may be hinged, and is hinged in the same plane as the riser, bow limbs, and bowstring. The device handle is ambidextrous and may include an arm brace. The device handle may be adjusted to alter draw length, and the device limb pockets may be adjusted to alter draw weight. The device is completely user-adjustable, compact, and lightweight.

Abstract: Provided is a crossbow safety system comprising a crossbow, optic fence, and interlock. The crossbow may have a bowstring operable between a cocked and an uncocked position, the cocked position and the uncocked position defining between them a bowstring plane, and a trigger assembly adapted to selectably retain the bowstring in the cocked position. The optic fence may be adapted to detect an obstruction in a safety plane coincident with the bowstring plane or offset below the bowstring plane by some offset distance. The optic fence may have an infrared emitter adapted to output IR radiation, and a photodiode adapted to sense the output IR radiation from the infrared emitter. The interlock may be operationally engaged with the optic fence and the trigger assembly. The interlock may be adapted to lock the trigger assembly from releasing the bowstring if the optic fence detects an obstruction in the safety plane.

Abstract: Provided is a mid-limb cam crossbow system comprising a beam; a bow assembly having a first bow limb of length L1 and second bow limb of length L2; a first cam engaged with the first bow limb at a point between (0.15)L1 and (0.75)L1 from the limb end; a second cam engaged with the second bow limb at a point between (0.15)L2 and (0.75)L2 from the limb end; a first power string engaged with the first cam and a region on the second bow limb greater than (0.75)L2 from the limb end; a second power string engaged with the second cam and a region on the first bow limb greater than (0.75)L1 from the limb end; and a bowstring engaged between the first cam and the second cam. The bow assembly may be configured in an uncocked configuration or a cocked configuration. L1 and L2 are between 15 centimeters and 65 centimeters.

Abstract: A bracket may be adjustable with respect to a bracket engagement device and serve as both a stirrup and a shooting rest for a crossbow. One or more biasing force generators may be used to bias the bracket into one of at least two relative positions with respect to the bracket engagement device.

Abstract: A bowstring which is attached to a recurve or other long bow providing a section having an abrasive circular margin used to cut wood or other substance in an emergency replacing the bowstring of the bow utilized for shooting an arrow.

Abstract: Disclosed is a toy gun for a survival game, comprising: a cartridge chamber in which projectiles that are fed from a magazine are individually loaded; a toy gun main body including a barrel connected with the cartridge chamber, and a handle portion; a cylinder assembly installed to be capable of reciprocating within the barrel, and having a rack gear member; a piston unit which can retract together with the cylinder assembly and be stationary in a ready-to-fire state, and which enters into the cylinder assembly when firing from the ready-to-fire state to provide high-pressure air through the cylinder assembly to the cartridge chamber to fire the projectile; and an operation control device that automatically operates and controls the movements of the cylinder assembly and the piston unit for each firing mode in order to fire the projectile supplied to the cartridge chamber.

Abstract: A self-defense tool having a blade that is designed primarily for self-defense is described. The design is intended to eliminate intent to kill on the part of the user when used in defense of an attack. The tool cannot easily be used as an offensive weapon. Thus, when used properly, the tool is geared to take the intent to kill away from the user. The tool is designed to hit the pressure points or places of an attacker and give time for the user to make a critical decision to run or defend. The sharpened blade portion has a reverse cut that is intended to cut more as an attacker pulls away than when the sharpened blade portion is thrust forward. The design minimizes the probability of self-injury by the tool, while maximizing the ability to defend the user from the attacker.

Abstract: A firearm includes: a rail secured to the firearm; and an adjustable firearm stock secured to the rail, the adjustable firearm stock including: a base removably secured to the rail of the firearm and defining an extension element bore; and an extension element positioned in the extension element bore, the extension element configured to move along an axis of the extension element bore. A method of using a firearm includes: mounting a base of an adjustable firearm stock to a rail of the firearm; and sliding an extension element of the adjustable firearm stock through an extension element bore of the base to adjust the adjustable firearm stock to a desired orientation.

Abstract: An apparatus to couple a handguard to a firearm having a barrel nut, wherein the barrel nut includes a cylindrical portion and an outwardly protruding flange with a plurality of scalloped regions, the apparatus comprising at least one handguard mounting member, the handguard mounting member providing a collar configured to at least partially circumscribe the cylindrical portion of the barrel nut, and the least one handguard mounting member configured to fit in at least one of the scalloped regions of the plurality of scalloped regions of the barrel nut to inhibit rotation of the at least one handguard mounting member relative to the barrel nut.

Abstract: An improved long gun construction is provided. A gun is provided with a kisser device mounted to the butt stock; the kisser device having a flexible projection positioned to engage a portion of the shooter's head, e.g., a corner of the mouth, to assist the shooter in consistently positioning the head to better align the shooter's visual line of sight with the guns line of sight.

Abstract: A holster for a weapon that has a lovable actuator, such as a safety, has a movable holster part, such as a hood, that is supported on a body portion of the holster for movement relative to the body portion between an open position allowing the weapon to be removed from the body portion of the holster and a closed position blocking removal of the weapon from the body portion of the holster. The hood has an engagement portion that engages the safety of the weapon when the hood is moved from the open position to the closed position at a time when the weapon is in the holster.

Abstract: A gun safe is provided that has components configured to releasably retain a handgun in the safe. The safe includes a gun ejector mechanism, a gun retaining mechanism, and an activator mechanism. The components positively mechanically secure the gun in a retained condition until the activator effects release of the gun, and then the ejector effects movement of the gun from a retained position to a user access position.

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: The invention concerns a rifle scope (1) with a housing (10), in which optical lenses (20, 21, 22, 23) are arranged along an optical path (OP), and with an adjusting wheel (11) for adjusting a function, wherein the adjusting wheel (11) is mounted so as to turn relative to the housing (10) about an axis of rotation (A), and wherein the adjusting wheel (11) has a first coupling means (13), on which an adjusting aid (30) which projects relative to the axis of rotation (A) radially about the outer circumference (12) of the adjusting wheel (11) is releasably secured to a second coupling means (31).