Abstract: The intermittent absorption refrigeration system includes a primary circuit having a generator/absorber, a dephlegmator, a condenser, an evaporator, and solar collectors to provide heat to the generator. The system also includes an ejector-based secondary circuit having a generator/absorber, an ejector, a condenser, a refrigerant storage unit, and solar collectors. Both circuits are aqua-ammonia systems, using ammonia as the refrigerant and water as the absorber liquid. The ejector permits evaporation during the daytime and storage of liquid ammonia refrigerant that is used for cooling in the heat exchanger of the primary circuit condenser and in the primary circuit absorber, thus permitting the primary circuit evaporator to operate at lower temperatures for low temperature freezing applications in the daytime, even at high ambient temperature.

Abstract: A vehicular heat pump system utilizing intermediate gas recompression is provided. The heat pump system is for use in a vehicle having a battery and a passenger compartment. The heat pump system may include a heating circuit and a cooling circuit each including a compressor having a first inlet and a second inlet and a vapor-liquid separator configured to separate intermediate pressure refrigerant supplied by a first expansion device into refrigerant in a gaseous state flowing therethrough and refrigerant in a liquid state flowing therethrough. The vapor-liquid separator may be configured to selectively inject refrigerant in a gaseous state into the compressor at the second inlet to increase the mass flow rate of the refrigerant. This allows the heat pump system to operate effectively in cold ambient temperatures. A method of operating a heat pump system utilizing intermediate gas recompression is also provided.

Abstract: To provide a motor-driven valve with a small number of parts, with excellent assemblage, capable of maintaining a large valve port diameter even downsized, and to prevent deterioration of housing environment due to sound caused by the impact and shortened life that are generated by collisions of closing limit stopper parts.

Abstract: A device for expanding a refrigerant fluid has a first inlet and a first outlet which are connected by a first refrigerant circulation duct. The first refrigerant circulation duct has an upstream part and a downstream part which parts are placed in communication by a first communication passage. The device also has a second inlet and a second outlet which are connected by a second refrigerant circulation duct. The device regulates an expansion of the refrigerant fluid and has a first needle valve housed inside the upstream part of the first refrigerant flow duct connected by a first connecting rod to a thermostatic sensor in communication with the second refrigerant flow duct that allows or prevents refrigerant fluid from circulating through the first communicating passage. The device also measures the pressure of the refrigerant fluid entering the evaporator (Pse) which pressure measurement is taken at the first outlet.

Abstract: A cooling apparatus includes N (N is an integer of 2 or larger) refrigerant storage units arranged in a vertical direction and configured to store refrigerants, a condensation unit disposed above the N refrigerant storage units, a steam pipe for circulating gas phase refrigerants flowing out of the N refrigerant storage units to the condensation unit, a liquid pipe for circulating a liquid phase refrigerant flowing out of the condensation unit to an uppermost refrigerant storage unit, and separation piping for circulating a liquid phase refrigerant flowing out of an upper refrigerant storage unit to a lower refrigerant storage unit. The liquid phase refrigerant flows into each refrigerant storage unit via an inlet, and flows out from the refrigerant storage unit via a first connection port formed below the inlet.

Abstract: An air conditioning apparatus and a refrigerant quantity determination method are provided, whereby a refrigerant quantity can be determined in a simple and accurate manner without compromising the reliability of a compressor. A refrigerant circuit (10) has a compressor (21), an outdoor heat exchanger (23) that functions as a condenser, an indoor expansion valve (41, 51), an indoor heat exchanger (42, 52) that functions as an evaporator, an indoor unit interconnection pipe (4b, 5b), a liquid refrigerant connection pipe (6), a gas refrigerant connection pipe (7), and an outdoor unit interconnection pipe (8). A controller (9) performs liquefaction control for liquefying refrigerant and placing the refrigerant in a portion extending from the indoor expansion valve (41, 51) to the outdoor heat exchanger (23).

Abstract: A correspondence determination operation is performed. The correspondence determination operation differs a direction of distribution or a flow rate of a refrigerant flowing in one or some of use units among a plurality of use units to that of the other use units and determines, on the basis of a refrigerant temperature of the use unit, a location of a non-correspondence between a branch port that is connected to the use unit with refrigerant pipes and a set branch port that is obtained in accordance with the wire connection.

Abstract: A method of making an ice structure comprising the steps of: providing a mold with at least two mold portions where the at least two mold portions come together to form a cavity that defines a shape of an ice structure; placing the at least two mold portions in thermal communication with at least one cooling source; chilling the at least two mold portions using the at least one cooling source; orienting the at least two mold portions in spaced apart relation; delivering a flow of water such that the flow of water passes along the surface of the at least two mold portions with the mold segments such that water flows (by capillary/wicking action) over the mold segment and forms an ice structure segment; ceasing the flow of water when the ice structure segments are formed; and fusing the ice structure segments together to form the ice structure.

Abstract: A refrigeration device is provided that includes a housing enclosing an interior and an assembly in the interior having a storage compartment for chunks of ice and a stirrer. The stirrer is rotatable about an axis that extends through the storage compartment to move chunks of ice contained in the storage compartment in relation to each other and to move ice towards a dispensing passage that extends through the housing. A closable flap is interposed between the storage compartment and the dispensing passage.

Abstract: A sample cooling device is provided with, inside a sample storage which stores therein a sample rack, a first heat transfer member arranged at a position in contact with the sample rack, a second heat transfer member which cools the inside of the sample storage, and a condensate discharge mechanism which discharges condensate condensing on the second heat transfer member to the outside of the sample storage. An internal space of the sample storage is not sealed due to the existence of a leak path for air formed between the inside and the outside of the sample storage, the leak path including at least the channel. The sample storage includes an outside air introduction unit which forcibly blows the outside air into the internal space so that the pressure inside the sample storage becomes higher than the outside pressure thereof.

Abstract: A portable refrigeration unit for cooling palletized products disposed within a racking system. The portable refrigeration unit includes a case and a refrigeration system disposed in the case. The case includes a bottom wall, a top wall, and side walls. The case is configured to be supported by the racking system above a pallet of products positioned below the case. The refrigeration system includes a compressor, a condenser, an expansion device, and an evaporator connected in series. The refrigeration system includes an evaporator fan configured to draw in air from below the case, move the air through the evaporator, and then discharge the air through the bottom wall such that the cooled air passes over the products below the case to cool the products below the case.

Abstract: A system for controlling a defrost cycle of an evaporator having a sensor module and a control module. The sensor module includes a light source configured to emit light toward the evaporator when activated and to deactivate in response to a lockout signal. The sensor module also includes a light sensor configured to determine an amount of the emitted light reflected by the evaporator and to generate a detected light signal that corresponds to the amount of the emitted light reflected by the evaporator. The control module is configured to receive the detected light signal from the light sensor and to compare the detected light signal to a preset threshold. The control module is also configured to generate a termination signal when the detected light signal is less than the preset threshold and to generate the lockout signal when the detected light signal is greater than the preset threshold.

Abstract: An outdoor unit of an air conditioning device in which a compressor, a heat exchanger, and a fan are accommodated in a casing including a top plate, side plates, and a bottom plate is provided. The top plate is formed in a rectangular shape, and a flat mount surface is formed in each of corner portions of the top plate. Regarding each of sides of the top plate, an intermediate part excluding the corner portions serves as a retreat portion set back to the side of the device, and an end of the retreat portion and the mount surface are connected by a standing surface.

Abstract: Disclosed herein is a refrigerator includes a center frame provided to be spaced apart from the both walls of the body. The center frame includes a rear coupling unit coupling to the rear wall of the body, an arm unit extended forward from the rear coupling unit. The center frame may support at least two shelves disposed in a left side and a right side in the body so that the center frame supports moving of one or a combination of the shelves forward and backward with respect to the body.

Abstract: Disclosed is a refrigerator including a main body provided with a storage chamber; a door to respectively open and close the storage chamber; a control unit installed the door to select an operation; a reception part provided in the door to receive the control unit; and an installation hole provided on a side end of the door to cause the control unit to be inserted into the reception part. The control unit is installed through the side end of the door, which is deviated from a user's line of sight.

Abstract: A first liquefied hydrocarbon stream is provided from a first source and a second liquefied hydrocarbon stream is provided from a second source. The second liquefied hydrocarbon stream has been liquefied by cooling solely against a first cooled nitrogen-based stream. The first and second liquefied hydrocarbon streams are gasified to produce a gasified hydrocarbon stream, thereby cooling a gaseous nitrogen-based stream against the gasifying first and second liquefied hydrocarbon streams to provide a second cooled nitrogen-based stream.

Abstract: A method and apparatus for producing carbon monoxide by cryogenic distillation is presented.

Abstract: A freeze drying method includes decreasing pressure to a first vacuum pressure and, as a result of reaching the first pressure, a control system automatically activating a heater. The method includes sublimating solid water, increasing pressure to a second vacuum pressure greater than the first pressure, and, as a result of reaching the second pressure, the control system automatically deactivating the heater. As a result, a decrease in pressure, pressure-activated heater activation, material heating, water sublimation, and increase in pressure occur, accomplishing pressure-activated heater cycling. Another freeze drying method includes decreasing a temperature in a chamber to ?50° F. or less using a refrigeration system with single-stage compression and sublimating solid water at a vacuum pressure. A freeze drying apparatus includes a chamber, a vacuum pump, a heater, and a control system programmed with instructions operable to accomplish pressure-activated heater cycling.

Abstract: Drying apparatus (1) for drying containers (1), comprising: a rotating carousel (4); a plurality of drying stations (3) that extend along the circumference on the rotating carousel (4), a plate (5) rotating about its axis of symmetry (A) and at least one air dispenser (8) that sends air towards the container (2) resting on the plate (5) being located in each drying station (3).

Abstract: A foodware storage system includes a storage rack, a hook assembly, and a foodware item. The storage rack includes a rod having an adjustable length coupled between a first support and a second support to maintain the rod in an elevated position above a surface upon which the storage rack is placed. The rod is disconnectably connected to at least one of the supports. The hook assembly includes a hanger and a hook. The hook is suspended from the hanger and the hanger is configured to slidably move along the adjustable length of the rod. The foodware item has an aperture dimensioned to receive the hook such that the foodware item can be hung from the hook to dry when wet.

Abstract: A preheat charging system for preheating scrap metal prior to delivery to a melting furnace. The system includes a preheating station having a heating chamber adapted to receive scrap metal. Hot gas from a burner chamber is circulated around the scrap metal. The burner chamber is adapted to receive exhaust gas from a hot exhaust gas source such as a melting furnace. A burner apparatus is mounted within the burner chamber in a flow path of an exhaust inlet port. The burner is configured to supply supplemental heat on demand to the heating chamber to supplement the hot exhaust gas. A first fan can be provided to direct exhaust air from a furnace to the burner chamber. A second fan can be provided for directing air into the burner apparatus.

Abstract: A metal melting furnace which effectively melts a melting material and holds the temperature of the molten material to reduce fuel. The metal melting furnace has a material charging port and a flue at its top and a melting chamber with a heating plate which melts a melting material charged from the material charging port at its bottom. A heating burner is disposed at a bottom side of the heating plate of the melting chamber and is used to melt the melting material on the heating plate. Exhaust gas of the heating burner, which circulates through the exhaust gas channel, is used to preheat the melting material of the flue. At a bottom side of the heating burner of the melting chamber, a molten material holding section into which molten material flows to be stored is formed. The heating burner holds the temperature of the molten material.

Abstract: In a method for cooling liquid, when a liquid containing a volatile component and a surfactant is supplied to an atmosphere having a pressure which is lower than or equal to the saturated vapor pressure of the volatile component so that at least a portion of the volatile component is vaporized, whereby the liquid is cooled, a gas other than the volatile component is introduced into the atmosphere having the pressure so that the gas contacts the liquid.

Abstract: A heat pipe apparatus having a sintered lattice wick structure includes a plurality of wicking walls having respective length, width and heights and spaced in parallel to wick liquid in a first direction along the respective lengths, the respective lengths being longer than the respective widths and the respective heights, the plurality of wicking walls being adjacent to one another and spaced apart to form vapor vents between them, a plurality of interconnect wicking walls to wick liquid between adjacent wicking walls in a second direction substantially perpendicular to the first direction, and a vapor chamber encompassing the sintered lattice wick structure, the vapor chamber having an interior condensation surface and interior evaporator surface, wherein the plurality of wicking walls and the plurality of interconnect wicking walls are configured to wick liquid in first and second directions and the vapor vents communicate vapor in a direction orthogonal to the first and second directions.

Abstract: A motorcycle has a heat exchanger adapted to be installed on the motorcycle in a substantially horizontal orientation. Also, the heat exchanger is adapted to be installed on the motorcycle beneath the engine, crankcase, oil pan and/or gearbox without substantial vertical orientation and not attached directly to the engine, except by cooling fluid connectors. Preferably, the heat exchanger is made with finned tubular core elements. The heat exchanger is installed in a suspended manner beneath the motorcycle, so that cooling air may pass over its top and bottom surfaces. Preferably, the heat exchanger is an oil intercooler.

Abstract: A co-axial gas-liquid heat exchanger such as a charge air cooler comprises at least three concentric tubes forming at least two annular flow passageways. One end of the inner tube is rigidly attached to the middle tube by a thermal expansion connector including an inner connecting portion secured to the first end of the inner tube, an outer connecting portion secured to an inner surface of the middle tube; and one or more webs connecting the inner connecting portion to the outer connecting portion. The webs extend across the annular gas flow passageway but permit the hot gas to flow therethrough. The other end of the inner tube is free to expand in the longitudinal direction, relative to the middle and outer tubes. In some embodiments, the inner connecting portion forms part of a central plug portion which blocks an end of the inner tube.

Abstract: A plate fin includes a slit structure formed by cutting and raising a portion of the plate fin to form an opening facing a flow direction of a fluid and a waffle structure formed by bending a portion of the plate fin to form a protrusion having an angle-shaped cross section which protrudes in a stack direction and having a ridge substantially perpendicular to the air flow direction, and the waffle structure is disposed on the upstream side on the plate fins with respect to the slit structure and a slant length L1 on the upstream side of the waffle structure is smaller than a slant length L2 on the downstream side of the waffle structure.

Abstract: A heat exchanger includes a housing including an inlet for receiving bulk solids, and an outlet for discharging the bulk solids. A plurality of spaced apart, substantially parallel heat transfer plate assemblies are disposed in the housing between the inlet and the outlet for cooling the bulk solids that flow from the inlet, between adjacent heat transfer plate assemblies, to the outlet. Ones of the plurality of heat transfer plate assemblies including a heat transfer plate and a pipe extending along a top end of the heat transfer plate to protect the heat transfer plate.

Abstract: A heat transfer system includes a steam chamber that communicates in an open-loop arrangement with a first steam source for supplying steam to the steam chamber, the steam chamber including a steam exit for supplying steam to air at atmospheric pressure. A heat transfer tube communicates in a closed-loop arrangement with a second steam source for supplying steam to an interior surface of the heat transfer tube, the heat transfer tube vaporizing condensate forming within the heat transfer system back to steam that is supplied to the air via the steam exit. The outer surface of the heat transfer tube is configured to contact the condensate and vaporize the condensate back into steam, wherein the heat transfer tube includes a plurality of pockets formed on the outer surface of the tube, each pocket including a pocket exit/entry portion having a smaller cross-sectional area than the cross-sectional area of the pocket at a root portion thereof adjacent the outer surface of the tube.

Abstract: New heat spreaders are proposed to connect high power, high heat generating electronic devices to their downstream heat dissipating cooling components. First, the spreaders distribute the high heat flux over a wider surface area, thus reducing the flux to levels more easily handled by the downstream cooling system. Second, the spreaders incorporate flexible columns or elements to join the electronic devices to the main body of the spreader, so as to negate the undesirable effects of CTE mismatch. Columns with a higher standoff distance between the components are more flexible than a direct flat interface attachment between the heat source and the heat sink, and will have less chance of delaminating. Several embodiments are proposed and can be used in appropriate situations. The heat spreaders can be helpful in harsh environments and in high heat generating applications, such as spacecraft, satellites, as well as land locked high power computer systems.

Abstract: A heat exchanger for use with a two-phase refrigerant includes an inlet header, an outlet header, and a plurality of refrigerant tubes hydraulically connecting the headers. A distributor tube has a plurality of orifices disposed in the inlet header, the end of the refrigerant tubes opposite the outlet header extends inside the inlet header and abuts a surface of the distributor tube, a portion of an inner surface of the inlet header facing the surface of the distributor tube and the surface of the distributor tube defining a first chamber. A gap separates at least a portion of the distributor tube and the inlet header, the gap extending from at least the orifices to the first chamber, wherein at least one partition having at least one opening formed therethrough spanning the gap, the partition separating the orifices from the first chamber.

Abstract: This heat sink has bonded on one surface a member to be bonded, and has a cooling member in contact with the other surface. The heat sink is provided with a metal plate having a thermal expansion coefficient larger than that of the member to be bonded, and the metal plate is provided with a center portion where the member to be bonded is bonded, and a plurality of linear peripheral slits formed in a whirl-like radial manner such that the linear peripheral slits surround the center portion.

Abstract: A method of firing projectiles without the use of cartridge cases by electronically controlling the dynamics of internal ballistics created by combustion of Nitrous Oxide and a fuel injected under high pressure at oxygen rich or stoichiometric ratios. The shape of injector nozzles and the combustion chamber as well as a timed sequence of Nitrous Oxide injection, fuel injection and their ignition are used to create correct ballistics. The timing of the injection and ignition sequence is automatically altered dynamically by an electronic control unit that obtains information from sensors and from an operator to tune the combustion for each firing so that the internal ballistic pressure versus time curve is favorable.

Abstract: A firearm having a lower receiver is provided. The receiver is adapted to couple with a plurality of upper receivers having different calibers. The lower receiver comprises a receiver extension having an opening therein. A spring is disposed within the opening. A buffer member is provided having a first portion having an end. The buffer member is coupled to the spring within the opening, wherein the buffer member is movable between a first position where the end is within the opening and a second position wherein the end external to the opening.

Abstract: A retro fit capable super & subsonic gas regulator assembly designed to interface with an auto-loading gas operated host firearm is provided to replace existing gas systems. The gas regulator assembly optimizes gas flow into the host firearm's operating system. The gas regulator has a spring actuated gas regulator and cross-pin including a flat that disengages with the gas regulator when the gas regulator is rotated to allow the gas flow to be set to one of a plurality of gas settings e.g., four. In embodiments, setting one is optimal for using supersonic ammunition with a silencer, setting two is optimal for using supersonic ammunition without a silencer, setting three is optimal for subsonic ammunition, and setting four turns the gas flow off optimizing sound reduction and providing for manual operation of the host firearm. The system works by precisely metering gas entering the operating system and not by exhausting excess gas into the atmosphere.

Abstract: A magazine dispenser for loading a magazine into a gun having an opening to receive and hold at least one magazine through an opening. Once at least one magazine is inserted, a flange of the magazine is received in a track provided by a slot region in the magazine dispenser. The magazine then rests on a retention bar disposed in the track which may impede the magazine from being dispensed or support the magazine to be dispensed from the magazine dispenser depending on circumstances.

Abstract: An ammunition magazine loading device for use with, and in combination with, an ammunition magazine, and a method of using the same. Such a device includes a base portion, a plunger having a first end extending from the base top and a second end terminating at first and second plunger extensions defining a pin slot therebetween, and a pin. At least one magazine side includes a pin aperture, the plunger is configured to abut and move a magazine follower below the pin aperture, and the pin is configured to be concurrently positioned through the pin aperture and the pin slot to statically position the follower in a lower position for rounds to then be added to the magazine.

Abstract: Provided are detachable trigger safety devices for a gun configured to conveniently lock/unlock the trigger. Generally, the trigger safety device comprises a first component, a second component and means for releasably limiting the positions of the second component. The first component is attached to the barrel portion of a gun. The second component is either hingedly attached to the first component or slidably attached to the out surface of the first component. When the second component is hinged to the first component, the second component rotates upward to enclose the trigger. When the second component is slidably attached to the first component, a set of grooves on the inner surface of the second component corresponds to the rails disposed on the out surface of the first component such that the second component is slidable along the length of the first component.

Abstract: Novel flash suppressors comprised of tines formed by cuts of varied lengths and widths to better reduce muzzle flash and eliminate any unwanted ringing caused by resonance of the tines.

Abstract: A compound bow comprising a handle portion having a first limb and a second limb extending outwardly therefrom, a wide body cam assembly pivotally coupled to the first limb near an outer end thereof, and a dual wheel assembly pivotally coupled to the second limb near an outer end thereof. The wide body cam assembly comprises a main sheave and a collector sheave located on opposite sides of a cable sheave. The main sheave is spaced apart from the cable sheave by a first distance sufficient to permit arrows to be fired from the bow free from interference by a cable without the use of a cable guard. The dual wheel assembly comprises a feed out sheave and a take in sheave separated by a second distance which is larger than the first distance. The feed out sheave is positioned substantially within a plane defined by the main sheave.

Abstract: A modified fletching groove for a crossbow that assists with efficiently setting the crossbow into an armed or fully drawn position. The fletching groove includes at least one setting disposed between the rearward end and forward end of the crossbow stock. Each of the at least one settings define a path that includes at least a first direction and a second direction and a catch. The first direction preferably extends downwardly and slants towards the forward end of the stock, and the second direction preferably extends from the lower most end of the first direction, and upwardly extends at a slanted angle towards the forward end. The upwardly incline surface of the second direction is at substantially forty-five degrees relative to the top surface of the fletching groove. The second direction further defines an upper most end that includes the catch adjacent the upper most end. The at least one setting for receiving the crossbow bowstring at selected intervals along the length of the fletching groove.

Abstract: Vibration dampeners (DTM's) designed to surround a device in which unwanted vibrations (including shocks) are set up during use or a component of the device. The DTM significantly shortens the duration of those vibrations, reducing sound levels, making the device more comfortable to use in wielded instrument applications of the invention, and/or significantly reducing the possibility that the vibrations might damage the device. A representative, but significant, use of the subject DTM's is to dampen the vibrations generated when an arrow (or bolt) is shot from a crossbow.

Abstract: A lubricating arrow rest is configured to lubricate an arrow shaft when the arrow is inserted into the arrow rest and then shot. A lubricating arrow rest has a plurality of whiskers configured within a whisker retainer and a lubricant receiving feature configured to accept a lubricant into the lubricating arrow rest. A lubricant reservoir may be attached to a lubricant receiver feature and may have a lubricant dispensing feature to force lubricant from the lubricant reservoir onto the whiskers through a supply orifice. A whisker retainer may comprise a retainer conduit that disperses the lubricant through a plurality of outlet orifices configured around the inner perimeter of the whisker retainer. A lubricating arrow rest may have a bow fixture for attachment to a bow. A lubricant reservoir may be coupled to the bow fixture and a bow fixture conduit may couple the lubricant reservoir with a supply orifice.

Abstract: A cam guard system that employs a cam guard apparatus for use on a compound bow to protect a cam of the compound bow. The cam guard apparatus has a C-shaped, rigid support member with a substantially flat connection portion, a concave extension portion, and a substantially flat resting portion. A means of securing the cam to the compound bow is also provided. The cam guard system employs a draw stop peg on an outside surface of the cam.

Abstract: An open ignition breech plug for a muzzle-loading firearm. The open ignition breech plug includes an internal body portion for removable installation into the breech end of a barrel of the muzzle-loader, and an external body portion comprising a gripping surface, a nipple for receiving an ignition source such as a percussion cap, and at least one open portion of the external body portion for external visibility of the nipple and a percussion cap mounted thereon. The nipple can be integrally formed with the external body portion or removably mounted thereto.

Abstract: A magazine attached firearm grip provides an off hand grip for various firearms while allowing its user to present a small target to adversaries. A magazine attached firearm grip comprises recesses at a front side of its body and a groove at its rear side. The grove engages and is attached to an edge at a bottom end of a magazine. Once a top end of the magazine is inserted into a magazine well of a firearm the magazine attached firearm grip provides a gripping area for a firearm that receives a user's off hand. The tactile elements of the magazine attached firearm grip, such as the recesses and walls thereof allow for touch based installation and removal of the magazine without the need for visual inspection.

Abstract: A stock for a tactical weapon comprises a handgun and a receiver. The receiver may have a connection end configured to be connected to a tactical weapon, and a second end configured to receive a handgun. The receiver may be configured to releasably connect to a buffer bar of the tactical weapon. The receiver may be configured to be connected at different positions on the buffer bar thereby providing a variable overall length for the buffer bar and receiver when the receiver is installed on the buffer bar. The receiver and buffer bar may also be monolithically formed. The receiver may have a lever mechanism that actuates the safety of a handgun inserted therein or the receiver will serve as a trigger guard that prevents the handgun from being discharged once inserted into the receiver. The receiver may have a release configured to releasably secure the handgun in the receiver.

Abstract: A safe includes a safe body that has an opening. A door is movably interfaced to the safe body such that the door selectively occludes the opening, thereby, selectively permitting access to the opening in one position and precluding access to the opening in a second position. A locking mechanism engages between the door and the safe body when the door occludes the opening. When provided with a key, the locking mechanism disengages between the door and the safe body, permitting access to the opening. An insert is positioned within the safe body. The insert has an opening formation configured to support at least one specific weapon, which is arranged to be accessed from the opening.

Abstract: An adjustable occluded eye sight for use with multiple types of weapons including guns and projectile launchers. The sight being light weight, having a low profile, and mountable on the top of a weapon and adjustable for different launch angles.

Abstract: A method of providing proximity detection includes receiving a signal at a rifle scope indicating proximity of a second rifle scope. The method further includes providing a visual alert to a display of the rifle scope based on the proximity.