Abstract: Systems, methods, and non-transitory computer-readable media for continuously monitoring residential air quality and providing a trend based analysis regarding various air pollutants are presented herein. The system comprises an air quality monitor located in a residential house, wherein the air quality monitor is configured to measure the level of an air pollutant. The system also includes a server that is communicatively coupled to the air quality monitor, wherein the server is configured to generate a unique environmental fingerprint associated with the residential house.

Abstract: Systems and methods are described for interactively, graphically displaying and reporting performance information to a user of an HVAC system controlled by a self-programming network-connected thermostat. The information is made on a remote display device such as a smartphone, tablet computer or other computer, and includes a graphical daily or monthly summary each of several days or months respectively. In response to a user selection of a day, detailed performance information is graphically displayed that can include an indication of HVAC activity on a timeline, the number of hours of HVAC activity, as well as one or more symbols on a timeline indicating setpoint changes, and when a setpoint was changed due to non-occupancy.

Abstract: A thermostat includes a housing, a touch-sensitive display configured to display visual media and receive user inputs, processing electronics configured to operate the touch-sensitive display, and a mounting plate. The housing includes a base that has walls that define an internal volume. The housing also includes a display mount cantilevered upward from the top wall. The display mount includes a mounting surface perpendicular to the top wall of the base. The housing also includes a touch-sensitive display configured to display visual media and receive user inputs. The touch-sensitive display is attached to the mounting surface of the display mount. The processing electronics are positioned within the interior volume of the base. The mounting plate is configured for attaching the housing to a mounting surface. The mounting plate is attached to the bottom wall by a hinge so that the housing may pivot between an open position and a closed position.

Abstract: A method for providing a thermal absorber, which can be used in solar thermal collectors. The method includes a step of depositing on a substrate a first layer having a composition that comprises titanium, aluminium, nitrogen, and one of following elements: silicon, yttrium, cerium, and chromium. The method further optionally includes a step of depositing a second layer deposited on the first layer, the second layer having a composition including titanium, aluminium, nitrogen, oxygen and one of the elements of silicon, yttrium, cerium, and chromium, and a step of depositing a third layer having a composition including titanium, aluminium, silicon, nitrogen, and oxygen, the third layer being a top layer of the thermal absorber.

Abstract: In a turbo refrigerator in which: a gas-phase refrigerant from an evaporator is compressed by a turbo compressor and then condensed by a condenser; the obtained liquid-phase refrigerant is evaporated by the evaporator; and a cooling target is cooled down by evaporation heat of the liquid-phase refrigerant, the compressor is a back-to-back two-stage centrifugal type, and the condenser is provided at a position outside a compressor rear stage so as to overlap the compressor rear stage when viewed from each of an axial direction and a radial direction. With this, the pressure loss of a vapor refrigerant is eliminated, and the deterioration in efficiency can be suppressed. In addition, size reduction can be realized by space saving. Further, an evaporated refrigerant can be smoothly introduced to the condenser with a simple configuration.

Abstract: An air-conditioning apparatus achieves improvement of safety and further achieves saving of energy without allowing a refrigerant to circulate in or near an indoor unit. The air-conditioning apparatus is configured such that heat medium pipes have a larger inner cross-sectional area per unit capacity than that of refrigerant pipes.

Abstract: A thermal system, comprising a thermoelectric element arranged for a heat flux through the element from the cold side for heat uptake to the hot side for heat dissipation, wherein the heat uptake of the thermoelectric element is arranged by convention, the system further comprising a primary loop for accommodating a cooling liquid for transferring the heat away of the thermoelectric element, wherein the thermoelectric element is arranged for having a maximum heat transfer capacity being higher than the maximum heat dissipation capacity of the primary loop and/or wherein the system is arranged for, manipulation of the flow which affects the stagnant film layer at the heat transmitting surface of the thermoelectric element of the forced convection, to enhance the heat transfer coefficient, and/or wherein a part of the primary loop forms a liquid channel for the heat transmitting surface of the thermoelectric element wherein the direction of the flow is traversing the direction of the liquid flow of the opposite

Abstract: An air-conditioning apparatus includes an outdoor unit including a compressor configured to compress a first-side refrigerant and a heat-source-side heat exchanger configured to cause heat exchange between air and the first-side refrigerant, plural indoor units including indoor heat exchangers configured to cause heat exchange between the air and a second-side refrigerant, plural intermediate heat exchangers configured to cause heat exchange between the first-side and second-side refrigerants and connected to the outdoor unit by a first-side refrigerant pipe and connected to the indoor units by a second-side refrigerant pipe, and a flow switching device configured to switch combination of connection between the indoor units and the intermediate heat exchangers. The indoor units include convective indoor units and radiant indoor units, the convective indoor units include a convective indoor heat exchanger, and the radiant indoor units include a radiant indoor heat exchanger.

Abstract: A system comprises the integrated combination of: a condenser having a condenser water path leg extending from a water inlet to a water outlet; a first expansion device; a flash tank economizer; a second expansion device; an evaporator having an evaporator water path leg extending from a water inlet to a water outlet; and a refrigerant flowpath passing sequentially through the condenser, the first expansion device, the economizer, the second expansion device and the evaporator. The flash tank economizer comprises a horizontally elongate body having a first end and a second end. The economizer has an inlet conduit having an outlet. The economizer has a liquid outlet, a vapor outlet, and a medium between the outlet of the inlet conduit and the liquid outlet. A length of the refrigerant flowpath between the first expansion device and the outlet of the inlet conduit is at least 0.5 m.

Abstract: A renewal method of an air-conditioning unit for vehicle in which an air-conditioning unit using a former refrigerant disposed in a frame mounted on a vehicle is renewed to an air-conditioning unit using an alternative refrigerant, the renewal method including a removal step of: a removing the existing air-conditioning unit from the frame; an assembly step of disposing the new air-conditioning unit, which is configured so as to be capable of fitting in the frame, in the frame; and a filling step of filling the alternative refrigerant into the new air-conditioning unit. The circulating amount of refrigerant in the new air-conditioning unit is increased so as to be larger than that in the previous air-conditioning unit, and the heat exchange capacity per unit volume of each of the indoor heat exchanger and the outdoor heat exchanger is made larger than that before the renewal.

Abstract: An air conditioning service system includes an inlet port configured to connect to an air conditioning system to receive refrigerant, a discharge circuit, a pressure transducer, and a controller. The discharge circuit includes a plurality of discharge lines arranged in parallel with one another, each of the plurality of discharge lines fluidly connecting the inlet port to the atmosphere through an associated orifice to vent the refrigerant to atmosphere, and a plurality of discharge valves, each of which is configured to open and close an associated one of the plurality of discharge lines. The controller is configured to obtain the pressure at the inlet port and determine a theoretical mass flow rate through each of the plurality of discharge lines based upon the pressure and the cross-sectional area of the associated orifice, and to operate selected ones of the discharge valves based upon the determined theoretical mass flow rates.

Abstract: A system and method of heat exchanger freeze protection for an HVAC system by operating an indoor unit assembly and an outdoor unit assembly in a cooling mode and operating a fan at an initial airflow, operating a temperature sensor to measure a temperature value of a heat exchanger, at the expiration of a first predetermined time period, determining whether the temperature value is less than or equal to a first temperature preset value, determining whether a current airflow multiplier is equal to a maximum airflow multiplier limit, increasing the current airflow by an airflow offset multiplier if the current airflow multiplier is less than or equal to the maximum airflow multiplier limit and the temperature value is less than or equal to the first temperature preset, and operating the fan at an increased airflow to move more air across the heat exchanger.

Abstract: A method of controlling an air conditioner including a compressor, an outdoor heat exchanger, an expansion valve and an indoor unit, includes detecting an indoor temperature and an outdoor temperature and checking an indoor load and an outdoor load when an operation command is input, determining an operation frequency of the compressor and a degree of opening of the expansion valve based on the checked indoor load and the outdoor load, driving the compressor at the determined operation frequency and opening the expansion valve to the determined degree of opening, thereby supplying a refrigerant to an indoor heat exchanger having a first cooling panel and a second cooling panel disposed parallel to each other, controlling a rate of rotation of each of the indoor fans based on the operation frequency of the compressor and the degree of opening of the expansion valve.

Abstract: A variable speed electric drive for use in refrigerant systems includes an electric motor for driving an associated component at a variable speed that is a function of an operating frequency of the motor; and a control for supplying alternating discrete drive frequencies to the electric motor to provide a continuously variable speed drive of the associated component. The control cycles the drive frequency to the electric motor among the at least two discrete frequencies so that the variable average resultant speed at which the associated component is driven is a function of a combination of the selected at least two discrete frequencies.

Abstract: A Step Flow control device and methods therefore provide instructions to control operation of various absorption chiller components based on measured load or temperature information. Operating an absorption chiller according to Step Flow balances the flow of heat energy through the absorption chiller to increase efficiency and prevent crystallization. The control device may be integrated into various components of an absorption chiller or may be remote therefrom. In this manner, Step Flow can be used in new absorption chiller installations or be used to retrofit existing installations.

Abstract: Provided is a supercooling refrigerator including, so as to supercool foods such as fish or meat and more uniformly and stably maintain a temperature in a storage chamber supercooling the foods, a body including a storage chamber storing goods such as the fish or meat in a supercooled state, a door installed in the body, a plurality of shelves installed in the storage chamber, on which the goods are stored, a cooling unit cooling internal air of the storage chamber, a cooling air supplying unit circulating the air cooled by the cooling unit into the storage chamber, and a cool air controlling unit controlling the temperature of the cool air supplied from the cool air supplying unit in a supercooling temperature range of the stored goods.

Abstract: A refrigeration device has an ice maker with an ice cube tray that is rotatably mounted about a rotational axis. The ice maker includes two stops for limiting the rotational movement of the ice cube tray about the rotational axis.

Abstract: An ice maker assembly includes an ice tray having an ice forming plate with a top surface, a bottom surface and upstanding edges around a perimeter of the ice forming plate. A containment wall extends upwardly around the perimeter of the ice forming plate. The containment wall has a slot extending along a lower portion of the containment wall. The slot receives the upstanding edges of the ice forming plate to form the ice tray. A fluid line is configured to dispense water onto the top surface of the ice forming plate. A mechanical oscillating mechanism is coupled to the ice tray. The oscillating mechanism begins to rotate the tray in a rocking cycle about a transverse axis of the ice forming plate after ice has started to form along the top surface.

Abstract: An ice-making assembly for installation in a domestic refrigerator or freezer is provided. The ice-making assembly comprises: a frame structure; and first and second ice-making trays supported for rotation about a rotational axis with respect to the frame structure between an ice production position and an ice discharge position, wherein the first and second ice-making trays are disposed behind one another in a direction of the rotational axis and each have a tray longitudinal dimension in the direction of the rotational axis that is larger than a tray width direction in a direction transverse to the rotational axis.

Abstract: A robust, durable, easy to use, reusable shipping container is disclosed that is capable of protecting contents from surrounding high temperatures up to 1000 degrees Fahrenheit for a minimum of at least three and a half hours. The container includes an inner chamber surrounded by an outer chamber. A phase change liquid (PCL) is sequestered in a porous support matrix contained in the inner chamber, while the outer chamber is filled with high temperature insulation, forming an outer barrier layer that is designed to reduce heat flux into the inner chamber.

Abstract: An appliance having a fresh food storage compartment and a freezer compartment. The appliance includes a forced air coil system disposed between the fresh food storage compartment and the freezer compartment and is configured to selectively provide cooling to one or both of the at least one fresh food storage compartment and the at least one freezer compartment. The forced air coil system includes an evaporator fan configured to provide cooling to the food storage compartment, the freezer compartment, or both.

Abstract: A three-dimensional (3D) vacuum insulation panel (VIP) and a folding approach to create the 3D VIP from a two-dimensional (2D) VIP of non-uniform thickness for a refrigerator, a refrigerator freezer or a non-appliance, are disclosed. The folding approach includes placing a VIP main panel and a plurality of VIP wall panels on an outer film, where one or more panels are of a greater thickness than other VIP panels; placing an inner film on top of the VIP main and wall panels and sealing the films together. The inner film is longer than the outer film and this allows the films and the VIP wall panels to be folded into a finished panel, wherein the longer inner film allows for fording without causing tears or micro-cracks in the film that would adversely affect the insulation properties of the three-dimensional (3D) VIP.

Abstract: A domestic appliance such as a refrigerator, washing machine, and dryer is disclosed. The appliance may include a piezoelectric device. The piezoelectric device may be configured to supply electrical power to various electrically-powered elements in the appliance, such as a light source, a drive status sensor, and active balancing components.

Abstract: A domestic appliance, in particular a domestic refrigeration appliance, includes an interior chamber and an electronic control apparatus having an electronics system and being constructed to control at least one function of the domestic appliance during operation thereof. A door leaf for opening and closing the interior chamber has an inner face facing the interior chamber and an outer face facing away from the interior chamber. A recessed handle in the outer face includes a grip forming an indentation in the outer face. A lighting configuration has at least one lighting device, in particular an LED, to illuminate the recessed handle. At least a large part of the electronics system and the at least one lighting device form a common assembly disposed within the door leaf adjacent the indentation, so that the at least one lighting device can radiate light out of the indentation into the recessed handle.

Abstract: A cooler with a modular light bar having multiple LEDs and a secondary lid is disclosed herein. The LEDs are preferably automatically activated by a switch positioned in the cooler. When the lid is in an open state, the switch completes a circuit from a battery to the LEDs of the modular light bar thereby allowing the LEDs to illuminate the entire interior chamber of the cooler.

Abstract: A refrigerator includes a storage compartment formed in a cabinet of the refrigerator by a fixed insulation wall, the storage compartment being provided with an access opening. The refrigerator also includes a door rotatably provided to the cabinet to open and close the access opening, a drawer provided in the storage compartment, a camera fixed to a ceiling of the storage compartment to photograph both a first region for storing of food arranged in an external space of the drawer and a second region for storing of food arranged in an internal space of the drawer, and a controller configured to separate, through a capturing time of a picture containing both the first region and the second region, a first region picture and a second region picture from the picture to individually divide and store the first region picture and the second region picture.

Abstract: Methods and devices for continuously producing liquid air. One embodiment includes bringing a first container confining an unpressurized first volume coupled to outer air in contact with a first cryogenic medium, and maintaining a temperature of the first cryogenic medium substantially higher than the boiling temperature of the first cryogenic medium for affecting continuous production of liquid air.

Abstract: A system for tempering vehicle bodies having a housing, a tempering tunnel in the housing, at least one pressure chamber in a housing and separated by a wall from the tempering tunnel, a plurality of nozzles in the wall and an air tempering unit which introduces tempered air into the pressure chamber in such a way that the tempered air flows in through the nozzles into the tempering tunnel and acts on the vehicle body. At least one nozzle unit is oriented and has a range that is wide enough, such that the air stream exiting the nozzle unit passes through an opening in the vehicle body on the side facing the nozzle unit and acts on an inner face of the vehicle body on the opposite side.

Abstract: A boxing glove drying device has a body member. The body member has an open end and a closed end. The closed end is curved and configured for inserting into a boxing glove. A plurality of openings is formed in the body member.

Abstract: A substrate heating apparatus includes: a heating chamber, as well as a heating unit and a suspension holding unit which are provided in the heating chamber. The heating unit is provided at the bottom of the heating chamber, and the suspension holding unit holds the substrate in suspension above the heating unit. The apparatus avoids collision and friction on the substrate, and ensures uniform heating of the substrate.

Abstract: An industrial furnace (1) into which protective gas is admitted for the heat treatment of batches (5) of metal workpieces is described. The heat treating furnace includes an entrance lock (2) which can be sealed with respect to the surrounding environment by means of a first gas-tight closure device (2.2.1). The heat treating furnace also includes a third gas-tight closure device (3.1) disposed between a heat treatment chamber (3) of the furnace and a quenching facility (4) at the exit of the heat treatment chamber. With the foregoing arrangement a pressure of the protective gas admitted into the heat treatment chamber (3) can be maintained during loading and unloading of a batch of metal workpieces (5). The entrance lock may be configured as a dual-chamber vertical arrangement or as a single chamber horizontal arrangement.

Abstract: A vacuum heat treating furnace for the heat treatment of metal parts includes a pressure vessel and a hot zone enclosure that defines a hot zone therein. A heating element array inside the hot zone enclosure includes a first heating element, a second heating element, and a center heating element. The first and second heating elements are suspended on opposing sides of the hot zone enclosure. The center heating element is suspended vertically from the hot zone enclosure between the first and second heating elements. The center heating element is adapted to be connected to the first and second heating elements to form a continuous circuit therewith. The center heating element may be connected to the first and second heating elements with removable/reusable fasteners to provide for reconfiguration of the hot zone to accommodate different size workloads.

Abstract: A hybrid closed circuit heat exchanger having a dry indirect section and an evaporative indirect section. The evaporative indirect section has multiple sub-sections. An evaporative fluid distribution system is configured to selectively distribute evaporative fluid over all, part, or none of the sub-sections. A process fluid flow path control system is configured to selectively direct the process fluid through one or more sub-sections. The process fluid flow path control system may send all of the process fluid through two or more sub-sections in equal amounts or in different amounts. There is preferably no evaporative heat exchange section bypass flow path.

Abstract: A heat exchanger can include a stacked array of interconnected fluid transfer members. The stacked array of interconnected fluid transfer members can include a first fluid transfer member, a second fluid transfer member, a third fluid transfer member, and a fourth fluid transfer member. The first fluid transfer member can include a liquid passageway extending lengthwise though the first fluid transfer member and a set of helical fins extending outwardly from an outer surface of the first fluid transfer member and rotating along a length of the first fluid transfer member. The stacked array of interconnected fluid transfer members can form a jointless structure.

Abstract: A CHP system includes a combustor as a heat source, a Rankine cycle apparatus, a second heat exchanger, and a thermal fluid flow path. The Rankine cycle apparatus includes, as an evaporator, a first heat exchanger that absorbs thermal energy from combustion gas (thermal fluid). The second heat exchanger absorbs thermal energy from the combustion gas and transfers the thermal energy to a heat medium. The first heat exchanger and the second heat exchanger are disposed in the thermal fluid flow path. The thermal fluid flow path includes a first flow path that allows the combustion gas to reach the first heat exchanger directly from the combustor and a second flow path that allows the combustion gas to reach the second heat exchanger directly from the combustor.

Abstract: Configurations and related processing schemes of specific direct or indirect inter-plants integration for energy consumption reduction synthesized for grassroots medium grade crude oil semi-conversion refineries to increase energy efficiency from specific portions of low grade waste heat sources are described. Configurations and related processing schemes of specific direct or indirect inter-plants integration for energy consumption reduction for integrated medium grade crude oil semi-conversion refineries and aromatics complex for increasing energy efficiency from specific portions of low grade waste sources are also described.

Abstract: A high efficiency ventilation system may include a partition configured to separate a supply air stream and a return air stream, an energy recovery ventilator, a heat recovery ventilator, a refrigerant flow controlling condensing unit, and a direct expansion coil. The refrigerant flow controlling condensing unit may be configured to send a refrigerant to the direct expansion coil and configured to receive a refrigerant from the direct expansion coil. The direct expansion coil may be disposed between the energy recovery ventilator and the heat recovery ventilator. The high efficiency ventilation system may be configured to supply ventilation air to a controlled environment at a particular temperature and a particular humidity.

Abstract: Compression molding of metals is used to make microchannel heat exchangers. Heat transfer can be improved by employing controlled microchannel surface roughness. Flux-free bonding is achieved using a eutectic thin-film intermediate layer. Seals are leak-tight, mechanically strong, and uniform across multiple contact areas. The metal heat exchangers may be mass-produced inexpensively, and are useful for applications including the cooling of computer chips and other high-power electronic devices, air conditioning, refrigeration, condenser plates, radiators, fuel cell heat management, and instant water heating.

Abstract: A bent heat exchanger and a method for manufacturing the same are provided. The bent heat exchanger includes: a first header and a second header spaced apart from each other, a plurality of flat tubes and a plurality of fins. A plurality of flat tubes are disposed between the first header and the second header, two ends of each flat tube are connected with the first header and the second header respectively. Each flat tube has straight segments and a bent segment between the straight segments, the bent segment is twisted by a predetermined angle relative to the straight segment around a longitudinal direction of the flat tube. The bent segments of a plurality of the flat tubes form a bent segment row extending in a thickness direction of the flat tube. A plurality of the flat tubes are divided into a plurality of groups.

Abstract: Each fin 30 is designed to have continuous lines of wave crests 34 and continuous lines of wave troughs 36 arranged at a preset angle in a specific angle range of 10 degrees to 60 degrees relative to the main stream of the air flow and symmetrically folded back about folding lines of a preset folding interval W along the main stream of the air flow. A ratio (a/p) of an amplitude ‘a’ of a waveform including one wave crest 34 and one adjacent wave trough 36 to a fin pitch ‘p’ satisfies a relation of 1.3×Re?0.5<a/p<0.2. A ratio (W/z) of the folding interval W to a wavelength ‘z’ of the waveform satisfies a relation of 0.25<W/z<2.0. A ratio (r/z) of a radius of curvature ‘r’ at a top of the wave crest 34 or at a bottom of the wave trough 36 to the wavelength ‘z’ of the waveform satisfies a relation of 0.25<r/z.

Abstract: A tube for heat transfer in which the inner surface of the tube is grooved into a pattern. The pattern includes a first fin (10) and a second fin (20) which have different shapes, wherein the first fin comprises a shaft and a head integrally formed, the shaft extending from the inner surface in a direction away from the inner surface, the head extending from the shaft in a direction away from the inner surface. In a transverse cross section of the tube, the circumferential width of the head is larger than that of the shaft.

Abstract: A waste heat recovery apparatus includes a waste processing module and a heat recovery module. The waste processing module includes a heat exchange unit and a drive unit. The heat exchange unit includes a hollow tubular structure having at least one material inlet, at least one material outlet and a screw mounted axially thereinside. The drive unit rotates the screw to extrude the waste material. The heat recovery module includes a heat storage unit, at least one conveying pipeline and a compression unit. The heat storage unit contains a heat-storing medium for storing thermal energy. The conveying pipeline connected to the heat exchange unit and the heat storage unit allows a working medium to flow through the heat exchange unit and the heat storage unit. The compression unit coupled to the conveying pipeline circulates the working medium to flow in the conveying pipeline.

Abstract: In one aspect, a process for controlling a temperature of fluid entering a post treat reactor in a naphtha hydrotreater includes measuring a temperature of hydrotreater reactor effluent and determining a set point based on the measured temperature. The set point is transmitted to a first temperature indicator controller, and the first temperature indicator controller measures a temperature of fluid flowing into a post treat reactor and adjusts a combined feed flow through a bypass of an upstream combined feed exchanger. This reduces an amount of heat exchanged in the combined feed exchanger and thus prevents the fluid temperature of the fluid entering the post treat reactor from falling below the set point.

Abstract: A device for controlling the temperature of cooling water includes a three-way valve having a first inlet, a second inlet, and an outlet; a first feed pipe; a second feed pipe; and a return pipe for connecting between an outlet of the temperature-control target and an inlet of the cooling water supply unit. The device also includes a return-side bypass pipe for connecting between the return pipe and the second inlet of the three-way valve; a pump provided on the second feed pipe for circulating the cooling water between the three-way valve and the temperature-control target; and a temperature measuring unit for measuring a temperature of the cooling water flowing in the second feed pipe. In addition, the device includes a controller for controlling the three-way valve and the pump in accordance with a detection result of the temperature measuring unit.

Abstract: A store includes supplying modules, which define rows, which are arranged one next to the other. Each row has a predetermined number of crates. At least one flooring structure, which supports the supplying modules, defines a walk-off surface. A moving system for a handler of the crates includes an overhead-travelling-crane, which is arranged in the upper part of the supplying modules and is adapted to move the handler in a reference plane, so as to reach the single crates. The overhead-travelling-crane includes a horizontal truss, which, in turn, has a carriage, to which the handler is fixed. The horizontal truss is adapted to slide along at least two longitudinal guides rigidly fixed to the supplying modules of the external rows, which define the horizontal extension of the store. Each module is rigidly fixed to the flooring structure.

Abstract: A pistol having a handle piece, a slide that is movable on the handle piece along guides, and a barrel. Provided in the handle piece is a blocking device for the forward movement of the barrel, where the blocking device has a retaining platelet that is movable in a slot and is under the action of a spring, for a barrel projection. A spring platelet is provided in the slot between the spring and the retaining platelet, where the spring platelet is designed such that it can be partially extracted from the slot transversely with respect to the center plane of the pistol. In this extracted position, the spring platelet is pivotable, together with the retaining platelet, against the force of the spring, with the result that the retaining platelet passes out of the movement path of the barrel projection and the slide can be withdrawn forward.

Abstract: A magnetic shield for a locking device such as a gunlock having a first portion and a second portion configured for controlled movement with respect to the other portion and for being held in a fixed and locked position vis-à-vis each other. At least one of the first and second portions includes an electromechanical locking mechanism including a solenoid and solenoid activated spring loaded pin configured, in a first position, for preventing the first and second portions from moving with respect one another and in a second position for allowing the first and second portions to move vis-à-vis one another. A magnetically conducive shield is disposed on or in at least one of the first and second portion that includes the solenoid locking mechanism, for preventing an unauthorized magnetic field from causing the solenoid to retract the spring loaded pin thereby allowing the locking device to be opened.

Abstract: A firearm with a housing, a barrel fastened to the housing, a bolt for closure of a chamber provided in barrel, and a hammer mechanism to operate a firing pin arranged in the bolt. The hammer mechanism contains a hammer strut arranged between the firing pin and a cocking piece, offset parallel to the firing pin.

Abstract: A fast-attaching, self-aligning, easily adaptable and preferably tool-less suppressor adapter. The novel adapter attaches to the barrel of a firearm while precisely aligning the barrel and adapter using a set of compression feet equidistantly spaced around the perimeter of the adapter. The device is adapted to attach to a wide range of barrel diameters via an easy to fit and inexpensive to manufacture fitment sleeve. Thus, the adapter can be manufactured in a single size and work with most firearms. In addition, the device attaches to the smooth section of barrel thereby eliminating the need for permanently modifying a firearm by threading the barrel.

Abstract: A device that can hold a firearm can be used to prevent the firearm from being damaged, make the firearm aesthetically appealing, absorb the heat generated during use of the firearm, and reduce kick-back generated by the firearm. The device can include an inner portion, an outer portion, and magnets between the inner portion and the outer portion. The outer portion of the device can be made of a friction resistant material, which enhances durability to endure contact with items such as a gun rack or a stabilizing object. The inner portion of the device can be made of a soft material that can be used to cushion the firearm, and optionally clean the firearm. Related methods and products are also described.