Abstract: A household appliance includes a warming drawer housing having an interior chamber and a warming drawer module in the interior chamber. The warming drawer module includes a glass heating element forming a floor surface of the warming drawer module for receiving items to be warmed, a thermostat having a sensor measuring a temperature of the glass heating element, the thermostat being disposed under the glass heating element, and a thermally conductive layer disposed between an underside of the glass heating element and the sensor of the thermostat.

Abstract: A cooktop includes a boundary element which borders the cooktop at least on one side, and a camera for recognition of operating gestures, wherein the camera is arranged in a recess of the boundary element.

Abstract: A universal convection manipulation device for insertion into a conventional oven and a method of use are provided. The universal convection manipulation device includes a substantially rectangular flexible sheet of material including an intermediate body portion. The intermediate body portion includes a first flange arranged along an end of the intermediate body portion and a second flange arranged along an opposite end of the intermediate body portion. The flexible sheet of material is capable of being flexed into an arched shape and sized to be insertable into various sized conventional ovens depending on the amount of flexure of the sheet of material. The first flange and the second flange are shaped so that they are capable of being inserted and held with a tension against a sidewall support structure of a conventional oven when the flexible sheet of material is flexed into the arched shape and released during installation within the conventional oven.

Abstract: A household cooking appliance include a housing having an oven chamber accessible through an opening, the opening having a seal surrounding a perimeter of the opening, and a door covering the opening and moveable about a hinge between an open position and a closed position. The door includes an outer door skin forming an outer surface of the door, the outer door skin including an outer glass panel, a full glass inner panel forming an inner surface of the door, the full glass inner panel abutting the seal when the door is in a closed position, a middle glass panel disposed between the outer glass panel and the inner glass panel, and outer glass support means for supporting the outer glass panel on the outer door skin.

Abstract: An architectural heat and moisture exchanger. The exchanger defines an interior channel which is divided into a plurality of sub-channels by a membrane configured to allow passage of water vapor and to prevent substantial passage of air. In some embodiments, the exchanger includes an opaque housing configured to form a portion of a building enclosure, such as an exterior wall, an interior wall, a roof, a floor, or a foundation.

Abstract: An air conditioning system comprising an air mover for circulating air to a space; a vapor compression circuit including a compressor, a condenser, and an expansion device; an evaporator; an air-reheat heat exchanger; and a control system. In one embodiment, the evaporator receives refrigerant from the vapor compression circuit and provides a cooled stream of air to the space. The air-reheat heat exchanger is positioned to receive the cooled stream of air. In one embodiment, the vapor compression circuit, the evaporator, and the air-reheat heat exchanger are operable in combination to provide a plurality of modes of operation. In a preferred embodiment, the control system is configured to compute a Sensible cooling-to-Total cooling (S/T) process ratio and to control an operation of at least one of the vapor compression circuit, the evaporator, and the air-reheat heat exchanger. A method of manufacturing the air conditioning system is also provided.

Abstract: The invention relates to an inerting method as well as an inerting system (1) to set and/or maintain a reduced oxygen content in an enclosed room (2), wherein a gas separation system (3.1, 4.1; 3.2, 4.2; 3.3, 4.3) is provided which separates off at least a portion of the oxygen from an initial gas mixture provided in a mixing chamber (6) and by so doing, provides a nitrogen-enriched gas mixture. In order to optimize the operation of the inerting system (1), the invention provides for a portion of the air to be withdrawn from the enclosed room (2) and admixed with fresh air in the mixing chamber (6).

Abstract: An indoor air quality (IAQ) control module may be provided for sensing and controlling the indoor environmental quality (IEQ) of a zone in a building. The IAQ control module may receive a supply air sample from a supply vent and a return air sample from a return vent, where the air samples are taken using the pressure created by a blower within the HVAC system. The IAQ control module may then compute a differential value for each of the sensed one or more air parameters and generate a control signal or command based on at least the differential value(s). The IAQ control module may then communicate the control signal to an airflow control device to control the airflow to and/or from the zone.

Abstract: A door opener for a linear bar grille.

Abstract: The present invention provides a moving device and dust cover. The moving device includes a moving cart and a dust cover; the dust cover forming a dust-prevention space over the moving cart; the dust cover including an air-driver device, a vent tube and an outer cover; the air-driver device being disposed outside of outer cover for sucking in outside air and driving air into vent tube; the vent tube being connected to air-driver device and outer cover, for flowing of the air sucked in by air-driver device into the dust-prevention space formed by outer cover so that the space forming a positive pressure with respect to outside of outer cover; the outer cover performing filtering on the air flown in through vent tube. As such, the present invention accomplishes a better cleanroom result and provides easy disassembly and flexible usability to reduce the cost.

Abstract: The present invention provides a cleanroom for storing glass substrates, and which comprises an exhaust is disposed on a bottom floor of the cleanroom. A first filtering device is arranged on a ceiling of the cleanroom to provide purified airflow to the cleanroom. A second filtering device is arranged on the bottom floor of the cleanroom jointly to create a vertical airflow with the first filtering device so as to reduce the turbulence within the cleanroom. The present invention can readily resolve the prior art issue in which the airborne particles stirred by turbulence within the cleanroom cannot be effectively eliminated.

Abstract: A dynamic double-circuit in-Line heater is disclosed, as well as a machine containing the heater and a method of operating the machine.

Abstract: A hot water supply apparatus associated with a heat pump is provided. The hot water supply apparatus performs a hot water supply operation using a high temperature refrigerant that has been discharged from a compressor, and simultaneously performs an indoor heating operation using a two-stage refrigerant cycle. This allows the apparatus to supply hot water while simultaneously providing heating/cooling to an indoor space.

Abstract: The invention provides a method of using a water heater arranged for heating an aqueous liquid wherein the water heater comprises a heating element to heat aqueous liquid in the water heater. The method comprising (a) heating aqueous liquid in the water heater with the heating element, wherein the heating element is in contact with the aqueous liquid; and (b) applying a first AC voltage between the heating element and a counter electrode and applying a second AC voltage between the heating element and the counter electrode, wherein the second AC voltage has a second AC frequency selected from the range of 0.02 Hz-5 Hz and wherein the ratio between the first AC frequency and the second AC frequency is 2 or more.

Abstract: A startup system for a solar boiler includes a main fluid circuit having a plurality of solar boiler panels for generating power from solar energy. An auxiliary fluid circuit is selectively connected in fluid communication with the main fluid circuit by a plurality of valves. An auxiliary boiler is operatively connected to the auxiliary fluid circuit. The valves connecting the auxiliary fluid circuit to the main fluid circuit are configured to be opened and closed to selectively place the auxiliary boiler in fluid communication with portions of the main fluid circuit to supply heat to the portions of the main fluid circuit in preparation to produce power from solar energy.

Abstract: A dual-exposure heat absorption panel is disclosed, which can be used in a solar receiver design. Generally, the heat absorption panel includes a tube panel through which a heat transfer fluid is flowed to absorb solar energy from heliostats that are focused on the tube panel. A structural support frame surrounds the tube panel. A stiffener structure runs across the exposed faces of the tube panel. The headers and other support structures on the periphery are protected by use of a heat shield.

Abstract: Provided is a light-weight, easy to install, use and remove solar collector that may be manufactured inexpensively from readily available common materials, and which may be installed, removed, moved, and reinstalled almost anywhere by almost anyone without special tools or skills. In one embodiment, the solar collector comprises one or more collection tubes formed from attaching clear or substantially translucent material, such as clear vinyl, along the edges and over the top of dark colored or otherwise solar-energy-absorbant material, such as black polyethylene plastic, black vinyl-coated polyester, or any other suitable material, which may be insulated by an insulative layer. A dark-colored or otherwise solar-energy-absorbant air-permeable layer may also be located in the collection tube to increase heating of the air flowing through the collection tube. In addition to the solar collector is a fan, which may take the form of a forced-air window unit with thermostatic controls.

Abstract: A concentrating solar collector that includes a target, a plurality of mirror assemblies, and a master tracking assembly that controls the mirror assemblies is disclosed. The mirror assemblies are fixed at a plurality of distinct locations with respect to the target, each mirror assembly includes a moveable mirror and a tracking assembly. Each tracking assembly includes a target member, a sun member, and a tracking actuator. The target member is fixed relative to the target such that the target member points at the target. The sun member is moveable relative to the target such that when the sun member points to the sun, light from the sun is reflected onto the target. The master tracking assembly moves each of the sun members such that the sun members simultaneously point at the sun. The tracking actuators are mechanical devices that are coupled to the master tracking assembly by a mechanical linkage.

Abstract: A renewable energy system comprising a solar panel that is adapted to be mounted on a structure and convert solar energy into electrical energy, a windmill that is adapted to be mounted on the structure and convert wind energy into electrical energy, and a means for shutting down the renewable energy system that is adapted to automatically shut down the system in the event of an emergency. A method for a renewable energy system comprising providing a renewable energy system and converting renewable energy into electrical energy.

Abstract: Embodiments described herein relate to a method of producing energy from concentrated solar flux. The method includes dropping granular solid particles through a solar flux receiver configured to transfer energy from concentrated solar flux incident on the solar flux receiver to the granular solid particles as heat. The method also includes fluidizing the granular solid particles from the solar flux receiver to produce a gas-solid fluid. The gas-solid fluid is passed through a heat exchanger to transfer heat from the solid particles in the gas-solid fluid to a working fluid. The granular solid particles are extracted from the gas-solid fluid such that the granular solid particles can be dropped through the solar flux receiver again.

Abstract: An interlocking system for connecting photovoltaic module frames to a torque tube, including: (a) an interlock dimensioned to be positioned between the sides of two adjacent photovoltaic module frames; (b) a pair of couplings or flanges, wherein the couplings or flanges connect the interlock to both of the adjacent photovoltaic module frames; and (c) a U-lock connected to the interlock, wherein the U-lock is dimensioned to be connected to a torque tube.

Abstract: A solar energy collection system comprises a frame for mounting the system on a suitable substrate and a plurality of solar panels disposed adjacent to one another on the frame. A first set of the solar panels are movable relative to a second set of the solar panels, for tracking movement of the sun during the day. Solar panels of the first set are arranged in alternating fashion with solar panels of the second set. In some embodiments of the invention, the panels in the second set of solar panels are stationary. The second set of solar panels, in some embodiments, are disposed substantially flat, relative to the frame and the substrate on which the frame is mounted. In some embodiments, differing from those in which the second set of solar panels are stationary, the second set of solar panels may be arranged to be movable relative to the first set of solar panels.

Abstract: A supporting assembly for a solar cell lamination includes a frame member, a column member, and an adapter member. The frame member includes a first flange, a second flange, and a first wall. The second flange is substantially parallel with the first flange. The first flange, the second flange and the first wall cooperate to define a space for accommodating the solar cell lamination. The column member is used for supporting the frame member, in which the column member has an end surface facing the frame member. The end surface has a proximal half portion and a distal half portion respectively proximal and distal to a central axis of the frame member, and a location of a vertical projection of the first wall on the end surface falls on the distal half portion. The adapter member is used for connecting the column member and the frame member.

Abstract: An appliance employing a coolant system that includes a compressor having a housing, a cooling capacity, and operably connected to typically two evaporators for regulating a temperature of the first compartment and a temperature of the second compartment; a shared coolant fluid connection system; a coolant fluid spaced within the shared coolant fluid connection system; and a switching mechanism operably connected to a first fluid conduit that provides shared coolant fluid to the compressor at a first pressure level and a second fluid conduit that provides shared coolant fluid to the compressor at a second pressure level where the second pressure level is less than the first pressure level wherein the switching mechanism is capable of regulating and switching shared coolant flow to the compressor from the first fluid conduit and the second fluid conduit.

Abstract: The present invention relates to refrigerant compositions containing trans-chloro-3,3,3-trifluoropropene (1233zd(E)) useful for chiller applications and processes using 1233zd(E).

Abstract: Apparatus for thermal management of a precursor for use in substrate processing are provided herein. In some embodiments, an apparatus for thermal management of a precursor for use in substrate processing may include a body having an opening sized to receive a storage container having a liquid or solid precursor disposed therein, the body fabricated from thermally conductive material; one or more thermoelectric devices coupled to the body proximate the opening; and a heat sink coupled to the one or more thermoelectric devices.

Abstract: Provided is an air conditioner. The air conditioner including a compressor, an outdoor heat exchanger, an indoor heat exchanger, and an expansion device includes a supercooling device for supercooling a refrigerant condensed in the outdoor heat exchanger or the indoor heat exchanger, an injection passage through which the refrigerant passing through the supercooling device is introduced into an injection inflow part of the compressor, a bypass passage extending from the injection passage to a suction part of the compressor to bypass the refrigerant, and a passage opening/closing part disposed in at least one of the injection passage and the bypass passage to selectively block a flow of the refrigerant.

Abstract: An ice mold configured to be placed into a glass or cup such that a side wall void is created between the outer wall of the ice mold and the interior wall of the glass or cup. The exterior shape of the ice mold generally mirrors the interior shape of the cup or glass. Liquid such as water or juice is placed into the glass or cup after the ice mold is inserted, thereby forcing the liquid into the side wall void, following which the combination of the ice mold and glass or cup are frozen. Once the liquid freezes, the ice mold is then removed leaving an ice wall on the interior wall of the glass or cup. The ice mold may feature one or more attachment mechanisms or an outer rim in order to secure the mold to an upper rim of the glass or cup.

Abstract: An air discharge structure for a packaged air conditioner includes a front air outlet (7) disposed on the mid-upper part of a body (1), and an upper panel (9) mounted on the front air outlet (7) and slidable up and down along the body (1). An upper decorative panel (10), height of which is matched with the stroke of the upper panel (9), is mounted above the front air outlet (7) and slidable back and forth along the body (1). An upper and lower limit mechanism for the upper decorative panel is disposed between the upper decorative panel (10) and the body (1). The application can facilitate increasing the range of air supply in the air conditioner and maintain stable air supply.

Abstract: Systems and methods for low ambient air temperature cooling in air-source based heat pump systems wherein an outdoor heat pump unit includes a discharge hood positionable over its fan. The hood including a damper that is openable and closeable as a function of outside temperature. The outdoor unit may also include wind deflectors positioned over the coil openings of the disclosure. During cooling operations below a low outside air threshold temperature, e.g., below 23° F., the damper assembly partially closes to reduce airflow across the condenser coil of the outdoor unit to a level below that which is possible at minimum fan speed. As the outdoor temperature continues to drop, the damper assembly continues to close to further reduce airflow.

Abstract: An elongated spine extends vertically within a refrigerated cabinet, freezer cabinet, or doors and includes ductwork for the transmission of fluids within the spine as well as operating power and/or electrical control or data signals. The spine includes a mounting channel having inwardly extending edges. Modules mate with the spine for the physical mounting of the modules at any desired location within the continuously extending channel and are provided with a flange which fits within the spine and mounts the module in a cantilevered fashion to the refrigerator. Such construction facilitates the distribution of fluids, such as hot or cold air within the refrigerator, and the manufacturing of a refrigerator by providing a readily attached spine and allowing modular construction of a refrigerator with infinite adjustability for the user.

Abstract: A handle assembly for mounting to a door of a refrigerator includes a main body member having first and second end portions separated by an intermediate portion. Each of the first and second end portions includes a cavity adapted to receive an end insert formed of soft material. Each of the end inserts includes an attachment member. The handle is mounted to a front face of the door through interengagment of the attachment members and base members provided on the door without scratching the surface of the door.

Abstract: A refrigerator includes: a refrigerator main body having a cooling chamber; a cooling chamber door for opening and closing the cooling chamber; a shelf assembly provided within the cooling chamber such that a height thereof is adjustable; and a basket provided in any one of the refrigerator main body and the cooling chamber door such that a height thereof is adjustable. A space of the refrigerator main body or the cooling chamber door can be utilized to facilitate receiving and keeping food items.

Abstract: A divider assembly for a refrigerated drawer includes a plurality of dividers to form a plurality of adjustable storage compartments. Each of the dividers has a slot formed therein to receive a guide portion of another divider. The guide portions of a first divider are configured to slidably engage the guide portions of a second divider. The slots form openings which allow a cooling airflow to circulate between the storage compartments.

Abstract: A dryer dries particles, wherein the dryer comprises two circular decks mounted substantially horizontally and rotating in opposite directions relative to one another about a same vertical axis, Z, the surface of said decks being perforated and permeable to air, steam and water, a means for blowing hot gas in a flow substantially parallel to the axis Z, passing through the second deck before passing through the first deck, means for distributing said particles to be dried on the first and second decks and means for recovering the particles after a rotation of each deck, and a means for transferring the particles collected from the first deck by the recovery means to a second distribution means suitable for distributing said particles along a radius of the second deck.

Abstract: A reduced pressure drying method and device for a substrate are presented. Firstly, a substrate is placed in a sealed space; then the surface to-be-dried of the substrate is partitioned into a predetermined number of sealed regions; thereafter, the sealed regions are subjected to pressure reduction through gas extraction; finally, the sealed regions are dried through gas insufflation, and then the substrate is taken out from the sealed space. The method can perform reduced pressure drying to various-sized substrates, ensuring uniform pressure and humidity and avoiding formation of reduced pressure drying speckles.

Abstract: A rotary drum (302) for use within a vacuum chamber (212) in a vacuum freeze-dryer (204) for the bulkware production of freeze-dried particles is provided. The drum (302) is in open communication with the vacuum chamber (212) and comprises a main section (304) terminated by a front plate (306) and a rear plate (308), the rear plate (308) is adapted for connection with a rotary supporting shaft (312) for rotary support of the drum (302), and the rear plate (308) is permeable for sublimation vapor from freeze-drying the particles.

Abstract: A furnace is provided suitable for metallurgical processes, comprising at least one section comprised of refractory bricks with an outer shell plate adjacent to the refractory bricks, including exterior bricks whose external faces adjacent the shell plate define gaseous media cooling channels extending along the exterior of the refractory bricks between them and the shell plate. The furnace further comprises cooling plates within the cooling channels and joints between the successive courses of bricks. Advantageously, the conductivity of the cooling plates is at least 5 times the conductivity of the refractory lining into which it is inserted. Suitable materials include copper and copper-based alloys, brasses, bronzes, cast irons, aluminum alloys, silver, high-temperature steels, refractory metals and their alloys, graphite, silicon carbide, and aluminum nitride.

Abstract: Impact tool and method for a hammer device that includes impact tool housing and tubular piston structured and arranged for axial displacement in impact tool housing via pressure medium. Tubular piston has essentially radial pressure surfaces structured and arranged on opposite portions of tubular piston to be acted on with pressure medium. Grooves are formed in impact tool housing that are structured and arranged for a reversal of a direction of a pressure medium impingement on pressure surfaces and discharge or recirculation of medium. Grooves include a control recess formed in tubular piston and at least two control grooves for a shift of pressure medium impingement on pressure surfaces that are arranged axially offset in impact tool housing. A controller is structured and arranged to alternatively activate one of the at least two control grooves via connection channels.

Abstract: The invention relates to a method for controlling the thermal balance of a suspension smelting and to a suspension smelting furnace. The suspension smelting furnace, comprising a reaction shaft (1), a lower furnace (2), and an uptake (3), wherein the reaction shaft (1) having a shaft structure (4) that is provided with a surrounding wall structure (5) and a roof structure (6) and that limits a reaction chamber (7), and wherein the reaction shaft (1) is provided with a concentrate burner (14) for feeding pulverous solid matter and reaction gas into the reaction chamber (7). The shaft structure (4) of the reaction shaft (1) is provided with cooling means (8) for feeding endothermic material into the reaction chamber (7) of the reaction shaft (1).

Abstract: A chemical heat accumulator includes first- to Mth-stage heat storage units and a condensing part. Each heat storage unit includes a reaction vessel housing first reactant, a container housing second reactant, and a connection passage connecting the reaction vessel and the container for guiding the second reactant from the container to the reaction vessel. The connection passage is provided with an opening/closing member for opening and closing the connection passage. The reaction vessel of the Mth-stage heat storage unit is thermally connected with an object to be heated. The reaction vessel of a (N?1)th-stage heat storage unit is thermally connected with the container of an Nth-stage heat storage unit. M is an integer equal to or greater than 2, and N is an integer equal to or greater than 2 and equal to or less than M.

Abstract: A heat dissipating device includes a heat dissipating fin module, a second base, a third base, a heat pipe, a first sleeve and a fourth base. The heat dissipating fin module includes a first base and a plurality of first heat dissipating fins. A recess is formed on the second base. The third base is disposed in the recess. The heat pipe includes a heat dissipating segment, a heat absorbing segment and a connecting segment connecting the heat dissipating segment and the heat absorbing segment. The heat dissipating segment is disposed in the first base. The heat absorbing segment is disposed in the second and third bases and contacts the third base directly. The first sleeve at least covers the connecting segment. The fourth base is formed by a die casting process and covers peripheries of the first and second bases and the first sleeve.

Abstract: Heat transfer fluid in vapor only state is cycled through solar collector(s) (12) and a sensible heat storage medium (14) to transfer heat from the solar collector(s) (12) to the sensible heat storage medium (14). The heat transfer fluid is a liquid at ambient temperature, but substantially in the vapor state throughout the entire cycle when in operation.

Abstract: According to one embodiment of the present invention, a battery assembly comprises: a battery module comprising a plurality of unit batteries; an exterior case for housing the battery module in an internal space; and a heat-dissipating film which is inserted between the plurality of unit batteries and fitted tightly against each of the plurality of unit batteries, and is attached to the inside surface of the exterior case; and the heat-dissipating film comprises: first and second heat-dissipating layers which are formed of a thermally conductive material and discharge the heat of the unit batteries; and an adhesive layer which is formed between the first and second heat-dissipating layers and adheres the first and second heat-dissipating layers.

Abstract: An evaporator (168) in a vapor compression system (14) (168) includes a shell (76), a first tube bundle (78); a hood (86); a distributor (80); a first supply line (142); a second supply line (144); a valve (122) positioned in the second supply line (144); and a sensor (150). The distributor (80) is positioned above the first tube bundle (78). The hood (88) covers the first tube bundle (78). The first supply line (142) is connected to the distributor (80) and an end of the second supply line (144) is positioned near the hood (88). The sensor (150) is configured and positioned to sense a level of liquid refrigerant (82) in the shell. The valve (122) regulates flow in the second supply line in response to the level of liquid refrigerant (82) from the sensor (150).

Abstract: An indoor unit of an air-conditioning apparatus is provided, in which an air-conditioning condition changed based on a gesture corresponds to an air-conditioning condition displayed on a display device of a remote controller. With an indoor unit 100, when a user U1 performs a predetermined motion (S1-1), a controller 70 determines the motion of the user U1 (S1-2), recognizes that a gesture instruction condition is instructed (S1-3), controls a heat exchanger 4 and other devices based on the gesture instruction signal (S1-4), and causes the gesture instruction signal to be sent to a remote-controller communication device 85 (S1-5). When a remote controller 80 receives the gesture instruction signal (S1-6), the gesture instruction condition is displayed on a remote-controller display device 82 (S1-7), and buzzer sound (electronic beeper sound) is output from a remote-controller sound output device 83 (S1-8).

Abstract: The invention relates to a method for operating a circuit having a heat accumulator, having a coolant circuit, having a heat accumulator in a line of the circuit and having at least one valve and one pump, wherein, when the valve is open, the heat accumulator can be charged with coolant from the coolant circuit by means of the pump, or coolant can be discharged from the heat accumulator into the coolant circuit, wherein the charging or discharging of the heat accumulator takes place in an open-loop-controlled or closed-loop-controlled manner as a function of a temperature difference of a temperature of the coolant in the circuit and a temperature of the coolant in the heat accumulator.

Abstract: An apparatus is disclosed for supporting, rotating and advancing a rigid lance when cleaning the interior of a tube of a heat exchanger. The apparatus comprises a longitudinally extending aluminium body 10 defining a closed conduit 12 and a C-shaped channel 14 sharing a common partition wall and a rigid lance is located within the C-shaped channel. A first motor assembly 20 rotates the lance 26 and feeds water under pressure into the lance 26 through a rotary coupling 30. The first motor assembly 20 is slidable along, and guided by, the C-shaped channel 14, by a second motor assembly 30 which serves to advance and retract the lance 26. The second motor assembly 30 is connected to pull the first motor assembly in both directions along the C-shaped channel by a flexible drive element 34 having a run housed in the closed conduit 12.

Abstract: A feed ramp system for feeding cartridges into the chamber of a firearm. The feed ramp system includes a feed ramp insert having a body with at least one attachment tab projecting therefrom. The feed ramp insert is received within a mating recess formed in the receiver and is removably coupled to the receiver to enable replacement of the feed ramp insert. The feed ramp insert includes a pair of proximal ramp surfaces that align with distal ramp surfaces form at a breech end of the firearm barrel, to define a pair of feed ramps for directing cartridges into the chamber.

Abstract: A new interface for a magazine follower and floor plate is used to provide greater stability to the round stack and a more sturdy system overall. The floor plate is designed with two opposite legs, the rear being shorter than the front leg so as to facilitate travel throughout the magazine and clearing of accumulated dirt and debris. The floor plate, in one embodiment, utilizes a lock plate that is shaped and sized to become a shoe for the compressed spring and associated follower. In an alternate embodiment, the floor plate itself serves the purpose and, with provided teeth, directly fastens to the magazine casing at notches manufactured in the magazine wall for that purpose. Other enhancements to the magazine include at least one matrix of divots to provide a paint surface, an over-insertion stop and a lower rear geometry to aid in clearing debris and grit.