Abstract: A cooling apparatus for introducing a coolant fluid into a weapon barrel through a breech end thereof for cooling internal wall faces of a loading chamber of the barrel. The cooling apparatus includes a bellows having a circumference provided with a plurality of holes. The bellows has a retracted state and an elongated, tubular expanded state and is introducible into the weapon barrel in the retracted state. The cooling apparatus further has a coolant driving arrangement coupled to the bellows for introducing the coolant into the bellows to place the bellows into the expanded state and to force the coolant out of the bellows through the holes.

Abstract: A method and apparatus for retaining an insulation blanket in its installed position on the inner surface of a fan coil door in the vicinity of a negative pressure created by a blower assembly within the fan coil. A bracket is secured to the lower edge of the blower assembly access door, the bracket having an upwardly extending flange that overlaps a significant portion of the insulation blanket to hold it in its installed position. A pair of obliquely extending tabs engage a shelf surface on the lower edge of the door to secure the bracket to the door without the use of fasteners.

Abstract: A housing for physically and thermally isolating the evaporator section of an air conditioning unit that is mounted on the cabin roof of a trailer, van, or motor home. The housing is molded in two sections with the lower section being secured to the base pan of the unit over return air duct and the supply air duct formed in the pan. The housing is divided into a blower chamber containing the supply air duct and an evaporator coil chamber containing the return air duct. A converging nozzle is molded integrally into the housing which connects the evaporator coil chamber with the blower chamber. Elongated vertically disposed openings are provided in the side walls of the housing having guideways for contacting the tube sheets of an evaporator coil that is mounted in the evaporator coil chamber to prevent air from passing around said coil. Internal surfaces are provided within the housing for efficiently turning the air flow through the housing 180.degree..

Abstract: This invention has an object of providing an air conditioner for a railway vehicle which can restrict a reduction in the introduced volume of outside air during a high-speed running of a vehicle and which can achieve lower noise. To achieve this object, the air conditioner for a railway vehicle includes an external cover 4 provided along the same surface as a vehicle surface, an air intake port 5 with a periphery provided on the external cover 4 and having a roundness in the cross-sectional configuration of an inside edge portion 12a of the intake port periphery, an air intake louver 11 disposed in the air intake port 5 to intersect a vehicle running direction, and an air exhaust port 3 for exhausting air that has been heat-exchanged, wherein an upper end surface 11a of the louver 11 is recessed from the surface of the exterior cover 4, and a cross-sectional configuration of the edge portion 11b of the upper end surface 11a has a roundness.

Abstract: In constituting an air conditioner case by bonding a first case member having a cooling air intake chamber and a second case member that is not provided with a cooling air intake chamber, the cooling air intake chamber is formed in a direction that is perpendicular to an air intake port and a blower mounting hole, opening via an opening portion. A mounting plate provided with a regulator is mounted at the opening portion. Thus, since a partitioning wall and barrier walls defining the periphery of the cooling air intake chamber can be formed at the same time as the formation of the case main body of the first case member, it is not necessary to further divide the first case member.

Abstract: A heat exchanger comprising a precooler and reheater core adjacent a chiller core, first heat transfer passages extending through both cores through which incoming air passes in a first direction, second heat transfer passages extending through the chiller core through which coolant passes in heat exchange relationship with incoming air and perpendicular to the first direction, and third heat transfer passages extending through the precooler and reheater core through which cooled air from the chiller core passes in heat exchange relationship with the incoming air and perpendicular to the first direction. A manifold contiguous with both cores conducts chilled air from the chiller core to the third set of heat transfer passages.Incoming air is chilled in the chiller core and thereafter exchanges heat with the incoming air in the precooler and reheater core to precool the incoming air to form water droplets and to raise the temperature of the chilled air to a usable temperature.

Abstract: This disclosure features a single package vertical air conditioner (both evaporator and condenser) in an easily installed cabinet. The cabinet includes a chassis above a dual level drain pan having a sump. The pan sits on a set of rubber feet to enable mounting. Side openings align with a telescoping two part plenum to connect to a louvered grill on the outside of a building to enable fresh air input and heat exchange.

Abstract: The combined air exchange and air conditioning unit is used for conditioning air from a conditioned space. The unit comprises an exhaust air chamber, a return air chamber, a supply air chamber, and a fresh air chamber. A supply blower is used for drawing air from inside the supply air chamber to the outside and an exhaust blower is used for drawing air from inside the exhaust air chamber. A central plate damper is provided for regulating air transfers between the chambers. The damper plate is movable within a position range defined between two extreme positions, the first position allowing a connection of the return air chamber with the supply air chamber and a connection of the fresh air chamber with the exhaust air chamber, the second extreme position allowing a connection of the return air chamber with the exhaust air chamber and a connection of the fresh air chamber with the supply air chamber.

Abstract: A computer system including a highly efficient forced air cooling subsystem is disclosed. The computer system includes an enclosure having a first (e.g., front) panel, a processor mounted upon a motherboard located within the enclosure, and a fan located within the enclosure for providing a flow of air through the enclosure. The fan draws air into the enclosure through an opening (e.g., an intake vent) in the first panel and produces a pressurized stream of air. The fan may be oriented such that the pressurized stream of air is directed toward the processor. The computer system may also include a plenum adjacent to the first panel, wherein the intake vent allows ambient air surrounding the enclosure to enter the plenum. The fan may be mounted within an opening in a wall of the plenum. The enclosure may also include a second (e.g., rear) panel opposed to the first (e.g., front) panel and having three openings (e.g., exhaust vents) therein.

Abstract: In constituting an air conditioner case by bonding a first case member having a cooling air intake chamber and a second case member that is not provided with a cooling air intake chamber, the cooling air intake chamber is formed in a direction that is perpendicular to an air intake port and a blower mounting hole, opening via an opening portion. A mounting plate provided with a regulator is mounted at the opening portion. Thus, since a partitioning wall and barrier walls defining the periphery of the cooling air intake chamber can be formed at the same time as the formation of the case main body of the first case member, it is not necessary to further divide the first case member.

Abstract: An air conditioner includes suction grill for sucking the air in a room, a front panel including an inlet port for sucking the air from the suction grill inside and a blowout port for blowing the air out into the room, a heat exchanger for working heat exchange of the air, and a blower for circulating the air, wherein a concave air passage for room temperature detection is formed on the front face of the front panel, and an air suction port for sucking air for room temperature detection is formed in suction grill at an opposite part to air passage.

Abstract: An air conditioning installation for the cabin of a motor vehicle comprises an air treatment and distribution unit having an upstream chamber containing a fan and a downstream chamber containing distribution valves for distribution of treated air to the cabin. The two chambers are separated by an evaporator, through which air is driven by the fan into the downstream chamber. A collector for recovery of condensates is located below the evaporator and drains to outside the vehicle. The installation includes control means arranged to operate an automatic scavenging cycle immediately prior to the start of a period of air conditioning operation. This cycle consists in closing all the distribution valves and then running the fan for a predetermined scavenging period so as to drive the stale air out of the interior of the unit.

Abstract: A refrigerator includes a fresh food compartment, a freezer compartment defined by inner walls and an outer case respectively, an insulation barrier separating the compartments, and doors for providing access to the compartments. A passageway is formed in the barrier for providing refrigerated air to the fresh food compartment. A connecting duct diverges from the passageway and extends forwardly towards the front portion of the fresh food compartment. A door duct communicating with the connecting duct when the door is closed is coupled to the door. As a result, the fresh food compartment and door-adjacent portions of the fresh food compartment are promptly and uniformly cooled.

Abstract: A cold air circulation device and method for a refrigerator, the refrigerator including a refrigerating compartment, a first door for providing access to the refrigerating compartment, a freezing compartment, a second door for providing access to the freezing compartment, and a cold air supply unit for supplying a cold air to the refrigerating and freezing compartments. The air circulation device and method include a first door duct formed within the first door, the first door duct including at least one inlet formed at a lower portion of the first door for receiving a circulated air from the refrigerating compartment, and an outlet formed at an upper portion of the first door for outputting the air from the inlet to the cold air supply unit.

Abstract: Containers for transportation of bulk cargo susceptible to spoilage, that have a controlled temperature profile. The refrigerated containers include opposed insulated side walls each of which include internal channels for carrying return air from the floor of the container upward into a plenum. Each plenum is closed at one end, and in fluid communication with a refrigeration unit at the other end to supply return air to the refrigeration unit. Refrigerated air is blown from the refrigeration unit into a central air distribution duct that extends longitudinally along the roof of the container. The central duct is supplied with a multiplicity of spaced apart apertures, and is preferably tapered from a widest point in the vicinity of the refrigeration unit. Thus, substantially equal refrigerated airflow can be obtained throughout the refrigerated container.

Abstract: In an air conditioner, a supporting base having a plurality of bearing cylinder portions is attached to an outlet of a housing of the air conditioner. Each shaft of wind horizontally direction plates is located in the outlet of the housing and is disposed in the bearing cylinder portion through first and second bearing bushes. The first bearing bushes hold the wind horizontally direction plates in a cantilever manner. A heat insulation material is adhered onto the supporting base. The wind horizontally direction plates can be easily attached to the air outlet after the heat insulation material is installed, and the moisture condensation is prevented.

Abstract: A compact refrigeration unit for use in a trailer container that includes a support frame that is mounted upon the front wall of the container. A power package containing a diesel engine coupled to a generator and an electrically driven compressor are mounted in the lower section of the frame. Front and rear compartments are situated in the upper section of the frame. The front compartment contains a condenser heat exchanger and a pair of fan units are mounted in the bottom of the front compartment for directing condenser cooling air over the power package and the compressor. An evaporator heat exchanger is mounted in the rear compartment along with a pair of fan units mounted in the top of the compartment. The evaporator heat exchanger and the associated fan units communicate with the container to circulate conditioned air through the container.

Abstract: An outdoor unit of a separate type air conditioner has suction ports and a blow-out port which can be disposed freely on the same side of the unit. Also, an outdoor unit of a one-side suction and exhaust type is excellent in static pressure characteristic, sufficient in air flow rate using only one blower, and is easy to install. Suction ports (8) are disposed at both sides in the front side of an outdoor unit main body (outer case 7), and a blow-out port (6a) is disposed in the center of the front side. A heat exchanger (3), an orifice (5), and one centripetal fan (1) are sequentially disposed behind the blow-out port (6a), thereby forming a draft circuit for sucking air from the suction ports (8) at the outer circumference of blades (1a) of the centripetal fan (1). The air is blown out ahead of the blades (1a) through the orifice (5) and heat exchanger (3). Therefore, since suction space is not required, the outdoor unit can be installed close to a wall.

Abstract: A cool air supply apparatus dispersedly supplies a cool air into a freezer compartment of a refrigerator. In the apparatus, an inner shell which surrounds the freezer compartment. A cross flow fan assembly is mounted under said inner shell inside the cooler chamber and blows cool air generated by an evaporator. An air distribution plate is spaced apart from the inner shell by a predetermined distance inside the freezer compartment. An air distribution plate includes a plurality of cool air outlet openings formed therein, each of the outlet openings being disposed apart from adjacent cool air outlet openings by a predetermined distance and defining a cool air supply duct with the inner shell, dispersedly supplies the cool air from said flow fan assembly into the freezer compartment through the outlet openings.

Abstract: A refrigeration and active damper control circuit uses a single-pole thermostatic switch to control the damper motor for the fresh food compartment of a refrigeration unit. When the thermostatic switch is closed, the control circuit connects current from the electrical power source directly to the damper motor through the thermostatic switch; when the thermostatic switch is open, the control circuit connects current from the electrical power source through the evaporator fan motor and then through the damper motor. The damper motor has an electrical resistance substantially larger than that of the evaporator fan motor, so that during the latter series connection of the evaporator fan motor and damper motor, a sufficient voltage drop develops across the damper motor so that the damper will be closed by the damper motor.

Abstract: The invention relates to a wall air conditioning apparatus for a control panel, with a fan and a lamellar heat exchanger, featuring a box-like housing with an upper inlet opening and a lower outlet opening in the wall that faces the control panel, whereby the fan is arranged behind the inlet opening and the lamellar heat exchanger is arranged under the fan and over the outlet opening at an acute angle to this wall. For improved ventilation and drainage of condensation water, it is provided that the lamellae of the lamellar heat exchanger are at an acute angle to the floor of the housing and drop off toward the wall that faces away from the control cabinet, and that the floor of the housing is provided with a drain for condensate.

Abstract: A method and apparatus for conditioning air is disclosed which includes a housing and a first fan for drawing return air from an enclosure and returning at least some of the return air to the enclosure at a first location. The housing includes a make up air opening which allows make up air from the atmosphere to enter the housing for mixture within the housing with the return air for discharge by the first fan to the enclosure. The housing also includes air drying apparatus and a second fan for selectively drawing some of the make up air and the return air from the housing through the air drying apparatus and supplying the thus dried air to the enclosure at a position remote from the first location.

Abstract: An air inlet and damper arrangement. The arrangement comprises a system housing with an external wall having a fresh air inlet; and an inlet air enclosure located within the system housing adjacent the external wall and arranged about the air inlet. The enclosure has an aperture connecting the interior of the enclosure with the interior of the system housing; and a damper sized to cover the aperture and pivotable within the small enclosure between a position covering the aperture and a position uncovering the aperture.

Abstract: This invention provides an air blowing direction adjusting apparatus for an air conditioner providing any desired blowing directions for a heat-exchanged air to be discharged indoor, the apparatus including a dynamic force generating unit mounted upon one side of a main body of the air conditioner and having a shaft, cams coupled to the shaft and rotated in a forward or reverse direction with the drive of the dynamic force generating unit, moving units disposed to bring into contact with the cams for conversion of rotary motions of the cams into linear motions of the moving units, whereby the air blowing direction adjusting unit is rotated, and elasticity units coupled to one side of the moving means to resiliently operate on the moving units.

Abstract: An energy transfer system for a household refrigeration appliance. The energy transfer system includes a first venting system within the refrigeration appliance for cooling a cooling storage compartment and a second venting system within the refrigeration appliance for cooling at least one component of a refrigeration system which cools the cooling storage compartment, and a first and second set of conduits for enabling the transfer of outside air into, through and out of the first and second venting system. In one form of the present invention, the system may also include a thermostatically actuated valve for enabling outside air into, through and out of the compartment in response to a predetermined temperature.

Abstract: An arrangement for reducing the humidity content of a gaseous medium, in particular air, has a cooling circuit. In order to increase its efficiency, an arrangement of this type is linked to a cooling system (10) known per se and has an evaporator (11) designed as a hollow body (16). The evaporator (11) has a pipe coil (17) through which a coolant, for example freon, can flow and a series of parallel ribs (18), preferably perpendicularly to the pipe coil (17), between which the gaseous medium is led in a first direction as a gas stream. The hollow body (16) is enclosed in an outer housing (12) forming an intermediate space (20) in which the gas stream is led in a second direction opposite to the first.

Abstract: An air conditioner including an air intake vent, an air blow-off vent for blowing off air which has been heat-exchanged, air-flow direction changing blades which are disposed at the air blow-off vent and serves to change the air-flow (blow-off air) direction, an opening portion through the outside air is supplied from the outside into a room, a closing member (damper) for selectively closing the opening portion, and an open/close operation member which is disposed in a gap between the air-flow direction changing blades and allows the closing member to selectively open or close the opening portion. When the outside air is supplied through the opening portion into the room, a finger is inserted into the gap to move the open/close operation member in a direction along the gap, whereby an outside air work can be simply performed without detaching the front panel from the air conditioner.

Abstract: A tunnel freezing system employs multiple high velocity refrigerated air impingement jets to quick freeze food products such as hamburger patties and fish or chicken filets. Ultra high molecular weight polyethylene blocks are provided with a multiplicity of internal jet nozzles. These blocks are located in air ducts located above and below a conveyor belt so that the topsides and bottomsides of food products are impinged with the high velocity jets of refrigerated air so as to break up the boundary layer around the products to effect a much higher rate of heat transfer. A dual conveyor line employs direct drive centrifugal fans to deliver high pressure refrigerated air to the air ducts. The air ducts are spaced apart so that return air can freely return to be re-refrigerated after impinging on the food products.

Abstract: A single package heat pump unit is field-reconfigurable from a horizontal discharge configuration to a top discharge configuration. A supply panel covers the top and upper part of the back wall, and contains a supply vent in a vent wall, with a blank wall joining it at a ninety degree crease. The supply panel can be removed and installed in the top discharge position, using standard fasteners.

Abstract: Apparatus for cooling a fluid. The apparatus has an ice storage reservoir (5) and tubes (12, 9) by which a cooling fluid or a cooled fluid may pass through the reservoir (5), where the fluids may exchange heat with the ice. At least one and preferably both of the fluids are air. The fluids may circulate in the storage reservoir (5) either independently or alternately, in which case the same fluid can alternately function as the cooling fluid and the cooled fluid. The apparatus is consequently simplified and therefore more reliable.

Abstract: A system for cooling employee and customer-occupied area of a commercial establishment of a type having an internal refrigerated inventory storage compartment includes a water reservoir located within the refrigerated compartment. Included is an assembly for continually supplying a portion of water from the reservoir to an input of a heat exchanger external of the refrigerated compartment. Further included is an assembly for, after circulation of water through the heat exchanger, return of the water to the water reservoir within the refrigerated compartment. The system also includes an assembly for inputting air external of the refrigerated compartment through the heat exchanger to transfer the air's thermal values to the circulated water. Further provided are a fan and ductwork sub-system for distributing resulting cooled air outputted from the heat exchanger to the employee and customer-occupied areas of the establishment.

Abstract: An air conditioner has rotatable first and second deflectors provided in an outlet for discharging conditioned air. The first deflector is rotatable about a substantially horizontal axis so as to variably deflect the conditioned air in vertical directions. The second deflector is rotatable so as to block a breadthwise portion of the outlet while forming an air passage in the remainder breadthwise portion of the outlet. The first and second deflectors are rotatable independently of each other.

Abstract: An air-conditioning apparatus includes an air-conditioner and an oxygen ratio increasing device. The air-conditioner has an indoor unit having an indoor heat exchanger and arranged in a room to be air-conditioned, and an outdoor unit having an outdoor heat exchanger and arranged outdoors. These units are connected to each other through a coolant pipe. The increasing device has an oxygen ratio increasing mechanism for producing oxygen-ratio increased air having a high oxygen concentration, and an air supply pipe for supplying the produced oxygen-ratio increased air into the room. The mechanism is arranged in the outdoor unit, and includes an adsorbing material for adsorbing nitrogen in air to produce the oxygen-ratio increased air and an air compressor for supplying air to the air supply pipe through the adsorbing material.

Abstract: A method, system and apparatus is disclosed for rapidly cooling and simultaneously maintaining a high moisture content in freshly slaughtered meat products and the like placed in a controlled environment chamber through which preconditioned air is circulated. This is achieved by limiting the air temperature rise by utilizing air flow rates past the product at a level such as to cause the air to increase in temperature from entry into the chamber to exit from the chamber by no more than approximately two degrees F. and by providing a cooling apparatus which reduces the temperature of the air while removing free water from it yet is capable of maintaining the relative humidity of the air at no less than ninety percent.

Abstract: A pressure relief port for relieving the pressure within an enclosure having a wall with first and second sides and a first opening therethrough. The pressure relief port includes a tube having a conduit therethrough sized to fit in the first opening in the wall to extend essentially intermediate the first and second sides of the wall. First and second end caps having respective openings therein are sized to fit on the first and second walls respectively, about the first opening. The tube extends into the first and second end caps. A flexible diaphragm extends substantially across the conduit in the tube for regulating air flow and is displaceable between a first position where the diaphragm substantially closes off the conduit to air flow and a second position where the diaphragm is displaced by air pressure to permit air to flow through the conduit to equalize pressure on opposite sides of the wall.

Abstract: Products to be frozen are conveyed through an insulated horizontal tunnel having a plurality of individual cooling zones, each equipped with a radial fan rotating in a horizontal plane. Cryogenic liquid refrigerant is sprayed into one or more of the cooling zones in the central region of the tunnel, upwardly into the rotating fans and the thus vaporized refrigerant caused to flow in a downward direction in a recirculating pattern into contact with the conveyed products by vertical partitions between contiguous zones. The vaporized refrigerant flows from the supercold zone of liquid introduction beneath the edges of the partitions in two directions, outwardly towards the opposite ends of the tunnel in substantially equal amounts.

Abstract: Improved methods and apparatus are provided for drying polish or brightener applied to fingernails. A compact housing is provided with an opening for receiving the hand of the user, and a thermoelectric refrigeration unit is provided within the housing for cooling the air below ambient temperature. Air is recirculated by a fan in a portion of the housing, and a deflector directs the cool air away from the opening and onto the fingernails.

Abstract: An apparatus for reducing the temperature of articles to the cryogenic state in reducing the temperature of embryos at a controlled and predetermined rate is disclosed comprised of a housing defining an insulated cooling chamber employed in association with support means for removably suspending the embryos within a chamber. A gaseous medium, such as, air circulates along a closed path through the chamber so that the embryos are disposed in its path and a heat exchanger including a heat transfer medium is positioned in the flow path of the gaseous medium together with a temperature sensor so that the rate of cooling may be programmed and regulated automatically by correlation of the temperature sensor with the heat exchange medium.

Abstract: A practice for gas cooler assembly fabrication wherein a first plate comprised of carbonizable material is provided in first regions with a conductive first material and in second bordering regions with an adhesive material and the first plate and a second plate comprised of carbonizable material are brought into adjacent relationship and carbonized by heating to thereby form the completed assembly.

Abstract: There is disclosed an air dryer system for removing moisture from compressed air. The system includes a coil means including a plurality of axially spaced convoluted tubing sections wherein each tubing section has an inlet adapted to be coupled to the compressed moist air to be dried and an outlet. The system further includes a cooling means for reducing the temperature of the moist air within the tubing sections for causing the moisture within the compressed air to condense for forming moisture laden air at the outlets, and a moisture separater directly connected to each of the tubing sections for removing the condensed moisture from the moisture laden air to thereby provide dried air for use by pneumatically operated or controlled tools or the like.

Abstract: A lever for operating a damper door of an air conditioner includes a rotatable shaft extending through an orifice of a wall in the air conditioner, the shaft having a pair of spaced collars for receiving therebetween the edges of the wall which define a slot receiving the lever. One collar is slightly bowed and has a tooth which engages an edge of the orifice to hold the lever in place in the wall when the shaft has been positioned in the slot.