Abstract: A heat radiation shield has an electrically insulating support on which a mosaic of electrically conductive elementary layers is arranged on at least one side.

Abstract: A refrigeration compartment door for refrigerators, provided with a door duct capable of introducing cool air to the interior of a refrigeration compartment, is disclosed. The door includes a main body having an insulating layer therein and a door duct provided in the insulating layer. Also, the door duct has at least two more branch ducts, so cool air, introduced from a cabinet of a refrigerator to the door duct, is separately introduced into the branch ducts. An insulating member is mounted to the door duct and has a plurality of first discharging holes in order to allow the cool air to be discharged into the interior of the refrigeration compartment passing through the door duct. Thus, a wide temperature difference between the interior of the refrigeration compartment and the door duct is reduced by the insulating member.

Abstract: A kimchi storage device capable of fast fermenting kimchi, and once kimchi has been adequately fermented, of functioning as a cold storage therefor includes a main body provided with a refrigeration unit and a plurality of kimchi storage chambers, a heater and an evaporator installed on inner side walls in each of the kimchi storage chambers, at least one high and one low temperature sensors in each of the kimchi storage chambers and a control unit for controlling the evaporator and the heater in each of the kimchi storage chambers.

Abstract: The present invention provides a thermal insulator cabinet having high thermal insulating ability and long-term reliability as well as excellent energy-saving and maintenance properties. The thermal insulator cabinet includes a gas-tight container that is filled with a charging gas and a continuous spacing core and a gas-storage container that communicates with the gas-tight container and is filled with an absorbent for absorbing at least the charging gas, wherein the gas-storage container absorbs the charging gas to make inside of the gas-tight container in a state of reduced pressure.

Abstract: An expandable type refrigerator which is capable of coupling a plurality of refrigerating units or freezing units which each have an independent operational cycles and a predetermined size and is easily expanded at the site of refrigerator installation by coupling a plurality of the refrigerating units or freezing units, wherein each refrigerating unit or freezing unit is capable of controlling one micro-controller by using one power cord. The refrigerator includes more than at least two refrigerating units (or two freezing units) each of which is operable with a different operational cycle and which refrigerating units are coupled to each other at an installation site, a coupling apparatus for coupling the refrigerating units, one external power cord for supplying an electric power to the refrigerating units (or the freezing units), and an operational cycle controller for independently controlling the operational cycles of the refrigerating units (or the freezing units).

Abstract: A relatively inexpensive system and method for regulating the temperature of a cryogenic liquid in a storage vessel (2), such as vehicle refueling station, comprises inner and outer walls (6, 8) defining a inner chamber (12) for housing the cryogenic liquid. To provide a variable thermal resistance around the inner chamber, a thermal control fluid is disposed within an insulation space (10) between the inner and outer walls. A fluid conduit (30) has an inlet and outlet in fluid communication with the chamber and a heat exchanger coil (36) disposed within the insulation space. A control valve (38) allows the cryogenic liquid to flow through the fluid conduit so that the cryogenic liquid is in heat exchange relationship with the thermal control gas as the liquid passes through the coil (i.e., the cryogenic liquid cools and condenses the thermal control gas to reduce the control gas pressure).

Abstract: A vacuum insulator casing for thermal insulating between inside and outside of the casing. The vacuum insulator casing has an inner casing constructed at least two planer sections and a corner section located between the planer sections and an outer casing having a similar shape to the inner casing, which covers the inner casing having a space between them. The space the inner and outer casings is filled with a plurality of vacuum insulator panels and other insulator material. Each vacuum insulator panel has a gas tight outer package from which air has been evacuated and a low thermal conductivity material filled in the package. The vacuum insulator panels are sandwiched between the inner and outer casings so as to touch both casings.

Abstract: Heat insulation is provided for a refrigerator or freezer. The insulation includes a closed cell material, which is placed in a hermetically closed space (13) surrounded by a diffusion-tight shell. The space communicates with a vacuum source, and a gas diffuses through the cells five times faster than air gasses. The material does not achieve its full insulating properties until the refrigerator has been used.

Abstract: A cover for the outdoor unit of a split-system air conditioner is disclosed having a flexible shroud and a resilient protective panel disposed in the top of the shroud to protect the top of the unit against damage from falling objects. The protective panel may be formed with a downwardly opening recess covered by a rigid insert panel to provide added protection for the air conditioner motor mount, vanes or grille, or to provide clearance for upwardly projecting parts. A rigid cap panel coextensive with the resilient panel may also be used. The protective panel is retained within the top of the shroud by a retainer skirt having an elastic free edge extending below the perimeter of the protective panel.

Abstract: A refrigeration appliance having at least two refrigeration compartments, each compartment having its own access door, is provided wherein there is a first evaporator for the first compartment the first evaporator operating at a first pressure level and a second evaporator for the second compartment, the second evaporator operating at a pressure level higher than the first pressure level. There is a control device for directing refrigerant to a selected one of the evaporators from a condenser and for preventing a flow of refrigerant into the first evaporator when refrigerant is being directed into the second evaporator to cool the second compartment. Around the first compartment is placed insulation having a higher thermal resistance than that placed around the second compartment since the first compartment is kept at a lower temperature that the second compartment. A phase change material may be used in association with one or both of the evaporators.

Abstract: A refrigeration appliance having a vacuum insulation system wherein a combination of vacuum thermal insulating panels and polyurethane foam provide the thermal insulating properties as well as structural support. The panels are to be spaced apart from one another with a space between the cabinet and appliance liner so that the foam will lock the panels in place. Also the panels are to be spaced from the corners of the cabinet to permit the foam to flow into the corners. The panels can be applied directly to the cabinet or they can be spaced between the cabinet and liner, held by spacers. In either case, an adhesive is used to hold the liners in position prior to introduction of the foam.

Abstract: A refrigerator which includes cooling chamber including a refrigerating chamber and a freezing chamber, an axial flow fan for circulating air within the cooling chamber, a heat exchanger for cooling the air circulated by the axial flow fan, a suction side space so formed as to guide the air cooled by the heat exchanger from the heat-exchanger to the axial flow fan, and a sound absorbing material for absorbing noises produced in the suction side space and the cooling chamber so as not to leak outside the refrigerator, with the suction side space and the cooling chamber respectively having resonance dimensions for resonation at specific frequency regions. The suction side space is set, in its resonance dimension, to the frequency region at which the sound absorbing material can absorb the sound in an efficient manner.

Abstract: A self-contained thermal insulation panel, of generally flat rectangular form suitable for placement within the walls or doors of a refrigeration cabinet, consists of a hermetically sealed envelope surrounding an assembled framework defining a plurality of thin parallel internal cavities. The cavities are formed by a plurality of thin stretched-out sheets, each preferably with at least one reflective face, spaced-apart by thin interlocking peripheral gaskets between a top and a bottom frame member. A method of manufacturing an insulation panel according to this invention requries the initial assembly, on a first frame member, of an alternating array of thin sheets and gaskets, then a final sheet and a second frame member all brought firmly together and permanently affixed as a unified assembly. The assembled structure is then evacuated and refilled with a heavier-than-air gas of low thermal conductivity, e.g.

Abstract: A method and apparatus for loading a refrigerator box which has a door along one side and insulation in all of the surfaces of the box including the bottom. The invention specifically relates to devices for loading the box using a pallet loaded with prepackaged material such as ice. The insulation in the bottom of the box is divided into three parts; the insulation along one side, the insulation along the opposite side and then the center insulation portion.The method is accomplished by removing the center insulated portion and rolling a pallet loaded with prepackaged material into the refrigerated box using an ordinary transportation vehicle such as a lift cart. Once the vehicle has moved the pallet of prepackaged material into the refrigerated ice box or container, the transportation device is then lowered so that the pallet will settle onto the pieces of insulation on each side of the box. The transportation device is then removed and a piece of insulation is inserted under the pallet.

Abstract: A self-contained thermal insulation panel, of generally flat rectangular form suitable for placement within the walls or doors or a refrigeration cabinet, consists of a hermetically sealed envelope surrounding an assembled framework defining a plurality of thin parallel internal cavities. The cavities are formed by a plurality of thin stretched-out sheets, each preferably with at least one reflective face, spaced-apart by thin interlocking peripheral gaskets between a top and a bottom frame member. A method of manufacturing an insulation panel according to this invention requires the initial assembly, on a first frame member, of an alternating array of thin sheets and gaskets, then a final sheet and a second frame member all brought firmly together and permanently affixed as a unified assembly. The assembled structure is then evacuated and refilled with a heavier-than-air gas or low thermal conductivity, e.g.

Abstract: An energy-saving cover for evaporative coolers. An oversized top portion provides a sufficient overhang about all four sides of the cooler for shading purposes. An insulative side panel is associated with each of the sides of the cooler and the panels are positioned a predetermined distance away to allow sufficient air flow to improve the cooling efficiency of the cooler during the cooling season. During the heating season the side panels may be repositioned onto close flush against the sides of the cooler so as to seal the vent portions thereof and prevent the escape of warm air from the dwelling through the duct system. Additionally an interior duct cover can be used to seal the cooling vent to prevent the escape of warm air from the room having the cooling vent thereby saving energy and increasing heating efficiency in the heating season.

Abstract: A freezing container comprising an inner bowl for containing a product to be frozen, an outer bowl sealed and containing an expandable freezing agent and insulation around the outer bowl. The bottom wall of the outer bowl is relatively resilient so as to take up for expansion of the freezing agent and is spaced from the outer insulation layer.

Abstract: In accordance with the invention, an insulating box (32) is applied to the depending portion (28) of the center plate (24) of a railway freight car. This box is provided with external insulation (27) and a cooling medium such as air or water is passed through a conduit (56) into the box to maintain the temperature of the hardened portion of the bowl sufficiently low that no transformation or softening takes place during stress relief. After stress relieving the box is removed and the cooling medium turned off. The hardness and strength of the center plate has not decreased sufficiently to require rehardening, and it is not necessary to rotate the car into another position to attach the center plate, or to reharden the center plate.

Abstract: A shield to protect the exposed surface of the casing of an evaporative cooler from the heat loading effects of the environment is comprised of thermal insulation means coupled to the exposed surface of the cooler casing and a weather protective covering coupled to both the insulative means and the casing of the cooler so as to protect the thermal insulation means from the environment and maintain the invention in place, covering and protecting the selected surface of the cooling casing to be protected. In the embodiment disclosed, the surface selected for protection is the top surface of an evaporative cooler and the insulation material may be comprised of a polyfoam insulative board configured to conform to the top surface of the cooler. A protective covering is set down over the insulative board and affixed mechanically to the casing to prevent the cover from being inadvertently dislodged. The invention is especially adapted to be retrofit to existing evaporative cooler installations.

Abstract: This invention relates to a panel air chiller for use with a portable food storage unit. The panel air chiller includes in combination first and second spaced apart parallel panels that have thermal insulation disposed between and in contact with the panels. The thermal insulation material has formed therein at least a first and a second chamber between the panels thereby establishing passageways between the panels and through the thermal insulation material. Located in the first chamber is a means to extract heat from air passing thereover to thereby cool the air. At least one return air opening is provided through one of the panels to communicate with the portable storage unit. A fan is coupled to the space between the panels and to the first chamber to thereby draw air through the return air opening coupled to the portable storage unit.

Abstract: A transition sleeve for a double wall structure such as a refrigerator cabinet used to pass tubing or the like through juxtaposed apertures formed therein. The sleeve includes a unitary tubular body of relatively rigid material having a plurality of radially extending integral locking tabs at one end thereof for securing to one of the refrigerator walls through a complementary apertured opening. The tabs have camming faces formed thereon to facilitate rotation about the opening after being inserted therethrough. On a radially extending plane offset from the locking tabs are a plurality of equiangularly disposed stop pads which positively locate the rotational position of the sleeve on the wall. The longitudinal ends of the body include annular flanges which are flared outwardly to sealingly engage the walls perimetrically of the apertures on the cavity side thereof. The tubing is sealed to the core of the sleeve by the use of gum or the like.

Abstract: A unitary transition sleeve for a double-wall structure such as a refrigerator cabinet used to pass tubing or the like through juxtaposed apertures formed therein. The sleeve includes a tubular body of relatively rigid material having a plurality of radially extending integral flanges formed at each end therof for sealing engagement with each of said walls. The sleeve is adapted to be rotationally secured to one of said walls by means of a plurality of radially exending integral locking tabs projecting from one end thereof. Each of the tabs have a camming face formed thereon to facilitate rotation during assembly. The sleeve includes a plurality of equi-angularly disposed and radially extending detents which positively locate the rotational position of the sleeve in the wall to which it is secured.

Abstract: A novel combined application process of thermal insulation and built-up roofing or waterproofing is provided. In this application process, a foamed thermo-plastic thermal insulating material is bonded with a membrane having a tacky compound layer on one surface thereof so that the tacky compound layer is in close contact with the foamed thermoplastic material, without causing any damage due to heating, and a built-up roofing or waterproofing is formed on the other surface of the membrane according to the conventional application process.

Abstract: Cryogenic vessels having improved insulation value are prepared by incorporating evacuated tubing within the insulation.

Abstract: An apparatus and method for forming a water delivery system for an automatic ice-forming element of a refrigeration apparatus. The refrigeration apparatus is formed of inner and outer spaced-apart cases with a holding element positioned between the cases in contact with a water supply line for maintaining said line in heat exchange relationship with at least one wall of the outer case.

Abstract: A refrigeration apparatus enclosure structure wherein an inner laminate wall portion of the enclosure defines the inner sheet liner and insulation disposed within an outer cabinet portion of the enclosure and is secured to a portion of the cabinet wall with the sheet liner portion maintained spaced from the cabinet wall to provide thermal insulation therebetween. The laminate wall is secured to the cabinet by insulative support means extending through openings in the insulation to the sheet liner and means are provided for securing the sheet liner to the inner end of the insulative supports. The insulating supports may further support other elements within the enclosure inwardly of the sheet liner. In one form, the insulating support may be held in position in the laminate wall insulation by an outer plate having inturned tabs extending into the insulation and insulating support.

Abstract: A refrigeration apparatus enclosure and method of forming the same wherein an inner laminate wall is provided in an outer cabinet for providing the sheet liner and insulation portions of the refrigeration apparatus enclosure. The laminate wall is folded along lines cut through the insulation to conform to the configuration of the outer cabinet and insulation is provided for filling the resultant voids to complete the enclosure construction. The voids are filled by foamed-in-place plastic which may further serve to bond the laminate wall to the outer cabinet. The rear wall of the cabinet may comprise a flat laminate wall and a divider wall may be provided within the cabinet for dividing the space therein into separate compartments. The divider wall may comprise another laminate wall.

Abstract: A refrigerated chamber or building having an upper crawl space above the ceiling wherein the crawlspace is maintained under a negative pressure in order to provide an outflow of refrigerated air through the insulation into the crawlspace. This serves to prevent the inflow of warm air into the upper portions of the refrigeration chamber, which normally would have a negative pressure, with accompanying harmful moisture precipitation in the insulation.

Abstract: A refrigeration apparatus enclosure structure wherein an inner laminate wall portion of the enclosure defines the inner sheet liner and insulation disposed within an outer cabinet portion of the enclosure and is secured to a portion of the cabinet wall with the sheet liner portion maintained spaced from the cabinet wall to provide thermal insulation therebetween. The laminate wall is secured to the cabinet by insulative support means extending through openings in the insulation to the sheet liner and means are provided for securing the sheet liner to the inner end of the insulative supports. The insulating supports may further support other elements within the enclosure inwardly of the sheet liner.