Abstract: A through-wall heat pump air conditioner having a total heat exchanger between the interior and exterior unit rooms is disclosed for recovering waste heat from the exhaust air. The conditioner includes two auxiliary dampers respectively provided between the exhaust air path and the heat exchanger and between the intake air path and the heat exchanger, whereby penetration of external air into the room is prevented during the halt state of the air conditioner.

Abstract: A plastic sleeve assembly and an air conditioning unit are disclosed for mounting the air conditioning unit in a through-the-wall application. The sleeve assembly includes flange members with transverse ribs therebetween. The flanges have screw holes therethrough with a J-nut about the inner screw hole, and standoffs about the outer screw holes, such that the air conditioning unit, having an L-shaped sealing flange thereon, when inserted into the sleeve and fastened thereto, causes the standoff on the flange to be in compression and not tension as a fastener secures the air conditioner in the sleeve.

Abstract: A plastic sleeve assembly and an air conditioning unit are disclosed for mounting the air conditioning unit in a through-the-wall application. The sleeve assembly includes flange members with screw holes therethrough and standoffs about the screw holes, such that the air conditioning unit, having an L-shaped sealing flange thereon, when inserted into the sleeve and fastened thereto, causes the standoff on the flange to be in compression and not tension as the standoff makes contact with the L-shaped sealing flange when a fastener secures the air conditioner in the sleeve.

Abstract: A vent assembly for use in an air conditioning unit is disclosed. The vent assembly extends from the condenser fan shroud to the partition for directing air at a relatively higher condenser fan pressure through the vent assembly to the indoor section wherein the evaporator fan circulates the air to the indoor section to be conditioned. The vent assembly is an integral self-contained portion capable of being easily inserted within an existing unit for effecting desired airflow control.

Abstract: The transport refrigeration unit (FIG. 5) includes a generally planar main frame 20, 22, 24 which supports a base frame 34 for carrying the compressor 54 and engine 56, and with an evaporator plenum 58 and a condenser plenum 60 in side-by-side, but spaced apart relation to provide a channel 62 therebetween. A heavy intermediate upper support member including wall 44 supports a bearing and support housing 68 which carries the shaft upon which is mounted, in cantilevered relation, both the evaporator blower 72 and the condenser blower 74. The plate fins 66 of the condenser are in planes parallel to the plane of the main frame with the air for the condenser entering the condenser plenum 60 from the side, rather than the front. With the arrangement as shown, all of the shafts carrying pulleys for the drive train to the blowers are parallel with each other.

Abstract: A heating and cooling system for domestic and commercial use which includes a reversible refrigeration system in the form of a heat pump combined with an exteriorly mounted heat exchanger in the form of a solar collector and an interiorly mounted heat exchanger incorporated into a valance supported peripherally adjacent to but spaced downwardly from the ceiling of a space being conditioned. The refrigeration system includes a compressor and the heat exchange system includes a circulation water pump which together with the compressor constitute the major moving parts of the system with heat exchange and air circulation being obtained by convective airflow. The heating and cooling system is interconnected with the domestic hot water system to satisfy a large porportion of the required domestic hot water by utilizing rejected heat.

Abstract: A heat exchange apparatus is mountable in an exterior building wall structure having an exterior wall panel and interior wall panel. The apparatus includes a frame, a pivotal panel member and a cover door. The frame is attached to the wall structure proximate an opening in the exterior wall panel. The cover is detachably attached to the frame and the panel member pivots from a closed to an open position. The panel member is hingedly attached to the frame. A heat exchange system, such as an air conditioning or a heat pump system, or both, is mounted on the panel member so that when the cover door is removed, the panel member may be swung open, providing easy access to the heat exchange system for maintenance. The panel member, when in the closed position, divides the interior of the housing into interior and exterior air flow sections.

Abstract: A vertical mullion includes an outer structural member and a vertical mullion body coupled together by bolts to embrace a heat insulating member. The vertical mullion body, which has a substantially rectangular cross section, is provided with a heat transfer medium flow passage extending depthwise through the interior thereof. The vertical mullion body has a lower end portion extending below from a connecting portion to a fastener which is mounted to a floor slab, and the lower end portion is connected to a feed pipe and/or a drain pipe.

Abstract: In a transport refrigeration unit, top and front shutters are controlled to open in sequence upon rising temperatures being sensed by temperature responsive control means located in a recirculation passage between the shutters.

Abstract: A combination compressor support and drain pan for use in a heat exchange unit is disclosed. A compressor support is mounted to a vertically extending partition and spaced a selected distance from the bottom of the unit such that a compressor may be mounted thereon. A drain bracket is secured between the partition and the compressor support to provide both structural integrity for the support and to divert condensate collected by the support to a separate drain pan.

Abstract: A system for conditioning the air of a selected area, e.g. a room, of a house or other building structure, including individual refrigeration units for respectively heating and cooling the room. The respective units are sized according to the heating and cooling loads of the room, and when heating add blower motor and compressor heat and when cooling exclude such extraneous heat.

Abstract: A combination fan motor and orifice support assembly including a plurality of fan motor support legs and a plurality of fan orifice supports all integrated to support both the fan motor and the fan orifice are disclosed. Additionally, tube supports for securing the loops of a wound fin heat exchanger in appropriate position are disclosed for providing further structural support to the fan orifice and therethrough to the entire support assembly.

Abstract: In a hot water system, a receptor heat exchanger unit mounted in a wall with a flat surface exposed in a room. A refrigerator positioned in that room has a plate with a condenser coil thereon. The plate is exposed, and it extends outwardly beyond the wall of the refrigerator body and at the wall, and the plate is positioned in heat transfer engagement with the exposed surface on the receptor heat exchanger unit.

Abstract: Apparatus for use in a heat exchange unit having wound fin tubing including a tube support assembly having a tube support and a rod for securing runs of wound fin tubing therebetween. The rod is mounted to the tube support in rod slots providing a snap fit arrangement. The entire tube support assembly is designed for use for mounting a peripherally encasing heat exchanger that is tapered to a vertical partition.

Abstract: A bulkhead for a cargo carrying vehicle and method of constructing same is the subject of the present invention. First and second uniform extruded sections are provided, each of which presents alternating web portions and open areas sandwiched between generally planar surfaces. Plate connecting means is interposed between the two extruded sections and presents first and second connecting surfaces which are aligned with the first and second planar surfaces. First and second channel means disposed across the ends of the extruded sections place each of the open areas in closed communication with an adjacent area. The open areas may be utilized to house a refrigerant conduit and a freezable media so as to convert the bulkhead into a self-contained cold plate. Alternatively, a heating element may be placed in the open areas so as to convert the bulkhead to a hot plate. The aforedescribed assembly is disposed on one side of an A-frame which divides the cargo area into left and right sections.

Abstract: An air conditioning device for cooling and/or warming a room by introducing thereinto air in the room and heat exchanging the same. The device comprises an outer housing having a top covering wall 1a to face the ceiling, a rear covering wall 1b to face the rear wall surface, and side covering walls 2 to skirt left and right sides of the device. Partition member 3 divides said outer housing interior into an air intake chamber 4 and an air blowing chamber 5, said partition member having mechanical strength, and constituting a skeleton together with said outer walls, 1a, 1b, and 2, 2. A side covering panel 21 is fitted on said side covering walls to cover either or both said side covering walls 2. An air blowing means is provided in said air intake chamber 4 for sending air into said air blowing chamber 5. An air filter 7 is provided in said air intake chamber to remove dust in the air to be taken in by said air blowing means.

Abstract: A floor mounted air conditioner comprising a housing containing condenser coils disposed in a conical configuration about a normally vertical axis, and cylindrically configured evaporator coils coaxially disposed above the condenser coils. A drip pan separates the condenser and evaporator coils and includes openings for discharging condensate onto the condenser coils for evaporation. A condenser fan associated with a bottom duct adapted for installation in a mounting opening in the floor of a room blows hot air through the mounting opening, and an evaporator fan is associated with a top duct for blowing cool air into the room being cooled. Another fan is provided for blowing cool air over the compressor.

Abstract: A container refrigeration unit is provided with a forwardly open condenser pocket 40 in which is located a condenser coil 50 near the upper portion of the pocket and in a generally centered location, the coil being mounted in an inverted disposition and provided with a bottom plate 52 and a front plate 54 with a fan ring opening 56 so that air is drawn into the condenser coil from the top and sides, the remaining U-shaped space in the pocket to the sides and bottom of the condenser being available to accommodate the electric motor compressor 60, the control box 62, an operations recorder 64, and if required a power transformer 66.

Abstract: For a container refrigeration unit of the type having an inverted U-shaped coil 50, a coil and fan mounting arrangement is provided in which a plate 68 is secured at its opposite ends to the ends of the legs of the coil, and a fan motor 54 mounting bracket 78 has its opposite ends secured to the plate 68 and carries the motor 54 with the fan 56, all of the components forming a unitary assembly adapted to be secured through the fasteners 94 to the back wall 49 of the condenser section pocket of the refrigeration unit. The plate 68 also functions to block the flow of air from below into the central passage 52.

Abstract: A container refrigeration unit provided with an upper evaporator section 24 has centrifugal fans 48 supported on an open work frame 54 and adapted to be in one position or rotated 90.degree. therefrom to another position, for obtaining either a top discharge operation with draw-through of air through the evaporator 50 or, alternatively, a bottom discharge operation with blow through of air through the evaporator. Air flow blocking plate means is in the form of plate 98 or rear access panel.

Abstract: A transport refrigeration unit for mounting on the front face of a trailer 1 or the like is provided with an exterior section 2 construction and arrangement in which a relatively low center of gravity is obtained by providing a frame means 25 in the lower portion of the exterior section mounting an internal combustion engine 26 at a relatively low level with a refrigerant compressor 27 at a somewhat higher level, and an electric motor 28 below the compressor when such a motor constitutes a part of the power pack, these elements being arranged so that the driving belts and pulleys in the lower part of the section are in the center portion of the section to promote their accessibility, and a significant open area is provided above the power pack to promote access to those parts in the upper portion of the exterior section behind the condenser 9.

Abstract: A method and arrangement for circulating condenser cooling air through the condenser section of an air conditioner used in dusty and windy environments. The condenser section includes an air cooled fin-tube type condenser secured across a straight duct extending vertically through the horizontal housing of the air conditioner. During operation of the air conditioner, an axial flow fan mounted within the duct draws ambient air into the duct through an opening in the bottom of the housing in a direction generally perpendicular to the natural wind flow in the vicinity of the air conditioner and directs the air through the condenser whereafter it is discharged to atmosphere.

Abstract: An air conditioner comprises a suction grille for sucking air in the room, a heat exchanger placed near and in the rear of said suction grille, an inner casing which is provided with at least two suction inlets, the second inlet being vertically positioned above the first and faces said heat exchanger such that the distance from said heat exchanger to said second suction inlet which is in the lower position is greater than that from said heat exchanger to said first suction inlet which is in the upper position. First and second multiblade type blowers are placed so as to be respectively facing said first and second suction inlets and first and second air passages are provided for feeding air from said first and second blowers into the outlet of said chamber, said second air passage being provided in the rear of the casing of said first blower.

Abstract: A transport refrigeration machine for conditioning the interior of a trailer comprising a frame, a refrigerant compressor, a condenser assembly, and an evaporator assembly. The evaporator assembly includes a housing, a heat exchanger extending within the housing for conducting the refrigerant fluid therethrough, and heat exchanger support apparatus connecting the heat exchanger to the frame to support the heat exchanger independently of the housing. The evaporator assembly further comprises a blower unit extending within the housing to circulate air therethrough, and blower unit support apparatus connecting the blower unit to the frame to support the blower unit independently of the housing.

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 modular, dual-purpose architectural assembly which can provide support for basic structural elements used in constructing semi-permanent, enclosed or partially enclosed partitions defining parochial work spaces within a room and which can also supply discretely controlled heating, ventilation and air conditioning (HVAC) service, on a parochial basis, to said work space in response to local needs and varying conditions. The assembly consists of an upright, rigid, portable, elongated column which can be releasably mounted to the floor or ceiling of a room and attached to a subsurface (i.e., below the floor or above the ceiling in the room) HVAC supply system, said column having an interior channel extending longitudinally therethrough for carrying fluid from an inlet port at the base end of said channel, which inlet port is releasably connected to said HVAC supply system.

Abstract: A transport refrigeration machine for conditioning the interior of a trailer comprising a refrigerant compressor, a condenser assembly including a condenser fan, and an evaporator assembly including an evaporator fan. The machine further comprises a fan shaft for driving the condenser and evaporator fans, an engine for driving the compressor and the fan shaft, and a frame supporting the refrigeration machine. The frame includes a box sub-frame, a condenser assembly support sub-frame, an evaporator assembly support sub-frame, and a shaft support sub-frame rotatably supporting the fan shaft.

Abstract: Heat exchange is effected in a simple and economical manner by allowing natural flow, i.e., without mechanical compressors, pumps, etc., of a heat exchange fluid such as a conventional refrigerant liquid between two heat exchangers which are exposed to air at different temperatures. The two heat exchangers, which may conveniently take the form of fin-tube heat exchangers, for example, are arranged with one end at a higher elevation than the other, the upper ends of the two exchangers being connected in direct communication and the lower ends being likewise connected.

Abstract: An air conditioning unit mounting curb adapted for flat roof-top mounting with provisions for ducts for passage of air to and from an air conditioning unit from and to a plurality of rooms immediately subadjacent and spaced below the roof top. The mounting curb is comprised of a rectangular outer perimeter, a closed bottom, a wall dividing the curb into two plenums, and at least one opening in one of the plenums for supply of air to the rooms and at least one opening in the second plenum for return air from said rooms. The improvement in the mounting curb comprises a bypass means between the plenums, which is responsive to pressure differential acting thereon, providing a variable air volume system. The bypass means consists of an opening in the dividing wall, a damper blade covering the opening and hingeably connected to the return air side of the dividing wall, a lever attached at one end to the damper blade and at the opposite end thereof to an axle rod, which extends through the curb.

Abstract: Apparatus and method for preconditioning makeup air supplied to an air conditioning unit. An add-on preconditioning unit having a separate vapor compression refrigeration circuit is disclosed for heating or cooling makeup air supplied to an air conditioning system.

Abstract: A housing for the low side evaporator coil of a refrigeration unit which housing is separately mounted on an exterior wall of a refrigerator compartment and which employs an energy saving air defrost system that, during a defrost cycle, draws ambient air into the housing from one end and discharges it from the other end after it flows past the frosted coil. The housing comprises a preformed unitary body section having opposite ends, a generally centrally located center chamber, a pair of generally cylindrically shaped valve chambers and associated dampers having conforming cylindrical wall sections generally located in the center of each end, and a pair of air passages extending at one end into each valve chamber and at the other end to the exterior. Easy access for servicing or the like is obtained, through a hinged door, to the refrigeration components which are slidably mounted within the center chamber of the body section.

Abstract: A floor mounted air conditioner comprising a housing containing cylindrical condenser coils disposed about a normally vertical axis and cylindrical evaporator coils coaxially disposed above the condenser coils. A drip pan separates the condenser and evaporator coils and includes openings for discharging condensate onto the condenser coils for evaporation. A condenser fan is associated with a bottom duct adapted for installation in a mounting opening in the floor of a room, for blowing hot air through the mounting opening, and an evaporator fan is associated with a top duct for blowing cool air into the room being cooled.

Abstract: A component and structural arrangement of a transport refrigeration unit for the front wall of a trailer and which utilizes a generally planar frame attached to the front wall to provide a support arrangement in which the load of the components is transferred back to the planar frame, and which includes an airflow plenum through which trailer air is passed for conditioning which is disposed relative to the plane of the frame with a material part of the front-to-rear depth of the plenum being forwardly of the plane to significantly reduce the projection of the plenum into the trailer cargo space.

Abstract: Apparatus and a method for securing capillary tubes and other small diameter components within a refrigeration machine. A capillary plug button having a retainer plate in which various small diameter components may be secured has extending therefrom a pair of fastening legs. The fastening legs are inserted through an opening within an internal wall of the refrigeration machine such that projections on the legs contact one side of the wall and the retainer plate contacts the opposite side of the wall thereby securing the plug button within the opening and securing the small diameter components within the retainer plate. The retainer plate has a slot connecting the edge of the plate to a plurality of apertures thereby allowing the plug button to be spread apart such that the components may be inserted into the apertures of the retainer plate.

Abstract: An air conditioning unit for heating or cooling the cab of a tractor or other vehicle. A rectangular housing is mounted to the roof of the cab. It includes front, back and side walls which are upright and spanned by a horizontal cover. A central transverse shaft is rotatably mounted within the housing and extends between the housing side walls. It rotatably carries blade assemblies for central blowers and side blowers. The housing is divided into front and rear compartments by a solid interior transverse partition which isolates the two sets of blowers. A compressor is mounted within the housing and also has a transverse shaft. A common hydraulic motor drives both the central transverse shaft and the drive shaft of the compressor. The front compartment includes an inside coil and air inlets for directing fresh air and return air through the inside coil. The rear compartment includes an outside coil. The two coils are interconnected with a compressor in the manner conventional to a heat pump system.

Abstract: The air conditioning unit of the invention has a construction of the indoor air flow section which adapts it to receive and return indoor air either through its bottom area in a vertical air flow mode, or through its end wall in a horizontal air flow mode so that the unit may be either roof top mounted or slab mounted without the need of any added section or module furnished by the manufacturer. The indoor air flow section includes a draw-through refrigerant coil located in an upper quadrant of the section, a detachable panel separating two lower quadrants in the section for the vertical air flow mode and movable to separate a lower and upper quadrant for the horizontal air flow mode, and removable end wall panel means covering the end in the vertical air flow mode and being positioned to cover the bottom for the horizontal air flow mode.

Abstract: A refrigerating unit for a truck or freight container is mounted exteriorly of the wall of the vehicle body or container to be cooled with communication through the wall to the interior, has a flat and wide construction relative to the body or container, and includes a cross-current blower extending substantially the full width of the refrigerating unit and discharging cold air under the top of the interior to return at a lower level to the refrigerating unit.

Abstract: An air-conditioning unit is positionable through a partition such as a wall. The unit has a housing passing through the wall and a plate covering the inner end of the housing. The evaporator coil is mounted on the plate. A further plate extends from the plate horizontally into the housing and the compressor and condenser are mounted on the further plate. An aperture leads through the first mentioned plate for the passage of air and leads to an elongated duct to provide sound attenuation. Sealing gaskets are provided between the housing and the first mentioned plate and sound deadening material is positioned to deaden sound on the housing and the first mentioned plate.

Abstract: A plenum cover for a vehicle air conditioner of the roof-mounted type. The cover is essentially rectangular in shape having an opening at the top with elongated side walls and a base wall spaced below the top opening and being joined to the elongated side walls by opposed end walls. The base of the cover has a continuous elongated groove located substantially parallel with and spaced between the side walls. The groove in the base extends upwardly toward the top opening in the cover. The groove in the base is adapted to straddle the partition in an armored truck or taxi cab which separates the driver compartment from the cargo or passenger compartment. A plurality of diffusers located in either the base or side walls but on oppposite sides of the grooved portion of the base for diffusing cool air into the compartments located on opposite sides of the vehicle partition.

Abstract: An air ventilating unit provided with a rotary heat exchanger assembly communicating between an incoming air passage and an outgoing air passage for heat recovery in air conditioning. The ventilating unit is adopted to enable direct deposition on the upper wall of an air conditioner. When the ventilating unit is mounted on the air conditioning unit, the outside air (fresh air) outlet formed in the front wall of the ventilating unit is positioned closely adjacent to the air outlet of the air conditioning unit. Room air inlets are formed on both side walls of the ventilating unit.

Abstract: A cabinet construction for a ceiling-mounted fan-coil unit of an air conditioning system, the cabinet construction comprising a first cabinet section attachable to the fan-coil unit for housing a first portion of the unit, and a second cabinet section attachable to the first cabinet section for housing a second portion of the fan-coil unit, the two cabinet sections being attached by means of a latch assembly which assures the safe and proper installation of the two cabinet sections on the fan-coil unit.

Abstract: An air conditioner for being mounted to the wall of an enclosure box is disclosed, the air conditioner having a cabinet, a refrigeration chassis mounted in the cabinet and having a L-shaped frame attached to and dividing the cabinet into first and second chambers with a compressor and condenser in the first chamber and an evaporator in the second chamber, the cabinet has a condenser fan ducted into a screen covered exhaust plenum at the top of the cabinet and the second chamber has a fan for blowing cold air from the evaporator coil into the enclosure, an inlet plenum in the back of the cabinet is provided for drawing hot air from the enclosure and there is a filter holder on the cabinet for holding a filter of twice the area of a condenser air inlet with a filter being turnable end for end in the holder for being used twice.

Abstract: A forced air range is part of a domestic appliance system which includes hot and cold thermal reservoirs. A thermal exchange fluid can circulate between a heat exchanger in one of the thermal reservoirs and a heat exchanger within a duct in the forced air range. For operation, an ordinary houseware such as a pot, is placed on the range and temperature and heating rates are programmed. A blower circulates air through the heat exchanger and under the houseware. Thermal exchange fluid flows through the heat exchanger to maintain the circulating air at the programmed temperature.

Abstract: A refrigerated box mounted through an outside wall of a house and which is used by a home delivery route milkman to deposit bottles of milk therein; the box having a door on its outer side for access to the milkman and a door on its inner side for allowing a resident inside the home to remove the milk; a lock automatically locking the outer door when closed, and a hidden lock release being made known only to the milkman so to prevent other strangers from access to the box interior.

Abstract: A refrigeration or air conditioning system or unit is provided that includes revolving or oscillating heat exchangers, wherein the heat exchanger on the refrigeration side acts as an evaporator, while the other acts as a condenser on the outside.On a predetermined schedule the heat exchangers are rotated or oscillated 180.degree. so as to bring or move the frost laden evaporator outside and a clean condenser inside. Suitable controls are provided for selectively reversing the cycle at the proper time or interval.

Abstract: The self contained, combined cooling and heating, air conditioning unit comprises a vertically elongated, generally rectangular cabinet adapted to be disposed in a vertically elongated, generally rectangular, relatively narrow opening formed in the exterior wall of an apartment building, small office building, townhouse or similar building wherein it is desired to have independent temperature control for the rooms and wherein the exterior building wall is, to a relatively large extent, glass or windows. A vertically disposed wall divides the interior of the cabinet into an inside compartment and an outside compartment which is in communication with the exterior of the building by means of an outside fresh air grille that extends substantially the entire vertical length of the outside facing end wall of the cabinet.

Abstract: An air conditioning unit in which a housing is provided having side walls adapted to extend within an opening formed in an exterior wall of a room to be cooled. Air inlet and outlet means are associated with the front wall and rear walls of the housing to circulate room air and ambient air through the unit. A condenser heat exchanger and an evaporator heat exchanger are disposed in the housing in proximity to its rear wall and front wall, respectively, and extend at an angle relative to the latter walls. Ambient air is circulated into the inlet associated with the rear wall, across the condenser heat exchanger and out the outlet associated with the rear wall, and room air is circulated through the inlet associated with the front wall, across the evaporator heat exchanger and out the outlet associated with the front wall.

Abstract: The water heater includes an open-ended, box-like case fabricated from sheet metal panels and adapted to be pulled through an opening in a vehicle wall after the wall has been erected. Thereafter, the margins of the panels may be bent outwardly by hand to form right angle mounting flanges adapted to lie in face-to-face relation with the wall.

Abstract: The conditioning of building structures and the like by "exterior surface cooling" which takes advantage of heat flow from hot to cold areas for minimizing the energy required to condition the building interior. The exterior surface of the building is subjected to the flow of air which eliminates penetrating heat at the surface of the building structure, particular advantage being derived from the useful employment of otherwise waste evaporative air discharge from dry-air evaporative cooling, utilized with this invention both for sensible conditioning of the building interior and for surface cooling of the building exterior.BACKGROUNDIn the construction of buildings and the like such as trailers and motor homes and commercial structures as well, air conditioning is ordinarily excessively energy consuming commensurate with the inability of such structures to reject heat.