Abstract: Apparatus for controlling the return air flow to the evaporator coil of an air conditioning unit that is mounted on the roof of a vehicle wherein the return air flow enters the unit vertically and must be turned 90.degree. in a limited amount of space before being delivered to the coil. A plenum is mounted over the return air duct that has a back wall containing an arcuate segment that curves inwardly over the entrance toward the entrance face of the coil. A stabilizer is mounted along the inner edge of the entrance in front of the coil which coacts with the contoured rear wall of the plenum to evenly distribute the return flow across the coil and prevent unwanted turbulence in the flow that would inhibit flow through the coil.

Abstract: A flexible plastic drain sock that is attachable to an exterior of an evaporative cooler and held beneath a discharge port formed in a water pan of the cooler. The drain sock is flexible and is made to have a length sufficient to extend from the cooler to the edge of a roof upon which the cooler is mounted. In this manner, water can be drained from the discharge port into the drain sock and conveyed across the roof and over the edge of the roof without contacting the roof, and thus without depositing corrosive salts and other hard-water debris onto the roof. The drain sock preferably includes a wide entrance that is removably coupled to opposing sides of the cooler.

Abstract: A storage system with ambience conditioning facilities includes a desiccator for removing moisture from air and promoting convection, thereby maintaining articles stored therein in an optimum state for a long period of time. The environment maintained has stable humidity, is free of contaminants and suppresses aging of articles by humidity and microbes.

Abstract: A ceiling or overhead air conditioner unit is configured to fit into a standard space, e.g., two-foot by four-foot, in a dropped ceiling. The unit can be a self-contained air conditioning unit with HEPA filter, or an air conditioner attachment adapted to fit onto a blower and filter assembly. The positions of the condenser air intake and outlet can be field-selected at either the end, the top, or the side, e.g., using a movable plate. The evaporator return inlet can similarly be field-selected at the top, side, or end. The return bypass inlet can be field-selected at the side or top. The room air intake can be connected by a duct either to outside air or to an intake air grille in the ceiling. The air conditioning attachment unit that fits an existing or available ceiling mounted filter and blower assembly has its condenser section on one side of the unit, and its evaporator section at the other side, guiding conditioned air into a centrally situated cool air plenum.

Abstract: A detecting device for a vehicle includes an inside air temperature sensor for an air conditioning system. The air conditioning system includes an air duct having a horizontal duct, and the horizontal duct is disposed in a receiving passage of a ceiling of the vehicle. The horizontal duct includes a connection duct portion having a U-shaped bottom wall portion. The inside air temperature sensor is disposed in the U-shaped bottom wall portion at a position proximate to an opening portion of an inner wall of a passenger compartment of the vehicle, and a suction cover is attached to the opening portion of the inner wall of the passenger compartment. Thus, the inside air temperature sensor accurately detects a temperature of inside air in the passenger compartment without being affected by an amount of sunlight entering the passenger compartment or the other conditions.

Abstract: A curb for a rooftop air conditioning unit. The curb comprises: a frame having side walls and end walls arranged in a generally rectangular shape, and a generally planar portion overlaying a portion of the frame. The planar portion includes a first layer providing structural support, a second layer providing a sound barrier, and a third layer provides a heat energy barrier.

Abstract: In an air conditioner for conditioning the air present within a cabin, a cooler unit and a condenser for liquefying a gaseous refrigerant by forced cooling are arranged integrally on the upper surface of the cabin ceiling. The outer periphery of the cooler unit and that of the condenser are covered with a cover. Further, for the discharge of drain from the cooler unit, drain pipes are disposed on both front and rear sides of the cabin. The space in the narrow cabin can be fully utilized effectively.

Abstract: A drain pan for collecting and draining condensate from a packaged vehicle roof mounted air conditioning unit. The drain pan has an opening registering with the roof opening for air distribution and control components within the vehicle, a bottom surface gasket for this opening, and an upper surface to seal against a gasket for the air conditioning unit.

Abstract: An object of the present invention is to make a housing for a ceiling-mounted type air conditioner small-sized without decreasing the performance and capacity of the air conditioner, and particularly to decrease the length of the housing in the depth direction, thereby facilitating the installation of the air conditioner and improving the room appearance. To achieve the above object, a heat exchanger is bent into a doglegged shape, the bent portion thereof is convex to the air inlet side, and the heat exchanger is inclined so as to be raised on the air inlet side. A cross flow fan rotating around a horizontal axis is disposed on the downstream side of the heat exchanger.

Abstract: An air conditioner unit suitable for mounting on the roof of a bus. The unit has a unitary molded base and unitary molded cover. The base has a longitudinal centrally located opening therein which serves as the return air inlet. A pair of evaporator coils are mounted outboard from the opening. Outboard from each of the evaporator coils are evaporator fans. Outboard from the evaporator fans are condenser fans, and, outboard from the condenser fans are a pair of condenser coils. the air flow passages for both the evaporators and condensers are located between each of the pairs of condenser coils and evaporator fans.

Abstract: An air scoop and method of use for increasing the cooling effectiveness of roof mounted air conditioners. The air scoop has a substantially rectangular shaped air inlet aperture in connection with a rectangular cross-sectional shaped conduit having a substantially ninety degree bend therein that is in connection with a substantially rectangular shaped air discharge outlet aperture; an air directing lip member extending away from a first geometric plane defined by the discharge outlet aperture at an angle of between ten and eighty (10.degree., 80.degree.) degrees; and a pair of mounting brackets, extending away from a seconded geometric plane defined by the air inlet aperture at an angle of about ninety (90.degree.) degrees, each mounting bracket including a fastening aperture adjacent a distal end thereof.

Abstract: The present invention involves split system air conditioners. Specifically, the present invention provides a condenser unit with cross-flow blowers. A single cross-flow blower may be used to draw air through a heat exchanger and expel the air adjacent to a cut-off portion. Further, dual cross-flow blowers may be provided to enhance the performance of the condenser unit. The combination of air streams from two cross-flow blowers provide better air circulation through the heat exchangers and a more uniform exhaust stream. The condenser unit is more compact and can be mounted on the wall, on the overhang, or on the top of the building. These various mounting locations take advantage of the air boundary layer near the building and thus the air conditioning system operates more efficiently.

Abstract: An air-conditioning ceiling fan including a body portion provided with an electric motor and a plurality of blades, an evaporator mounted on the body portion, a hollow supporter adapted to be fixedly mounted on a ceiling and having a tubular lower end depending downwardly through the evaporator, a water tray arranged under the evaporator, a condensing case including a compressor, a condenser and an exhaust fan, the compressor being connected between the condenser and the evaporator via refrigerant pipes, the condenser being connected with the evaporator via refrigerant pipes, and a connecting pipe connecting the hollow supporter and the condensing case.

Abstract: A noise reduction curb for use as an interface with a rooftop air conditioning unit by forming a base upon which the air conditioning unit rests and is mounted on a roof of a building. A noise reduction supply air duct is oriented in the longitudinal dimension of the air conditioning unit and has a supply air inlet fluidly coupled to the supply air source and a supply air outlet fluidly coupled directly to the supply ducts in the building. The supply air inlet is longitudinally displaced from the supply air outlet and is separated therefrom by a flow turbulence reducing substantially straight duct section. A noise reduction return air duct is oriented in the lateral dimension of the air conditioning unit and has a return air inlet fluidly coupled directly to the return air ducts in the building and a return air outlet fluidly coupled to the air conditioning unit. The return air inlet is laterally displaced from the return air outlet.

Abstract: A cooling system which can be fastened on a ceiling with a suspension provided beneath the ceiling disposed above a space to be cooled and with cooling pipes between the ceiling and the suspension wherein the space to be cooled and the space between the ceiling and the suspension are connected with each other through air current paths.

Abstract: An air conditioning system employing an air conditioning unit the conditioned air of which is obtained from an associated evaporative cooler under the influence only of the refrigeration unit's fan or blower.

Abstract: A refrigerated container for receiving, storing, and transporting materials without necessity of personnel contacting the materials after deposit in the container. The container is particularly adapted for use with medical wastes which may contain infectious materials. The container comprises a lower portion and a lid portion. The container lower portion includes an open-topped inner box for holding waste materials, and an open-topped insulated outer box surrounding and spaced apart from the inner box forming an annular space therebetween. The lid is releasably attached to the outer box and has doors for access into the inner box of the container. A refrigeration unit and air circulation fan are attached to the lid, and are in communication with the annular space for cooling the inner box by circularing refrigerated air through the annular space.

Abstract: An air conditioning system for motor vehicles having a flat roof construction for installation of the air conditioning system on the roof, is presented. The air conditioner comprising a condenser unit accommodated in a housing part and an evaporator unit accommodated in another housing part, wherein one of these two units in the direction of travel is mounted substantially in line behind the other of the two units. The evaporator unit has an inside housing part in which a circulating air opening from the passenger compartment opens out, through which the air from the passenger compartment via evaporator registers and/or heating registers which extend substantially parallel to the direction of travel, as well as via a blower arrangement can be fed back into the passenger compartment. The evaporator unit lies in the direction of travel in front of the condenser unit and in the front face of its housing part has a fresh air inlet opening that can be closed off.

Abstract: A reach-in cooler with interchangeable refrigerator and freezer systems is disclosed. The reach-in cooler comprises an insulated cabinet member with walls including at least one door opening and a floor completing the cabinet body, but with an open roof area; an insulated roof member configured to close the open roof area of the cabinet; a refrigeration system comprising a condenser and a compressor mounted on the top of the roof member, an evaporator mounted on the bottom of the roof member and refrigeration lines connecting the evaporator to the condenser and the compressor running through the insulated roof member; and sealing means for providing an air tight seal between the cabinet member and the roof member when the roof member is placed to close off the open roof area of the cabinet.

Abstract: A roof-mounted air conditioning system has a built-in compressor compartment between the condensor and evaporator sections, the fans in the condensor section inducing the flow of air through the compressor compartment and into the condensor section through louvered vents in the partition wall between the compressor and condensor sections, and the air flowing from the compressor compartment is confined to flow directly across the condensor coils so as to satisfy the normal cooling requirements in the condensor section.

Abstract: A roofing system for a structure having a roof deck with upstanding edges about the perimeter of the roof deck, includes a waterproof membrane on the roof deck and extending from edge-to-edge. A reservoir is defined by the waterproof membrane and edges and may contain a liquid therein, but some embodiments may operate without the reservoir. At least one insulating panel is provided above the liquid reservoir and covers the waterproof membrane on the roof deck from edge-to-edge. A pump has an inlet within the reservoir and an outlet communicating with the surrounding environment for selectively spraying liquid from the reservoir or other source onto the external surface of the panel to cool the liquid in the reservoir. Drains in the panel provide communications between the external surface of the panel and the reservoir for permitting drainage of liquid on the external surface into the reservoir.

Abstract: A system suitable for air conditioning rooms comprising a heating/cooling unit, distribution pipes and discharge units is, in the interest of increasing flexibility of installation and operation, constructed in modular fashion, and has a shape that permits installation on top of a suspended ceiling. In addition, the flow of air through each separate discharge unit can be individually adjusted.

Abstract: For protection of the condenser unit of a split system residential air conditioner of the top-discharge type, a ventilating cover has an impervious top panel and substantially impervious skirt, while the lower edge of the skirt may substantially coincide extending downward therefrom with the downward extent of the motor and fan inside the condenser unit, since the lower part of the unit remains uncovered and corrosion-avoiding ventilation is provided.

Abstract: An air conditioning apparatus is provided with an air conditioner embedded in a ceiling of a room provided with an air inlet port opening to the room, a heat exchanger and a blower. A duct box is connected to the air conditioner through a blow-off casing provided on the duct box to project air into the room via an air outlet opening to the room. A fan is disposed on a lower portion of the blow-off casing. A diffuser is provided for redirecting conditioning air from a vertical direction to a substantially horizontal direction. The fan is rotatable forward and backward and includes an outer rotor motor and a plurality of blades fixedly attached to an outer peripheral surface of an outer rotor of the motor.

Abstract: The apparatus for creating a reduced temperature air surround about a refrigeration type air conditioner. The reduced temperature air surround is interposed between the air conditioner and the environment, ambient temperature air surround. The apparatus for creating the reduced temperature air surround is a water cooling system having mist-spray heads for ejecting a fine particulate water mist into the air surrounding the air conditioner. A valve actuates the mist-spray heads only at those times at which the air conditioner fan is actuated to draw air from the immediate vicinity of the air conditioner and pass that air over the condenser coils of the air conditioner.

Abstract: An air conditioning apparatus comprises an air conditioner provided with an air inlet port opening to a room, a heat exchanger and a blower, a duct box connected to the air conditioner directly or through a duct, a blow-off casing provided on the duct box to project into the room and having an air outlet opening to the room, and a fan disposed on a lower portion of the blow-off casing, wherein a conical partition wall is provided between the air outlet and the fan to diffuse conditioning air in the radial direction while turning into the horizontal direction, a plurality of ring-like louvers are provided in the air outlet into the form of multiple stages, the fan is rotatable forward and backward and includes an outer rotor motor and a plurality of blades fixedly attached to an outer peripheral surface of an outer rotor of the motor, the air outlet and fan are disposed within a recess provided on the ceiling or wall surface, an oscillating mechanism is provided to oscillate the fan or both of the fan and air

Abstract: An air conditioner unit mounted on or within the roof of a vehicle. The frame of the unit functions as a substantially flat support pan for the air conditioning components, while having a lower portion which accommodates a generic curved contour of most vehicles the unit will be associated with, such as buses. The frame is devoid of upstanding wall portions on the sides adjacent to the sides of the vehicle, and on the ends of the frame which approach the sides. This frame structure facilitates the manufacture of the frame, the assembly of components on the frame, and servicing of the unit, and it enables the manufacturer of the vehicle to provide a bubble or skin for the air conditioner unit which accommodates the design and aesthetics of the vehicle.

Abstract: A refrigeration unit composed of a drop-in package to be accommodated within an aperture in the top of a cabinet, and comprising a plug insertable neatly into the aperture and mounting refrigeration components on top and an evaporator together with an air impeller in an underside compartment, abutment means on the plug to limit intrusion of the plug to a position substantially flush with the ceiling of the cabinet, and air ducts directing air flow from the air impeller in a path adjacent the ceiling due to a sweeping curvature of a wall of each air duct which influences the path of air flow in compliance with the "Coanda" effect.

Abstract: A warehouse having a cluster of inner cells for receiving and storing processed frozen food products at extremely low temperatures. The inner cells are surrounded by outer cells for receiving and storing processed refrigerated food products at a more moderate temperature. The outer cells function to insulate the inner cell from cooling temperature losses resulting from higher temperatures externally of the outer cell. The inner and outer cells being cooled by heat transfer of rising warm air from the cells to cooled air being driven by combination evaporator and fan units through closed loop finned duct systems located beneath the cell ceilings.

Abstract: A flat air conditioner for railway vehicle for installation on the roof of a vehicle is advantageous from the viewpoint of reducing air resistance to the vehicle and the design of the vehicle. The present invention provides such a vehicular air conditioner incorporating an horizontally longer compressor or compressors disposed with the longitudinal axes in a horizontal plane or disposed in a return air chamber to construct the air conditioner in a flat configuration with a small height and in a compact construction.

Abstract: An air conditioning unit having a power pack which includes an internal combustion engine coupled to a refrigerant compressor on a metallic support tray, with said air conditioning unit being suitable for mounting on the roof of a building via support curbing, notwithstanding the noise and vibration produced by the internal combustion engine. The air conditioning unit includes a metallic main frame, to which a metallic power pack support frame is fixed. The power pack support frame includes members which are continuously supported by the main frame via a low frequency damping material, such as cork, and members which extend between the supported members, but which are otherwise unsupported, to enable the unsupported members to function as leaf springs. The support tray of the power pack is mounted to the unsupported members of the power pack support frame via a plurality of isolation mounts.

Abstract: In an air conditioning system having the outdoor coil disposed in a wall opening with the outdoor air being required to flow horizontally inwardly pass through the coil and then flow horizontally outwardly as it is discharged, the propeller fan is placed in a horizontal plane at the top end of the coil such that the air is caused to flow into an upper plenum where the air is turned 90 degrees to be discharged. The height of the plenum is preferably chosen to optimize the performance while minimizing the plenum height.

Abstract: A compact air conditioner unit suitable for mounting on the roof of a bus. The unit has a frame which has a shallow height dimension for appearance and reduced drag, and a length dimension which enables the unit to be securely mounted between any two adjacent structural support struts of the vehicle. The air conditioner unit achieves compactness without loss of necessary evaporator and condenser coil surface area by splitting both the evaporator and condenser functions into two coils. Two evaporator coils are spaced laterally apart on the frame, and two condenser coils are nested between the spaced evaporator coils, such that midpoints of the condenser and evaporator coils lie in a common plane perpendicular to the sides of the vehicle. Condenser fans are mounted between the spaced condenser coils, and evaporator blowers are mounted outside each evaporator coil, between each evaporator coil and an adjacent side of the frame.

Abstract: A refrigeration unit for coin-operated, food item vending machines having box-like metal cabinets with substantially flat, vertical front panels; substantially flat, horizontal top panels; coin mechanisms within the cabinets; food item supporting, transporting and dispensing mechanisms within the cabinets; item selecting and operating mechanisms; and, item discharge ducts extending through and accessible at the exterior of said front panels. The refrigeration unit operates to recirculate and cool the air within the cabinets and to maintain food items therein at desired, safe, low temperatures. The refrigeration unit includes a horizontal, downwardly opening box-like base supported atop the top panel of a related machine with said top panel closing the bottom thereof. The base has a vertical partition extending transverse its interior and defining a downwardly opening air delivery chamber and a downwardly opening air return chamber.

Abstract: A flat air conditioner for railway vehicle for installation on the roof of a vehicle is advantageous from the viewpoint of reducing air resistance to the vehicle and the design of the vehicle. The present invention provides such a vehicular air conditioner incorporating a horizontally longer compressor or compressors disposed with the longitudinal axes in a horizontal plane or disposed in a return air chamber to construct the air conditioner in a flat configuration with a small height and in a compact construction.

Abstract: A roof jack is provided for mounting an air conditioner of the evaporative type on a pitched roof of a structure wherein is provided an upper frame member adapted for hinged connection with a lower frame member and said lower frame being adapted to serve as a plenum for connection to supply ducts and to contain a removable damper for preventing escape of air from the structure through the supply ducts and said upper and lower members and said upper and lower frame members being adapted for levelling by the use of prefabricated extension panels for the sides of said upper panel through which fixing screws may be inserted and fasten the sides of the upper member to the lower member.

Abstract: A bus air conditioner which fits within the normal profile of a bus, which, from a single integral package, provides either heated or cooled conditioned air to upper and lower air duct distribution systems within a bus. A frame of the air conditioner includes an upper evaporator section having a first evaporator blower assembly which provides conditioned air for the upper air duct distribution system. The frame further includes a lower condenser section, and an air duct which extends downwardly from the evaporator section, through the condenser section, to a duct portion below the condenser section having a second evaporator blower assembly. The second evaporator blower assembly provides conditioned air for the lower air duct distribution system of the bus.

Abstract: A bus air conditioning unit suitable for roof mounting on either end of a bus, including a metallic frame which includes a condenser and a control panel as integral structural members. A removable cover reveals all components of the unit which are not mounted outside the frame, which components include two condenser fans and two evaporator blowers mounted on a common axis, permitting a single double ended electric motor to drive them. The condenser fans are selected to draw outside air through a condenser, and then exhaust the air out the axial ends of the unit, when the unit is front mounted, and they are selected to draw outside air into the axial ends and exhaust it through the condenser, when the unit is rear mounted.

Abstract: A heat exchanger for use where any of a number of possible configurations of ductwork are possible, includes an approximately rectangular housing having a first panel with a surface area and with four corners including a first and a second corner situated diagonally opposite one another, and a third and fourth corner situated diagonally opposite one another. A heat exchanger is coupled to the panel situated approximately diagonally within the housing spanning from approximately the third corner to the fourth corner such that the housing is partitioned into a first chamber adjacent the first corner and a second chamber adjacent the second corner. A first duct is situated near the first corner on the first panel and occupying less than approximately 1/4 of the surface area, for coupling air to the first chamber. A second duct is situated near the second corner on the first panel and occupying less than approximately 1/4 of the surface area, for coupling air from the second chamber.

Abstract: A blow convector for indoor space air conditioning which can be installed in a room while maintaining its walls fully available for other uses, the blow convector having a segmental shape with a base substantially in the form of a circular segment and having an arcuate front.

Abstract: An air conditioning kiosk for human occupants and automatic teller machines or the like. Intake and exhaust compartments hidden beneath the roof communicate with the outside through openings in a recessed coving. A conventional vapor compression, room air conditioner, mounted beneath the intake compartment draws outside air for cooling the conditioner's condenser, and discharges the air to the exhaust compartment. Air drawn from the interior of the kiosk is cooled by the conditioner's evaporator and recirculated. A fan in the intake compartment maintains a continuous supply of fresh air at a positive pressure in the kiosk.

Abstract: An evaporative cooler unit is disclosed for installation as an "add-on" unit to a pre-existing roof-mounted refrigeration air-conditioning unit. The conventional air supply and return ducts from and to the air-conditioning unit are removed and are interconnected with ducts in the evaporative cooler conversion unit. Pressure actuated dampers are provided which automatically cause air to be supplied through the supply duct into the building from whichever one of the units, the refrigeration unit or the evaporative cooler unit, is operated. Similarly, return air always flows from the building into the return duct. When the refrigeration unit is operating, the return air recirculates in the normal manner. When the evaporative cooler unit is operating, the return air is vented outside into the area surrounding the cooler housing.

Abstract: An air conditioning unit (12) for a bus (10) which includes a roof mounted evaporator (36) having first and second transversely spaced evaporator sections (38, 40).

Abstract: A sun shroud is provided for a cooler housing and incorporates downwardly and outwardly inclined panel portions supported from and extending along upper marginal edges of the peripheral walls of the housing and a horizontal panel of a plan size and shape corresponding to the plan size and shape of the housing is provided and supported in vertically spaced relation above the top wall of the housing, the inclined panel portions including upper marginal edges spaced above the upper marginal edges of the side walls of the housing and below the corresponding marginal edges of the horizontal panel.

Abstract: An outdoor enclosure for air handling equipment is adaptable to accept add-on air handling equipment by virtue of a two-position cover panel. The cover panel has a generally rectangular shape and is attached to a side panel of the enclosure. The cover panel is selectively mountable in either a vertical position to cover a fresh air opening through the side panel or in an open position to uncover the opening. The cover is opened by pivoting it about its upper horizontal edge which is located just above the opening and swinging its lower edge outwardly away from the side panel. An add-on mist elimination filter is installed in a generally horizontal position betweeen the cover panel's lower edge and the lower edge of the side panel's opening. In the open position, the cover panel serves as a rain sheltering hood over the filter while the opening allows fresh outside air to be drawn into the suction side of a fan located inside the enclosure.

Abstract: A bus air conditioning unit suitable for roof mounting adjacent to the rear of a bus which includes an elongated support frame having first and second ends, front and rear portions, and a substantially open top portion. The elongated support frame is divided into forward and rear evaporator and condenser plenums, respectively, with reference to the front and rear of an associated bus, by an upstanding wall portion which extends between the first and second ends of the frame. The upstanding wall portion rises generally vertically for a predetermined dimension and it then slopes towards the front portion of the frame as it continues to rise, such that the condenser plenum includes the top portion of the frame. A condenser is supported by the substantially open top portion of the frame, an evaporator is mounted in the evaporator plenum across the front of the frame, and air conditioning system components are mounted in both said condenser and evaporator plenums.

Abstract: A protection layer upon a building roof is constructed with hollow ceramic blocks which after laying constitute a water pool with desirable depth and an air space thereupon to provide insulation against temperature and weather abuse when the roof is otherwise exposed directly under rain or shine. A typical block has generally rectangular hollow cross section to facilitate free channelling of water and air. Openings are provided on top of each block for the intake of water from overhead, and drain openings are optionally provided in the bottom of selected blocks to communicate with the down-pour drainage of the roof. The height of the overflow pipe is adjustable to set a desirable level of water reserved in the pool.

Abstract: A frameless air handling enclosure is made possible by the use of double-flanged edges on the enclosure's side and bottom panels. The edge configuration provides reinforcement and rigidity to an otherwise flexible panel and also provides a mating surface for fastening the panels together. The enclosure includes an access opening that is covered by a removable access panel having a lining of sound and thermal insulating material. The access panel is installed by first sliding it upward into engagement with a top flange retainer and then sliding it back down into engagement with a bottom flange retainer. Upon engagement with both flange retainers, the lining of insulation is compressed against the perimeter of the access opening. This compression fit not only helps hold the access panel firmly in place but also provides a weathertight seal around the perimeter of the opening.

Abstract: A universal cover for covering air conditioner compressor cabinets or the like which can be installed easily to protect the cabinet housing and the working parts therein. A sheet of flexible material, such as canvas, is provided with numerous strategically-placed fasteners and openings to allow the cover to fit a wide range of cabinet sizes.

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.