Abstract: An air conditioner having a thermal insulation cover forming a pocket around the thermostat bulb which is mounted to the outside wall of the air intake chamber. The cover has an aperture and the outside wall has a plurality of holes communicating with the pocket whereby, when the blower is activated, a flow of ambient room air is drawn through the pocket so that the bulb accurately reflects the temperature of the room being cooled. The cover thermally isolated the thermostat bulb from hot outside fresh air so that the thermostat bulb is not falsely biased.

Abstract: Transport refrigeration apparatus including a condenser section containing an inverted U-shaped refrigerant condenser coil which defines a central opening which functions as a fan chamber having a vertically oriented air discharge side. A propeller fan is disposed in the central opening of the condenser coil which draws air through the condenser coil and discharges it through the vertically oriented discharge side of the opening. A metallic grille is disposed across the air discharge side of the central opening, with the grille having a plurality of horizontally spaced, vertically oriented louvers which straighten the discharge air flow in vertical planes and reduce short circuiting of the discharge air back into the condenser coil. The louvers are spaced by a dimension selected to enable the metallic grille to perform the function of a protective or safety grille across the fan chamber.

Abstract: The intermediate partition of a room air conditioner is provided with a downwardly extending slot in its upper edge such that installation and removal of the motor, with its attached fans, can be easily accomplished without removal of the partition. A filler plate is provided for insertion into the slot after the motor has been installed into its mount in the outdoor section.

Abstract: The fan drive motor mount of a room air conditioner is mounted on the base pan with the edge of one U-shaped member fastened directly to the base pan and with the side walls of the other U-shaped member partially overlapping the side walls of the first member and having means to secure the two members in an adjustable manner such that the first and second members can be appropriately spaced so as to accommodate any of various sized motors.

Abstract: The present invention relates to an insulating cover device for through wall appliances such as air conditioning and fan units. The insulating cover is of one piece construction and is designed to minimize heat losses through both the appliance and through any air gaps or wall sleeves and openings. The insulating device is designed to fit the appliance in place of the normal operating appliance cover.

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: The interface bracket, which supports a sealing gasket between the lower surface of a base pan and the front face of a sleeve lower wall, is designed so as to extend under the sleeve lower wall so as to overlap and support the lower wall from sagging. The integrity of the sealing relationship is therefore maintained. Provision is also made to automatically cam the sleeve lower wall from a sagged position by the use of a bracket with an angled leading edge.

Abstract: An auxiliary frame (10) mounted in the wall hole (33) of a building comprises at its outside an external facing frame (14) and at its inside an inner facing frame (15) which include respective window casements. The space inside the installation frame (10) is divided into a window chamber (11) and an auxiliary chamber (12) separated by a partition wall (13). The auxiliary chamber (12) contains rollers (28) to unwind curtain webs (29) which may enter through slots (27) of the partition wall (13) into the window chamber (11) to form there subdivided air chambers. Beneath the window chamber (11), another auxiliary chamber (45) is available to receive an air conditioner with air humidifier, air filter, heat exchanger, blower and a heating- and/or cooling system.

Abstract: A room air conditioner of a window mounted unit type having an air inlet grill and an air outlet grill on a front panel of the air conditioner. The air conditioner has a blower, a heat exchanger and an air passage directing an air flow from the blower to the heat exchanger, and an air guide arrangement in the air passage. The air guide arrangement guides the air flow from the blower to the heat exchanger in a uniform manner to minimize deviation of air flow distribution in the air passage to the heat exchanger.

Abstract: In an air conditioner having an air conditioner body being insertable into an opening formed in a wall plate, the air conditioner body comprising a casing provided with flanges for fixing the body at a front circumferential part, and a front panel attached to the front opening of the casing, the width of the front panel is greater than the width of the casing and decoration covers extending vertically to cover the flanges are provided at the front of the air conditioner body.

Abstract: Method and apparatus are provided for mounting an air conditioner in a wall opening with a single bracket attached to the lower wall and extending upwardly into the wall opening. The air conditioning housing is formed with a lip on its upper surface to engage the inner surface of the upper wall, and an indent on its lower wall to receive the upwardly extending bracket when the air conditioner slips down into its installed position. Means are provided to secure the bracket to the air conditioner housing to prevent removal of the system from outside the building.

Abstract: Integrally formed with a molded plastic housing for a room air conditioner, is a pair of axially spaced walls whose inner edges closely surround the periphery of the condenser fan such that the dead air space created between the walls tends to prevent the recirculation of air around the fan periphery when the fan is in operation.

Abstract: An air conditioner system in a building comprising a heat exchanger unit disposed below a building floor, a pair of juxtaposed air passages disposed within a hollow sill in heat exchange relationship to an internal conduit for a heat transferring medium and communicating with the outside air through the heat exchanger unit, a fresh air outlet defined in a top wall of the sill and communicating with the heat exchanger unit through one of the air passages, and a room air inlet defined in a side wall of the sill and communicating with the heat exchanger unit through the other air passage. The air conditioner system thus constructed is sightly to view and provides an air circulation for better air conditioning effects and a uniform air temperature distribution in a house interior space.

Abstract: A plastic housing structure for an air conditioning system is provided with a plastic cover at its indoor end, with fastening means formed integrally with those structures such that no separate fastening devices are required. The overlapping skirt portion of the cover includes ribs with notches formed on the top and bottom sides of the skirt. The overlapped portion of the housing structure includes corresponding upwardly and downwardly extending flanges to engage with the notches to retain the cover in its installed position.

Abstract: An air conditioner housing is formed of upper and lower polymeric shells having flanges on the outer side of their abutting rims. Together, the upper and lower flanges form a dovetail for slideably receiving an aluminum channel member thereover to secure the two elements together and provide for load sharing therebetween.

Abstract: According to the invention a baffle is provided in a dual inlet air conditioner blower wheel and is selectively movable within the blower wheel between the inlets to adjust the air delivery through the inlets while maintaining a substantially constant total volume delivery. The air mixture is adjustable is desired proportions between full volume indoor and full volume outdoor air and is presented to a blower wheel and centrifugally propelled into a space to be conditioned.

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: An air conditioner having an improved fresh air path from the outward compartment into the evaporator blower wheel. The evaporator blower motor is mounted on the outward side of the main partition and is spaced from the evaporator blower wheel by an air chamber that has a vent communicating with fresh air. Accordingly, the fresh air enters the evaporator blower wheel from the air chamber which is on the opposite side of the evaporator blower wheel from which the recirculation air enters. The more direct fresh air path provides a higher positive draft thus creating a higher percentage of fresh air in the mixture.

Abstract: A self-contained air-conditioning unit which includes an outer box, a base plate slidably removably inserted in the outer box, and a bulkhead on the base plate partitioning the interior of the outer box into an indoor portion and an outdoor portion. A compressor and a condenser are provided adjacent a rear face of the outer box. In the outdoor portion are provided a compresser, and a condenser adjacent the rear face of the outer box. The condenser includes a central portion and left and right curved ends. An evaporator and an indoor fan are provided in the indoor portion. A fan motor drives the indoor fan and an outdoor fan which faces the central portion of the condenser. Air inlets having louvers are provided in the outer box adjacent the curved ends of the condenser. Blow-off ports are provided in the outer box between the outdoor fan and the bulkhead. A slinger ring is disposed on the outdoor fan to scatter condensed water on the base plate.

Abstract: A single-body type air conditioner in which a casing and a base plate held in the casing are defined by an intermediate partition to form a room side section and an outdoor side section; a heat exchanger and a fan are placed in each of the sections; a driving motor is positioned to drive the fans; an air blowing passage is formed below the room side heat exchanger and an air intake grille is formed at the upper part and an air blowing louver is formed at the lower part of a front panel. Air blowing in the vertical and lateral direction is attainable as desired.

Abstract: An air-conditioning machine having, in blocks within the same box body, an indoor-air circulation wind passage, an outdoor-air circulation wind passage, and a ventilation wind passage. An opposite-flow heat exchanger, designed to recover the heat in the ventilation wind passage, is provided. One of two opposite faces having two wind passage openings in one face of the opposite-flow heat exchanger faces the outdoor-air circulation wind passage. The other thereof faces the indoor-air circulation wind passage. Shutters or dampers are provided on both of the faces. Functions of cooling and heating, heating and exchange ventilation, and simultaneous feed and exhaust non-heat-exchange ventilation can be exhibited.

Abstract: A heat pump with a compressor arrangement whose condenser forms a heater for water, and whose evaporator is arranged to be heated by air which by means of a fan in a fan space is blown through the evaporator. An air path for ambient air or an air pass for room air is connected alternatively to the fan space. A control means is arranged between the fan space and two air passes for selective connection of one or the other air pass to the fan space, and with the control means in a first position, the fan is arranged to blow air through an air path with ambient air and through the evaporator for water heating, and with the control means set in another position, the fan blows air through another air path with room air and through the evaporator.

Abstract: A casing for an interior unit of a split type air conditioner including a one piece, molded fan casing housing an upper wall, a curved rear wall connected to the upper wall, side walls connected to each of upper wall and the curved wall and a separator including a flat portion generally parallel with the upper wall.

Abstract: Apparatus for securing wires passing through a partition of an air conditioning unit is disclosed. A wire slot having rounded edges is formed in a partition. A wire seal is slidably secured to the partition having a flare portion extending through the wire slot. Upon assembly, the wire seal is slid downwardly with the flare portion extending through the wire slot such that the wires are secured at the bottom of the slot and the remainder of the slot has a body portion of the wire seal preventing air flow therethrough. The wire seal is secured in position via fastening means and the flare portion acts to not only compress the wires at the bottom of the wire slot but to angle them downwardly preventing moisture from flowing along the wires into the indoor section of the unit.

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: The present invention relates to a weather tight cover which overlies the portion of a through-the-wall air conditioner that protrudes into a room. The cover has a peripheral sealing gasket to tightly fit against the molding or wall surfaces surrounding the opening for the air conditioner to thereby tightly seal the entire unit to provide for a draft free, insulated cover that conserves energy by substantially reducing heat losses through the interior air conditioner openings and through gaps between the outer air conditioner housing and the edges of the opening through the wall.

Abstract: Apparatus including a discharge door assembly for use with a room air conditioner. A discharge door is pivotally mounted at the ends and has a tab extending therefrom into a slot formed in a frame portion of the front panel of the air conditioning unit. The tab and slot coact to limit inward deflection of the discharge door. The frame portion of the front panel is angled to contact the discharge door to limit angular rotation thereof.

Abstract: Apparatus is disclosed for forming a subassembly for use with an air conditioning unit. This subassembly is formed from a casing having a grille attached thereto. Means are provided for securing the grille to the casing from the interior of the casing with said securing means being not directly observable from a position exterior of the unit.

Abstract: A thermoelectric front-opening refrigerator suitable for mounting in recreational vehicles includes a shallow external housing enclosing an electric fan unit and an external heat exchanger. A housing extends to a front grill above a front door of the refrigerator so that air drawn into the housing by the fan unit is blown at high velocity through fins of the external heat exchanger and then through an opening in the grill unit and thereby is ejected at high velocity away from the vicinity of the electric refrigerator so that air heated by the external heat exchanger is not recirculated through the thermoelectric refrigerator.

Abstract: Apparatus for use in a self-contained air conditioning unit for controlling the operation of a door. The combination of pins extending from the door and slots defined by the end surface of a casing provide lost motion rotation operation of the door. Additionally, a friction wedge is provided which both secures the door in any of a range of positions and further serves to allow the door to open a predetermined amount when the unit is energized and air flow is discharged through the opening covered by the door.

Abstract: An interior unit of a split type air-conditioning apparatus which is usually mounted on a wall of a room to be cooled and is extremely thin. The unit consists of a cabinet structure including a front panel, a middle frame and a rear plate, said front panel having an air inlet opening and an air outlet opening. Also included is a centrifugal fan, preferably a turbo fan with a plurality of backward curved blades, specially designed to adapt to the unit. The means for driving said fan are designed to be partly accommodated in the body of the turbo fan for the purpose of decreasing the depth of the unit.

Abstract: A door construction for hingedly mounting a room air conditioner control area access door on the front cover panel. The door includes an L-shaped angle extension formed integrally with the door rearwardly pivoted vertical edge. The construction defines a recessed shoulder positioned in an offset manner from the door outer face so as to underlie a free edge of the panel when the door and panel are in co-planar relation to limit inward flexing of the panel. The angle is further adapted, upon opening of the door, to be movable into engagement with a portion of the control area housing to positively limit the pivotal location of the door to obviate contact of the door outer decorative face with the panel free edge.

Abstract: A downflow furnace assembly having a combustible floor base including a pair of parallel side rails, a pair of parallel, variable length cross rails, and integral spacing flanges, and a method of constructing the combustible floor base. The integral spacing flanges are for maintaining the lower plenum of the downflow furnace assembly at a preset distance from the edge of a combustible floor and are formed by die pressing the same metal sheets that are pressed to form the rails of the floor base. The variable length cross rails are each comprised of a pair of interfitted channel members that are in slidable communication with each other. By sliding the channel members with respect to each other, the lengths of the cross rails and the width of the base can be adjusted. The surface of each channel member defines a plurality of holes, and each cross rail can be adjusted to various preset lengths by aligning different holes.

Abstract: An air conditioner including an air intake, a blower for drawing air into the air conditioner through the air intake, a heat exchanger in the path of the air, and an air exit structure in the path of the air. The air exit structure is a plate-like sheet of rigid material having an aperture therein forming a nozzle for issuing a main stream of air as the air passes therethrough. A control chamber downstream of the nozzle develops a pressure differential in the main stream of air flowing from the nozzle as it flows between a pair of spaced opposed diverging walls to control the direction of flow of the stream. The pressure differential is developed by closing control apertures in the chamber by interceptors over the control apertures.

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: A window type air conditioner having a movable shield member installed on the air conditioner outer case at the rear radiator compartment portion thereof, to either block the ventilation passageways provided at the rear portion when the air conditioner is not in use, or to admit air to the air conditioner when the air conditioner is in use. The shield member can be either slidably, pivotably or rollably moved relative to the air conditioner ventilation passageways, and can be manually or electrically actuated.

Abstract: A fan motor unit for use in combination with a room air conditioner has two separate motors formed in a unitary housing for separately driving the evaporator and the condenser coil fans. By tailoring the characteristics of each motor to the requirements of each motor's respective fans, a reduction in total energy consumed by the unit can be realized.

Abstract: Apparatus for securing capillary and other tubes within a refrigeration machine. A capillary retainer clip having a plurality of sections affixed thereto is mounted within a refrigeration machine such that the sections extending therefrom form elongated openings and spaced regions therebetween. The tubes are inserted between the sections such that the sections are displaced as the tube is slid through the opening to the spaced region. When the tube is in the spaced region the sections then return to their original position securing the tube within the spaced region.

Abstract: A self-contained air conditioner unit of the type divided into indoor and outdoor chambers and, more particularly, to a venting system including a duct having an air directional valve system wherein in a vent mode a first passageway is provided for directing a portion of outdoor air being recirculated by the condenser fan into the indoor chamber, and a second passageway arranged in the no-vent mode to provide a substantially unobstructed outdoor air flow to the condenser.

Abstract: A room air conditioner in which the interior of a cabinet is divided into an indoor portion and an outdoor portion by a partition plate having a non-vertical section, and a fan motor is supported in the outdoor portion in such a manner that its rotary shaft is disposed perpendicular to the bottom of the cabinet and penetrates the partition plate at one end thereof to extend into the indoor portion. A first centrifugal fan is mounted at one end of the rotary shaft of the fan motor while a second Silocco fan is mounted at the other end thereof disposed in the outdoor portion.

Abstract: Apparatus forming a self-contained air conditioning unit which includes parts and subassemblies of a particular configuration that may be united with each other in order to construct the apparatus with a minimum of cost and effort.

Abstract: An air-conditioning apparatus, of the room air-conditioning type which can be easily installed at any desired location in a room, as in a window therein, comprising a cabinet structure, a cabinet insulation structure and a partition board dividing the interior of the cabinet into an interior compartment and an exterior compartment. The insulation structure consists of right side, left side, top and bottom insulation boards. The insulation structure and the partition board are all made of plastic insulation material, such as polystyrene resin foam. Each insulation board has a plurality of projections and grooves corresponding with each other and with portions of the refrigeration components, such as the condenser and the evaporator, so that these components are fixedly interposed therebetween, when assembled.

Abstract: A control mechanism for moving a door of an air conditioner which includes a mounted movable carriage in contact with a biased door. The carriage by means of a connected resilient arm containing a pin which slidably follows a ramp arrangement holds the door in an open position when operated in a single direction and released. Upon the second operation in the same direction and subsequent release the biased door returns to a closed position and the control mechanism returns to its initial position.

Abstract: An air conditioner for dwelling rooms or the like, of the type wherein two air flows are maintained in communication with the room inside and respectively with the outer atmosphere, in cooperation with one or two holes made in the shutter glass panes of a room window. Said air conditioner is installed out of the window, on the window sill, and is put in communication with the room inside through air flow ducts mating with said glass pane holes when the window inner shutters are closed, in order to reduce the air conditioner noise and allow a free inner shutter opening. The air conditioner is associated with an upper support for the edge of the window outer rolling shutter, as well as with lateral opaque panels in order to allow a complete room darkening without hindering the air conditioner operation.

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 window construction to reduce temperature rises in building interiors caused by direct sunlight entering through the windows. The window comprises two parallel, spaced apart window panes with a space between them filled with a suitable heat exchange fluid such as water. A heat exchanger coupled to a refrigeration system cools the water while the water withdraws heat energy, i.e. infrared radiation from the sunlight. The refrigeration system is activated in response to direct sunlight entering through the window by either employing suitable light/heat sensors or by installing on the exterior building wall adjacent the window a heat absorbing plate which is exposed to the sunlight and which supplies the energy to drive an absorption refrigeration system coupled to the heat exchanger.

Abstract: A room air conditioning unit has an air flow guide mechanism which provides an oscillating-type of air sweep louvered grill for the unit discharge duct. A motor with suitable gear reduction supplies power to a double acting barrel cam having a curved surface matching the radius of the center of rotation of the grill assembly to a point of contact of a follower fixed to the air conditioner unit front cabinet housing. The cam has a groove receiving the follower to transmit the desired amount of movement to rock the guide mechanism about a horizontal axis to provide a vertical air sweep. An eccentric pin on the cam drives a vertical louvered actuating rack to generate horizontal air sweep. The cam follower may be disengaged from the cam groove when vertical air sweep action is not desired.

Abstract: A window sash intended for use in conjunction with windows of homes or buildings. The invention comprises a short sash constructed of varying designs, materials and dimensions in order that it may work in conjunction with all window units in the building trade. It is to be inserted into the existing tracks of the window unit for which it is intended. The said invented sash is intended to replace the existing lower window sash of any window that may be chosen as the recipient for a receptacle such as an air conditioner window unit or window fan and the like.

Abstract: An add-on humidifier kit for use with a room air conditioner includes a cabinet frame extension for mounting on the room-side of the cabinet sleeve. The extension is composed of an upper water distribution header and a lower drain trough retaining a water pad located in an extension of the discharge duct of the air conditioner, while an electrical heating unit is mounted in the extension to heat the return room air to achieve a comfortable temperature, allowing the heated air to pick up moisture from the water pad. A portable water tank assembly is adapted to be positioned on the floor beneath the air conditioner and electrically coupled to the air conditioner through separable connectors providing tank mounted controls for the heating unit along with a humidistat, water flow regulator and water pump mounted in the water tank unit.

Abstract: An air conditioning unit of the type adapted for installation externally of the space to be conditioned includes an outer housing separated into internal compartments by interior partition means and includes a belt-driven blower in one compartment for forcing air through heat exchanger means including a refrigerant evaporator, with the motor for driving the blowers being located in a compartment separate from that in which the blowers are located, the motor being cantilever mounted on a wall between the compartments with means provided to fasten the motor so that it may be shifted toward and away from the blowers to adjust belt tension but without uncovering an opening in the wall through which the blower motor shaft projects. Thus motor heat is prevented from mingling with the air which is blown across the refrigerant evaporator.