Abstract: An air conditioner of the invention is formed of a main body in a box form with a partition panel for dividing indoor and outdoor heat converter rooms, a base holder situated in the main body under the opening, a damper supported on the base holder for covering an opening of the partition panel to be movable relative to the opening of the partition panel, a control part movably disposed on the base holder, and an elongated connection member for connecting the control part and the damper to move the damper by operating the control part. The connection member is made of a synthetic resin and includes at both ends connecting devices integrally formed therewith to be connected to the control part and the damper. Also, a holding device is integrally formed with the base holder. The holding device guides the connection member and includes a holding part with a substantially C-shaped cross section for holding the connection member therein.

Abstract: An integral type air conditioning apparatus in which a ventilation operation lever and a ventilation door are integrated with each other.

Abstract: An integral type air conditioner intended to suppress the reduction in air conditioning ability to the utmost, even in introducing open air, includes a partitioning plate for partitioning the interior of the main body into an indoor side chamber and the outdoor side chamber. There is provided a suction port for introducing an air in the outdoor side chamber into the indoor side chamber, and a damper positioned in the outdoor side chamber for opening/closing the suction port. In the indoor side chamber, there are provided a cross-flow fan and a rear casing of the cross-flow fan. Further, on the windward side portion of the rear casing, there is provided auxiliary suction ports that communited with the suction port.

Abstract: Disclosed is a process for supplying cold to at least one refrigerated enclosure particularly an open enclosure for the display and sale of fresh products in a supermarket, characterized in that:a) in the sales point are disposed said open enclosures provided in manner known per se with cold air dispensing and recovery nozzles, passing through the interior of the enclosures, the air streams sweeping the products displayed and the air heating up by taking calories exchanged from the products;b) there is positioned in a zone offset with respect to said enclosures and chosen for its convenient access, an air cooling plant principally comprising an evaporator of refrigerant liquid-gas and a ventilator, this plant is furthermore supplied with refrigerant by a refrigerating unit;c) the cold air coming from the evaporator of said plant is entrained by forced circulation through appropriate pipes towards said enclosures, the cold air coming from the air cooling plant being delivered to cold air dispensing nozzles ser

Abstract: In an air conditioner with ventilating means having a port provided at a partition wall dividing a bulkhead of the air conditioner into the inside and outside sections, and a blower for recirculating the indoor air. The ventilating means according to the invention comprise throttle means provided at the port to selectively opening the port by halves and close the port entirely; air introducing means provided at the throttle means for directing the recirculated indoor air stream to flow against thereby causing the outdoor air to be introduced from the port; and adjusting means connected to the throttle means to selectively position the throttle means between the open and close positions.

Abstract: An air-conditioning plant for motor vehicles, which comprises a condenser and an evaporator, is developed and disposed in such a way that it may be integrated, as a pre-assembled construction unit, into the roof frame of a roof construction of a motor vehicle. The condenser contains a large surface condenser block disposed so as to be inclined downwardly toward the front end of the vehicle and lowered partly below the level of the roof. The condenser fans are disposed at the height of the tail end of the vehicle. Below the condenser, evaporator blocks of the evaporator are arranged standing edgewise such that, between the evaporator blocks, a channel-shaped space remains open but which is closed toward the side of the roof by the bottom of the condenser trough. This channel-shaped space runs continuously in the longitudinal direction of the vehicle.

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: The apparatus comprises an air delivery chamber and an air extraction chamber which together define a cooling zone, said delivery chamber and said extraction chamber each having a fan and said air delivery chamber having a perforated face plate through which air is delivered into said cooling zone, said delivery chamber and said extraction chamber being connected together by ducting, and a plurality of mutually co-operable dampers in said ducting for selectively controlling the amount of humidified air passing from said extraction chamber to said delivery chamber and exhaust and for selectively controlling the amount of air from atmosphere being delivered to said delivery chamber.

Abstract: An air conditioner comprises an air-to-air heat exchanger; a fresh air supply duct, a fresh air by-pass duct, a used air exhaust duct, and a used air by-pass duct, the fresh air supply duct and the used air exhaust duct being respectively connected to the air-to-air heat exchanger, the fresh air supply duct having a part in common with the used air by-pass duct, and the used air exhaust duct having a part in common with the fresh air by-pass duct. Included are a condenser provided in the common part of the fresh air supply duct, and an evaporator provided in the common part of the used air exhaust duct, the condenser and the evaporator being parts of a heat pump. A blower is provided in the common part of the fresh air supply duct and is connected to the used air by-pass duct, and a separate blower is provided in the common part of the used air exhaust duct and is connected to the fresh air by-pass duct.

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: 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: An air temperature regulating or conditioning control apparatus for use in a space having one or more refrigerated display fixtures. The fixtures have an open refrigerated display zone separated from the conditioned room space by one or more planes (curtains) of refrigerated air substantially lower in temperature than the conditioned room space, which absorb energy from the room air adjacent these planes thereby causing it to be cooled. The apparatus comprises a housing having a return air chamber and a make-up air chamber isolated from the return air chamber. Each of these parallel chambers has an outlet connected to a mixing compartment for mixing the conditioned air received from both chambers. An air moving means is connected to the mixing compartment for displacing the mixed conditioned air through air flow convection ducts back into the space. Each of the chambers further has an air intake or inlet, a filter section and a cooling section.

Abstract: An air conditioning apparatus for use in industrial facilities includes a housing subdivided into three compartments by two partitions spaced from one another along the height of the housing. The top compartment is formed with an opening on its side wall and provided with a fan positioned on the top of the housing. The foul air admitted into said opening is extracted into atmosphere by the fan. A number of fans are also positioned on the middle partition and a number of respective openings covered with gratings are provided on the walls of the middle and the bottom compartments. All the fans are electrically controlled from outside of the housing to draw air through the apparatus for refreshing air in the room, for filtering, heating or humidifying air in the room when desired.

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: A door operating mechanism for an air conditioning unit including a bellcrank actuator and pressure plate assembly having an offset pivot point. The outer end of the actuator arm is connected to the door by a resilient linear push-pull rod. The door is releasably retained in a plurality of intermediate open positions by rotation of the actuator between its closed or fully open position and with the push-pull rod having a predetermined length with respect to the door and the actuator in its closed position whereby upon the actuator being retained in its door closed position, the push-pull rod is resiliently bowed to provide a biasing force on the door to retain the same in a substantially air-sealed arrangement with the door opening.

Abstract: A heating system which includes a combination of a sliding vane compressor, a positive pressure combustor and a sliding vane expander is disclosed. The components of the present system have been found to operate together to permit full use of the B.T.U. value of fuel. In an alternative embodiment, the heating system uses heat extracted from the ambient air as the heat source. The system may also be operated as an air conditioning system, rejecting heat from the system to the ambient air.

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: A method of and an air conditioning unit for re-conditioning air supplied by a central air conditioning system and circulated through a space to be air conditioned, characterized in that water condensate produced by the evaporation of a refrigerant is vaporized by the heat of condensation of the refrigerant and is discharged from the ceiling chamber above the space air conditioned.

Abstract: A centrifugal blower assembly having apparatus for optionally directing inlet air thereto from a plurality of air sources and which may be equipped with or coupled to, means for treating the inlet air prior to delivery thereof to the centrifugal blower assembly.

Abstract: A simple climate control device is disclosed which can independently, or jointly, to the degree desired, ventilate and/or dehumidify and/or cool a dwelling. The device provides a way of supplying fresh outside air to a building or other space at a preferred humidity level while optionally cooling the inside air, and as desired dehumidifying the inside air to maintain the inside environment at a preferred temperature and at a preferred relative humidity, with gradual displacement of stale air by fresh air.

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