Abstract: A protective cover for preventing the entry of debris into an outdoor air conditioning unit while providing for the safe operation of the unit in the event of unintentional activation of the unit while the invented apparatus is installed. During normal operation, the invented protective air conditioning cover provides a covering for the top surface of an outdoor air conditioning unit, including the fan discharge opening, which is usually covered by a metallic grate. The protective cover is held in place on top of the unit by magnets. The placement of the magnets and the types of magnets used in the invented cover are designed to provide just enough attraction between the magnets and the metallic surface of the air conditioning unit that the invented cover is maintained in position upon the top of the unit during normal weather conditions, and all but the most extreme wind conditions.

Abstract: In a ceiling recessed type air conditioner including a case body hung from a ceiling slab via hanging bolts and a panel base mounted on the lower face side of the case body, a decorative frame can be selectively installed at different height positions on the side wall of the panel base via an installation position changing device. Thereby, even when the height space in the ceiling in which the case body is installed is limited and a part of the case body projects from the ceiling surface, a front panel portion can be installed with good appearance.

Abstract: A conventional air conditioning system has a heat recovery device installed therein such that the return air from the space is passed through a heat gaining portion thereof, and the resupply air passes through a heat rejection portion thereof. Substantially 100% outside air is passed through the heat rejection portion thereof where it is cooled prior to passing through the evaporator coil and to the space to be cooled. After the return air is passed through the heat gaining portion, it is passed through the condenser coil and then discharged outside. A subcooler is preferably provided downstream of the evaporator coil, and an evaporative cooler is preferably placed upstream of the heat gaining portion of the heat recovery device to provide substantially improved cooling and dehumidification characteristics.

Abstract: A cargo container is manufactured using mash seam welding or CO2 laser welding technology. Automatic welding replaces the multiple sheets of corrugated steel used for the side and roof panels with continuous coils of steel, resulting in lower material costs and reduced material handling. A single horizontal mash-weld or CO2 laser weld seam is needed to produce each panel, which are produced by joining two side-by-side sheets at their inner edges. Press and die assembly forms reinforcing ribs. Each panel has four straight welding edges, which enable automated welding. The cargo container includes a frame assembly made of tubular beams. The container further contains a pallet roller track assembly to facilitate loading and unloading of cargo to and from the container, and securing the pallet carrying the cargo to the container.

Abstract: A single package wall mounted HVAC unit comprising a cabinet assembly including a primary cabinet subassembly, a back panel subassembly adapted to close the open back of the back panel subassembly, and cabinet connection means for removably attaching the primary cabinet subassembly to the back panel subassembly so that the back panel subassembly can be attached to the wall of a structure and then the primary cabinet subassembly can be positioned on and attached to the back panel subassembly. Also disclosed is a blower mounting arrangement for selectively mounting the air circulation blower within the cabinet subassembly in different positions to attenuate the blower noise transmitted to the conditioned space. An interlock is disclosed for the control box to prevent the control box cover from being removed without disconnecting the HVAC unit from the power supply.

Abstract: Method of cooling air in under-roof spaces of buildings, comprising the following steps: a) mixing water, cement, aluminium powder and a material selected from sand, gravel and the like, into a smooth mixture; b) spreading the smooth mixture over the roof to obtain a uniform layer of porous concrete; c) drying the layer; and d) soaking the layer with water.

Abstract: A containment enclosure (1) for a cryogenic unit (2) has a chamber (7) in which the cryogenic unit (2) is located. A chamber wall (4, 5, 6) includes thermally insulating bricks (10, 11) for thermally insulating the cryogenic unit (2) in the chamber (7). The chamber wall (4, 5, 6) is impermeable to liquid leaking from the cryogenic unit (2). A sump (30) is provided for receiving any liquid leaking from the cryogenic unit (2). Withdrawing means (31) are provided for withdrawing liquid from the sump (30) through an open uppermost end of the sump (30).

Abstract: An air handling apparatus and method for installation where a cabinet is connected to a mounting plate with a mounting bracket, the mounting plate is attached to an electrical equipment enclosure. Gravity and latching screws secure the cabinet to the mounting plate and also facilitate a seal between the cabinet and the enclosure. After connection of the cabinet to the mounting plate, the mounting plate and mounting brackets are concealed from view by the cabinet and enclosure. The mounting bracket is a combination of hooks and slots. Panel elements of the cabinet are interconnected using a combination of hooks and slots with seals compressed between the panels. The cabinet includes a horizontally disposed evaporator coil, the evaporator coil between an evaporator blower and a condenser blower. Air conditioning elements are vertically stacked within the cabinet. Airflow in the cabinet is generally upward in both the internal and external circulation regions.

Abstract: Apparatus for radially distributing the flow leaving a centrifugal blower wheel and discharging the flow of conditioned air over the top of the indoor coil of an air conditioner unit back into the comfort region. A housing is positioned adjacent to the coil that contains a blower wheel having radially or rearwardly curved blades within a blind opening that passes inwardly from the vertical front wall of the housing. The opening has an upper section that extends across the top of the coil and a lower section that surrounds the blower wheel. The lower section includes a spiral shaped wall that connects to a linear wall that are arranged to coact with the blower to distribute air from the blower uniformly across the upper section of the opening.

Abstract: A support structure for interposition between a base of a sloping base cooler and a roof during installation of the cooler onto the roof. The support structure comprises a transition component adapted to be connected to the cooler and to ducting protruding through the roof to feed cooled air from the cooler into the ducting. The transition component includes a movable prop or flap, separate from or formed with the transition component, to be positioned between the transition component and a horizontal surface such that the transition component, when fitted to a sloping base cooler, maintains the cooler in a vertically upright condition for assembly or transportation or storage.

Abstract: A flush-mount enclosure, particularly for making provisions for air-conditioning systems, comprising a box-like containment body for refrigeration tubing and a power supply cable, a condensation collector being associable, so that it can be removed and turned through 180°, with said box-like body in a downward region, said collector having at least an outlet arranged at a lateral end thereof.

Abstract: An air conditioner which can be installed easily at a corner of a room is presented. This is an air conditioner which can be installed at a corner between a first wall and a second wall of a room. It has a frame body having an upper part, a lower part, and side parts, a blower for circulating air, a heat exchanger for exchanging heat with the air, an air diffuser for blowing out the air into the room, a space positioned at an edge of the corner, and a piping connected to the heat exchanger. The connection port of the piping is placed at least at one of (a) a position projecting into the space and (b) a place near the space. This is an installation tool for installing an air conditioner main body having a first side surface and a second side surface at a corner of a first wall and a second wall of a room. The tool includes a first installation board having a first base part and a first stopping part, and a second installation board having a second base part and a second stopping part.

Abstract: The present invention provides for an air conditioning unit for mounting within or on the roof of a vehicle which has a passenger compartment and air delivery ducts, the unit being adapted for conditioning of air with the passenger compartment of the bus. The unit comprises a casing having a longitudinal axis extending between ends and adapted to be attached to the roof of the vehicle with the longitudinal axis oriented front to back of the vehicle. A condenser section (24) is located centrally of the casing and adjacent the top thereof, the condenser section (24) including air delivery device (48) and at least one condenser coil (40) located adjacent the air delivery device (48).

Abstract: In order to cool a room, a cooling element fitted in the ceiling region is cooled to below the freezing point, preferably to about −40° C., during the cooling phases so that condensate forming thereon freezes immediately. During regeneration phases when the room is not in use, the cooling element is defrosted and the melted condensate is caught in a condensate tray beneath the cooling element and drained via a discharge. The great temperature difference between the room to be cooled and the cooling element also makes it possible to obtain a strong cooling effect with a small cooling element, especially by indirect radiation exchange between the room and the cooling element via an intermediate ceiling. The air in the room is also dehumidified since water vapor is deposited on and bonded to the cooling element in the form of ice.

Abstract: A method and apparatus for efficiently applying a thin film of water on a solar energy impacted surface, especially a building. By measuring the rate of evaporation, and the level of absorption of fluid by the surface, the apparatus applies fluid at appropriate times to achieve nearly 100% evaporation, thereby maximizing its cooling effects. The apparatus controls multiple control valves, each valve supplying fluid to one or more spray nozzles, thereby minimizing the need for excessively large water supply pipes.

Abstract: A refrigeration wall system including interlocking panels having fastening mechanisms coated with a backing material, and a method for making the fastening mechanisms. The fastening mechanisms are embedded within insulating material inside of the interlocking panels. The backing material improves the adherence of the fastening mechanisms to the insulating material and thereby increases the overall strength of the refrigerator wall system.

Abstract: Console air conditioning units particularly useful for retrofit conversions, but having advantageous features for new installations as well. For retrofit applications, the console air conditioning units have the same “footprint” as an original package unit, and accordingly can be used to replace a worn-out console package unit without requiring any architectural changes. An indoor cabinet is subdivided at least into a plenum compartment having an air discharge opening and either a machinery compartment or a room air return compartment. The machinery compartment or room air return compartment occupies only a portion of the width of the cabinet, and a utility storage volume occupies an adjacent portion of the width. Preferably the plenum compartment is located in an upper portion of the cabinet above the machinery compartment or room air return compartment, and extends substantially the entire width of the cabinet along a wall.

Abstract: Fins (6) of an indoor heat exchanger (4) for an separate type air conditioner are prevented from being deflected toward the inside and deformed by an external force imposed during transport. In the separate type air conditioner comprising: an indoor unit including an indoor air intake port (2), an indoor heat exchanger (4) bent into a front portion and a rear portion, an indoor fan, an indoor air blow-off port (5), etc.; an outdoor unit including an outdoor air intake port, an outdoor heat exchanger, an outdoor fan, an outdoor air blow-off port, a compressor, etc.; and pipes and wires connecting the indoor unit to the outdoor unit to form a refrigeration cycle and an electric circuit, a spacer (9) provided on top of the bent portion of the indoor heat exchanger (4) is provided with protruding faces (10, 11, 13) so that the protruding faces (10, 11, 13) are caused to abut on the upper inside of the fins (6) on the front side and the rear side of the indoor heat exchanger (4).

Abstract: A screen guard is utilized to protect fin coils of a fin-coil heat exchanger of an apparatus such as a heat pump or air conditioner. The screen guard prevents cottonwood seeds and other debris capable of forming a filter from obstructing the air flow over the fin coils. The screen guard comprises a wide mesh screen member and an adhesive attachment strip. The attachment strip may be magnetic so that it attaches directly to a ferrous housing of the apparatus. Alternatively, a VELCRO® fastener strip is fixed to the apparatus and the attachment strip is a complimentary VELCRO® strip which removably attaches to the fastener strip. The screen guard can be repeatedly removed and reattached for cleaning debris from the screen guard. A method of protecting the apparatus includes removing the screen guard for cleaning and thereafter reattaching the screen guard.

Abstract: A system and method for providing conditioned air to the interior space of a building includes separate dehumidification and sensible cooling functions. The separate dehumidification allows for much higher supply air temperatures, preferably within about 10° F. to about 15° F. of the air temperature of the building space. Low-velocity air distribution through a ceiling plenum or a vent into the space allows for very low fan static pressures, which greatly reduces fan energy usage compared to conventional ducted systems. The low static pressures and high supply-air temperatures allow the use of existing drop ceiling construction with little modification. Optional return air channels between an inner glazing and an outer glazing of exterior windows can virtually eliminate heating loads at the building perimeter, which virtually eliminates the need for simultaneous heating and cooling. The result is a major improvement in energy efficiency and comfort while reducing installed cost of the system.

Abstract: A weather shield is a cover of rigid material of sufficient size and shape, to accommodate the complete surrounding of the exterior unit of a heat pump, or central air conditioning system, which, when installed over the exterior unit, will be a shelter from the weather conditions of rain, snow, sleet, hail, wind, cold, and heat; by acting as an umbrella to divert the weather conditions, be a shield to impede the movement of the natural flow of air currents, act in the capacity of an energy saver, by collecting heat from solar rays through an absorbant pigment coating, or by repelling heat from solar rays through the use of a white reflective pigment coating, or attachable panels of a white durable material, act to decrease the recirculation of air flow produced by the exterior unit'fan which circulates air through the heat exchanger.

Abstract: An air-conditioning condensate drainage system for mounting to the roof membrane of the roof structure of buildings or for constructing directly onto the roof membrane of a building structure. The air-conditioning condensate drainage system has an isolation membrane having a bottom surface for assembly to a roof membrane. A pair of ridge structures are disposed in fixed relation with the isolation membrane and are disposed in spaced relation with one another and cooperate with the isolation membrane to define an air-conditioning condensate drainage channel between the spaced ridge structures. Each of the ridge structures has one or more ridge defining elements which is fixed to the isolation membrane and projects above the isolation membrane sufficiently to define a condensate drain channel therebetween.