Abstract: An apparatus for cooling a vessel containing molten metal has a quantity of liquid coolant atomized by a gaseous medium and onto a surface to be cooled. The supply of gaseous medium is constant while the supply of liquid coolant to the spray nozzles is controlled by at least one valve the operation of which is brought about by a non-electrical temperature responsive element in thermal contact with the surface to be cooled. The rate at which the liquid coolant is sprayed on to the hot surface is controlled such that the volume of coolant sprayed on to the surface to be cooled does not exceed the volume of liquid that is capable of being vaporized from the surface.

Abstract: A device for evaporatively cooling the passenger interior of a motor vehicle, utilizing the vehicle ventiliation ducting and blower. An electrical pump provides water from a vehicle-mounted reservoir to a spray nozzle mounted to discharge into ventilating air entering the outside air inlet of the ventilation ducting.

Abstract: A humidity control system is provided for controlling the humidity of the air confined within a container. The humidity control system includes sensors for determining the temperature of the air both within and outside the container. The sensors are also constructed to determine the humidity of the air inside the container. A controlled droplet applicator that is responsive to a humidity control signal is provided for increasing the humidity of the air within the container. A data processor is responsive to the sensors for providing the humidity control signal to increase and decrease the humidity of the air within the container. The humidity control system also includes a water flow control system for controlling the flow of water within the container. The water flow control system is responsive to the data processor for substantially preventing water from freezing in the controlled droplet applicator.

Abstract: A liquid evaporating apparatus includes a liquid inlet 1 to which an evaporator 2 is connected which incorporates a gas inlet 28 and gas flow channels defined by vapor-permeable hydrophobic walls 23, 24, 25, 26. The apparatus may be used to moisturize air in a room, in which case it is configured to circulate room air through the evaporator and to discharge vaporized liquid through the output side 22 of the evaporator and into the room. Alternatively, the apparatus may be used to cleanse liquid, in which case it includes a condensing chamber 3 connected to the output side of the evaporator. The apparatus will also include a closed gas loop 4 which is located between the output side and the input side 21 of the evaporator and which incorporates a fan 5 for transporting a vapor-gas mixture continuously to the condensing chamber.

Abstract: There is described an analyzer for determining analytes of a body liquid, in which stacks of test elements are stored prior to use. To control the level of humidity in which the stacks are stored, first and second compartments are provided with access openings connecting them to the stack-storage area. A mechanism is provided for selectively closing off and opening up the access openings, and for actively forcing air to flow from either of the compartments into the storage area. One of the compartments has a supply of water, and the other has a desiccant.

Abstract: Improved means for automatically controlling an evaporative cooler having a pump and blower, said control system comprising a solid state electronic temperature sensing circuit capable of sensing temperature differences of considerably less than 0.1 degree Fahrenheit, a timer for activating the cooler pump a predetermined period prior to and following activation of the blower, logic means for controlling activation and cycling of said blower, and humidity sensing means for developing an electrical signal indicative of excessive atmospheric humidity for turning off said cooler and controlling an associated air conditioner.

Abstract: The invention concerns an air conditioning installation with centrifugal sprayers (1). Said installation is essentially comprised of centrifugal sprayers (1) each provided with a deflector (2) and connected to a loop circuit (3) incorporating a buffer reservoir (4) which is supplied with liquid, a centrifugal purifier (5), a filter (6), a pump (7), individual flow regulating devices (8) and a collective flow regulating electro-valve (9), controlled by a regulation device (10) which is servo-controlled by a temperature sensor (11) and by a hygrometry sensor (12). The driving motors (13) for the sprayers (1) are power supplied through an adjustable frequency inverter (14).

Abstract: An integrated precision humidity and temperature control system of research laboratory quality is disclosed in which air flow, water spray and refrigeration apparatuses are sequenced automatically by solid state controls linked in a cooperative manner. Very stable and precise relative humidity and control air temperature constancies are maintainable.

Abstract: An absolute humidity sensor and a thermostat are located in an area where humidity and temperature are to be controlled. Air from this area is circulated through an air washer having a dry bulb temperature sensor at its discharge. Output signals from the absolute humidity and dry bulb temperature sensors are utilized to operate the air washer to control the moisture content of its discharge air. The thermostat operates a bypass damper to control the amount of circulating air which passes through the washer.

Abstract: An air conditioning system is disclosed which employs an air washer for treating variable volumes of air moving through the air washer per unit of time. The air washer includes a moisture eliminator that is provided with means for changing its effective face area in response to changes in the volume of air moving through the air washer per unit of time.

Abstract: Apparatus (10) for applying mist or spray to an environment such as one in which plants (11) are growing including a monitoring head (12) arranged in the environment to sense the humidity therein by measurements of temperature and a control device (13) for actuating mist or spray heads (15) to apply mist or spray to the plants (11) in accordance with the humidity sensed by the monitoring head (12).

Abstract: An improved humidification system for jet-powered commercial aircraft comprising an evaporator adapted to add moisture to a gas flow, a gas flow control system for applying to the evaporator a gas flow having an internal energy sufficient to vaporize the moisture and a temperature measuring system for measuring the temperature of the gas flow exiting from the evaporator for regulating the amount of moisture added to the gas flow so as to maintain the evaporator exit temperature constant is disclosed.

Abstract: The preferred embodiment of the invention disclosed in this application includes a building module having at least one compartment therein in which is contained a toilet system for bacteriologically breaking down solid waste and paper to provide a relatively pure liquid effluent. The toilet communicates with a flush tank into which the effluent is discharged and which communicates with a pump for pumping the effluent to an evaporator for removing excess effluent from the toilet system. Preferably the evaporator utilizes the effluent as a heat exchange medium for heating or cooling air discharged to each toilet compartment which air is circulated back to the atmosphere through a vent opening to help remove odors from the compartment. The evaporator may be arranged to aerate the effluent which is then discharged back to the flush tank so that it can be used to flush the toilet and enhance the biological breakdown of waste.

Abstract: A piping arrangement for an air washer is disclosed which enables the air washer to maintain constant dewpoint of air passing from the leaving side of the air washer. Chilled water is sprayed from a first manifold and is used to cool air to a required wet bulb temperature. The air is then passed through subsequent manifolds having spray nozzles which further humidify the air until the air reaches a required dewpoint temperature in a substantially saturated state.