Abstract: A carburettor metering system comprises a fuel evaporator 113 consisting of porous parallel plates 114 with their lower portions immersed in fuel 121, fuel metering means 122 for supplying fuel to the evaporator 113, and a laminar flow air restrictor 128 comprising a series of parallel plates 127 separated by spacers and defining narrow gaps between the plates 127. Such an arrangement enables a substantially constant air/fuel mixture strength to be obtained over a wide range of air flow rates in single cylinder engines. Furthermore the supply of mixture to the engine by way of an exit tube 126 may be controlled by a valve member 132 coupled to the engine governor so that the rate of flow of mixture varies in dependence on the load, and additionally so as to change the system between two modes of carburettor operation, namely lean operation, which is provided up to about three quarters load, and rich operation in which additional fuel is supplied to the evaporator 113.

Abstract: A process and apparatus for delivering an involatile reagent in gaseous form, wherein an involatile reagent source liquid is flash vaporized on a vaporization matrix structure at elevated temperature. A carrier gas may be flowed past the flash vaporzation matrix structure to yield a carrier gas mixture containing the flash vaporized source reagent. The matrix structure preferably has a high surface-to-volume ratio, and may sutiably comprise a foraminous matrix element such as screen mesh onto which the reagent source liquid is distributed for flash vaporization. The invention is particularly useful for delivery of Group II reagents and compounds and complexes of early transition metals such as zirconium and hafnium, and may be usefully employed with Group II beta-diketonate source layers, e.g.

Abstract: An evaporative humidifier includes a base having a portion defining a reservoir for holding a quantity of water. A housing is mounted on the base over the reservoir, the housing having an air inlet and an air outlet. A cylindrically shaped wick filter is seated in the reservoir and extends up into the housing, the cylindrically shaped wick filter having an open top end and a sidewall. A fan is mounted inside the housing for drawing air into the housing through the air inlet, then into the center of the cylindrically shaped wick filter through the open top end, then out through the sidewall of the cylindrically shaped wick filter and then out of the housing through the air outlet. A heater is also mounted inside the housing for heating the air drawn into the housing prior to passage through the cylindrically shaped wick filter.

Abstract: The invention relates to a method of introducing hydrogen into aqueous liquids without forming bubbles.In this case, the introduction of the gas takes place through a composite membrane with a non-porous coating on the liquid side. Preferred fields of use relate to the charging of hydrogen into biologically or catalytically operating processes for the removal of oxygen, nitrite and/or nitrate from water.

Abstract: A deodorizing and sterilizing dryer can readily provide deodorization, sterilization, and mold prevention for various goods, such as shoes, by supplying a deodorizing and sterilizing air stream. The deodorizing and sterilizing dryer includes, at one end, an outlet and, internally, a heater and a fan. Air that is heated by the heater is forced along an air stream path, which lies between the heater and the outlet, and contacts a columnar ceramic body that is impregnated with an acid solution and a columnar ceramic body that is impregnated with an alkaline chlorine dioxide solution. Both ceramic bodies have a plurality of lengthwise through holes, so as to supply deodorizing and sterilizing air that contains chlorine dioxide gas.

Abstract: The present invention relates to a system for delivering an air-fuel mixture to an internal combustion engine in a virtually complete gaseous form. The system is essentially comprised of a converter which dries intake air and combines the dried air with gas vapor and an air modulator for adding additional atmospheric air to the air-gas vapor mixture. The convertor contains an activated charcoal substance which enhance evaporation of the fuel, prevents "gumming" of the fuel in the convertor, and inhibits condensation of the fuel after evaporation. The air-gas vapor mixture is then fed to an internal combustion engine. In a first embodiment, the system may be installed as an add-on apparatus to an automotive engine which already uses fuel injection as fuel feeding means. In that embodiment, disabling means are installed to disable the fuel injectors. In a second embodiment, the system may be utilized as original equipment for feeding an air-fuel vapor mixture to an internal combustion engine.

Abstract: A control system for a humidifier having operative components housed within a casing. The casing includes an upper portion which is removable to provide access to the interior such that a refillable water supply bottle may be removed from, and placed into, the casing. A first control system senses depletion of the water within the water bottle and activates an indicator or disables operation of the humidifier. This first control system includes a spring biased switch which presses laterally against a side of the water bottle. When the weight of the water bottle has sufficiently decreased, due to dispensing of the water therefrom, the spring bias may overcome the weight of the bottle to tip it slightly laterally, enabling the switch. A second control system is an interlock which disables operation of the humidifier upon the casing being open. A finger element extends downward from the lid of the casing and engages against a switch mounted within the casing.

Abstract: A carburetor metering system is provided comprising a fuel valve including a valve member movable with respect to a valve seat to vary the fuel flow, the valve member and the valve seat having substantially parallel inclined surfaces and which define therebetween a passage for the flow of fuel having a width corresponding to the distance apart of the surfaces and a length. A wick for use a carburetor metering system is also provided for absorbing liquid for vaporization into an air flow, comprising a cloth of woven strands and means for suspending said cloth in the air flow. There is also provided a spark plug for use in a fuel combustion system.

Abstract: An evaporative element or cartridge especially useful in humidifiers comprises a plurality of stacked slit and expanded wicking paper layers, and means for supporting the wicking paper. The supporting means may comprise a layer of slit and expanded metal sandwiched in between the stacked wicking paper layers. The stacked wicking paper and metal layers are held together with an adhesive. Alternatively, the supporting means may comprise a rigid frame on the side edges of the stacked wicking paper layers, the frame having prongs engaging the wicking paper layers. Each layer of stacked wicking paper is staggered with respect to adjoining layers. The wicking paper has superior capillary rise of 79 to 112 mm/min.

Abstract: An air freshener device is disclosed herein in combination with a forced air source and which has a carrier with a plurality of fragrance or scented emitting ingredients or the like arranged in separate spaced-apart cells or compartments in rows and/or columns. The carrier includes breakable walls for each cell or compartment adapted to release the stored ingredient into a stream of oncoming forced air. Attachment elements secure the carrier to supporting structure so that released ingredient will enter the stream of forced air for distribution throughout a room.

Abstract: A humidifying device or vapor pressure regulator which controls subsaturation vapor pressures of liquids using a wick-like structure through which a carrier gas is blown to evaporate the liquid.

Abstract: A portable humidifier adapted to rest on a supporting surface, the humidifier comprising a base defining a water reservoir and including a bottom wall having therein an air inlet opening spaced horizontally from the reservoir, legs supporting the bottom wall above the supporting surface, a wicking element having a lower portion in fluid communication with the water reservoir, extending transversely relative to vertical, and extending above the inlet opening, and a fan for forcing air flow through the inlet opening and through the wicking element.

Abstract: A basket fitting is provided for an air filter used in the air circulation ducting of a domestic dwelling and is designed to be attached directly to the duct covering grill within a room. Various air fresheners and germicidal agents may be retained within a particular basket attached to a grill, as can a charcoal filtering agent, and in one preferred embodiment, a plurality of these baskets may be interconnected to enhance the effectiveness of the invention.

Abstract: An evaporator including a housing defining an air inlet, an air outlet, and a reservoir for a liquid supply; a blower for producing air flow in a path between the inlet and the outlet; a vessel retained by the housing above the reservoir and adapted to retain a liquid volume; a wick means retained by the vessel and comprising a source portion submerged in the liquid volume and an evaporative portion disposed in the air flow path, the wick means adapted to provide by capillary action liquid flow from the source portion to the evaporative portion; and a pump means for pumping liquid from the reservoir to the vessel so as to maintain the liquid volume therein. The output capacity of the evaporator is increased by pumping liquid from a reservoir upwardly to a supply vessel.

Abstract: A humidifier including a base defining a reservoir for retaining a liquid volume; an electrically energized humidification mechanism for inducing dispersion of liquid contained by said reservoir; an electrical supply for supplying electrical energy to the humidification mechanism; an electrical switch coupled between the supply and the humidification mechanism and having active and inactive states, the switch adapted in its active state to allow the supply of electrical energy to the humidification mechanism and adapted in its inactive state to prevent the supply of electrical energy thereto; and an operator coupled to the electrical switch and adapted for movement between active and inactive positions, the operator adapted in its active position to induce the active state of the electrical switch and in its inactive position to induce the inactive state thereof.

Abstract: A humidifier including a base defining a reservoir adapted to retain a liquid volume; the base having an open top and a horizontal cross section including a substantially rectangular portion, and a substantially circular portion intersecting and projecting into the rectangular portion; and the base including a substantially circular sidewall forming the circular portion, a substantially rectalinear endwall, a first substantially rectalinear sidewall extending between the circular sidewall and one end of the endwall, and a second substantially rectalinear sidewall extending between the circular sidewall and an opposite end of the endwall; the first sidewall, the second sidewall and the endwall forming the rectangular portion.

Abstract: A humidifier including a base defining a reservoir for retaining a liquid volume having an upper surface; a humidification unit removably mounted on the base and having an electrically energized humidifier adapted to induce dispersion of liquid retained by the reservoir, and a switch adapted in an active condition to energize the humidifier and in an inactive condition to cause deenergization thereof; and an actuator retained by the base and adapted for movement between activating and inactivating positions with respect to the switch, the actuator adapted in its activating positions to actuate the switch into its active condition and in its inactivating positions to actuate the switch into its inactive condition and wherein both given changes in the level of the upper surface and movement of the humidification unit relative to the base produce the controlling movement of the actuator.

Abstract: The cooler apparatus includes evaporative elements which are liquid absorbent plates formed of compressed fibers defining capillary channels and pores, for drawing up water within the plates and evaporating the liquid from the surface of the plates, with a plurality of absorbent plates and contacting adjacent plates, the spacing between adjacent plates being thereby determined by the thickness of the spacer members. Another currently preferred aspect of the invention a mechanism for providing the evaporative liquid to at least an upper portion of the plurality of plates, so that this portion which typically dries out can remain uniformly wetted, to thereby prolong the life and efficiency of the absorbent plates.

Abstract: A humidifier comprising a trough adapted to contain water, a mechanism for transferring water from the trough to the atmosphere, first and second containers adapted to contain water, and an arrangement for substantially emptying the first container into the trough before permitting water flow from the second container into the trough.

Abstract: A portable humidifier including a base defining a reservoir; a storage tank demountably supported by the base and adapted to retain a supply of liquid, the tank defining an orifice communicating with the reservoir; and a valve for controlling liquid flow from the tank into the reservoir through the orifice, the valve adapted to provide a liquid flow rate that maintains a given liquid level in the reservoir. Also included is a wick means comprising supply portions disposed in the reservoir below the given liquid level and evaporation portions disposed above that level, the wick means adapted to provide by capillary action a liquid flow from the supply portions to the evaporation portions; a housing defining an air flow path including the evaporation portions, the housing defining inlet openings and discharge openings; and a blower for producing air flow into the inlet openings, through the evaporation portions, and out of the discharge openings.

Abstract: Cooling apparatus comprising an air humidifying element defining a plurality of liquid pathways and a plurality of parallel air pathways intersecting and communicating with the plurality of liquid pathways and apparatus for applying a pressure gradient across the plurality of parallel air pathways and, in another embodiment, air conditioning apparatus comprising a housing defining an inlet and an outlet, apparatus located within the housing for providing passage of air between the inlet and the outlet, apparatus located within the housing, upstream of the outlet, for cooling air passed between the inlet and the outlet and apparatus located within the housing for raising the relative humidity of the air passed between the inlet and the outlet, the apparatus for raising the relative humidity comprising an air humidifying element defining a plurality of liquid pathways and a plurality of parallel air pathways intersecting and communicating with the plurality of liquid pathways.

Abstract: An evaporative cooler of the invention includes a water distribution system having a dispersion cover spaced from a water pipe having evenly spaced orifices therein for expelling water. The water impinges on a flock-coated concave surface of the dispersion cover. The flock coating retards the water flow and spreads the water flowing downwardly so that the water substantially evenly covers a drip rail at the lower edge of the flock-coated surface adjacent the evaporative medium in the cooler.

Abstract: A single assembly of an air processing structure member for air cleaning and humidifying, and an electrochemical reactor which activates a gas alarm for human safety upon detection of a predetermined dosage of gas, such as for example a fatal dose of a gas such as carbon monoxide, and which detoxifies the gas.

Abstract: The evaporation air humidifier comprises a housing consisting of an upper part (1) and a lower part (2) forming a water chamber (3). A drive unit (4) with a fan blade (5) is arranged on the upper part (1). An intermediate part (6) is located in the housing and floats on the water with its bottom surface lying on the water surface. The intermediate part (6) is guided by a slide pipe (19) and carries an evaporation mat (7), the lower end (17) of which is always submerged into the water tank (3) to the same length. The water is sucked through openings (15) into the evaporation mat (7), and humidifies the stream of air which passes therethrough in the direction of arrows (30, 31) and is discharged through the outlet openings (9).

Abstract: A device for monitoring the amount of butane that can be safely added into a fuel gas before condensation occurs includes a dry-bulb thermocouple for measuring the temperature of the gas and a wet-bulb thermocouple for measuring the temperature of a wick soaked in the butane in the gaseous environment of the fuel gas. For a continuous flowing process the difference in the two measured temperatures indicates the proportion of butane that can be added before saturation, and is used to regulate the flow rate of the butane. The wick is periodically flushed with butane, in order to prevent heavy hydrocarbon components in the butane from accumulating.

Abstract: A liquid fuel combustion apparatus for evaporating and vaporizing kerosene, gas oil or like liquid fuel by heating, admixing air with the vaporized fuel in a specified ratio and burning the resulting gaseous mixture in a combustion unit. The vaporizer for the liquid fuel comprises a liquid fuel drawing-up member (15) made of a heat-resistant porous body (8) or heat-resistant inorganic fiber fabric (9) for drawing up the liquid fuel, and a heat generating member (6) including coating layers (22, 23) of heat-resistant metal, heat-resistant alloy or heat-resistant metallic oxide for giving heat to the drawing-up member. To prevent formation of tar-like substances, a catalyst is preferably deposited on the surface of the drawing-up member and/or on the surface of the heat generating member. Further preferably, the outer periphery of the heat generating member (6) is in contact with the drawing-up member (5).

Abstract: A device is disclosed which humidifies the incoming air to an internal combustion engine or an air compressor. The device employs a moistened wick which transfers water from a water reservoir to the incoming air. The humidified air reduces the carbon build-up in an engine and increases the efficiency thereof. A humidistat is provided for automatic adjustment of humidity and the heating of incoming air prior to humidification.

Abstract: A liquid fuel burner for burning liquid fuel in the form of a gaseous mixture with air. The liquid fuel burner has a porous member provided at least with a fuel receiving section for receiving the liquid fuel supplied to the burner and a fuel evaporation section from which the liquid fuel is evaporated. An air supplying device is provided for forcibly supplying air to the fuel evaporation section. The rate of air supply is varied by means of a damper or like means. Heating means are provided for maintaining the fuel evaporation section at a substantially constant temperature. The rate of burning is varied while maintaining the air-fuel ratio of the mixture substantially constant, because the rate of evaporation of the fuel is almost in proportion to the rate of supply of air to the fuel evaporation section. The heating means facilitates the evaporation of the fuel and permits a rapid rise and stabilization of burning after ignition.

Abstract: A gas purifying filter comprises a housing provided with gas inlet and outlet stubs arranged on side walls thereof. Rigidly secured inside the housing are stationary filtering elements fabricated from fibrous chemisorbing material in the form of rectangular plates disposed vertically and arranged essentially in parallel with one another. Opposite side edges of the rectangular plates are connected therebetween in pairs by partitions so as to afford an opening for the passage of gas between the plates facing the partition connecting the side edges of a pair of plates. Mounted above the rectangular plates are liquid compartments, the liquid serving to regenerate the filtering elements and being in contact with the upper section of the plates.

Abstract: An air filter comprising, in addition to a porous paper annular filter, a filter in the form of a canopy disposed above the air outlet orifice. This filter comprises a trellis forming a support for absorbent material meshes extending into a water tank. The meshes become wet by absorbing the water from the tank by capilliary action and ensure, by forced convection, a humidification of the air aspirated by the engine.

Abstract: There is disclosed a method and a device for conditioning of heated breathing air for divers.Breathing air supplied from compressed air containers through pressure reducing valves is very cold and dry. Heating of breathing air makes the air even drier and, due to the low specific heat of air it cannot supply the diver with a substantial amount of heat.According to the invention the air is heated to above the body temperature of the diver and humidified to close to saturation. Upon inhalation the air temperature is lowered whereby some of the vapor will condense and give off its heat of evaporation. The device according to the invention contains air passages wherein the air is heated, humidified by means of wicks or a tube provided with a nozzle arranged in a Venturi portion connected to a water tank, and an air temperature regulating device.

Abstract: The specification describes an improved humidifier pad and a method of making the pad. The pad comprises a fibrous layer provided with means which substantially eliminate the flow of water picked up by the fibrous layer along the length of the pad so that when the pad is in use on a rotating drum, the water that is picked up is held in the pad for vaporization rather than flowing back downwardly to the pickup point.

Abstract: An evaporative cooler pad consisting of loosely packed, randomly oriented fibers of balsam poplar (Populus tacamahaca) also known as balm of Gilead, which are generally ribbon-shaped and which are coated with a thin layer of Portland cement that is water-absorbent and has a granular surface. Balsam poplar has the unique property of forming a firm, adherent bond to the Portland cement, and the cement-coated ribbons of wood absorb and diffuse moisture over their entire surface in the manner of a blotter, so that they become uniformly damp without being excessively wet. The damp, Portland-cement coated fibers present a large surface area of moisture to the air, thereby facilitating rapid evaporation for good cooling effect, without allowing the air to pick up and carry along any fine droplets of water, which would make it wet. The damp, cement-coated fibers also cool without adding appreciably to the humidity in the air.

Abstract: A room humidifier unit operable in conjunction with the natural circulation of the room's air, comprising a portable, self-contained and angularly adjustable evaporator for positioning in the flow path of the room's natural air circulating flow to obtain maximum evaporation, and a system wherein two or more of the units are used and positioned in spaced flow path portions of the circulating room air.

Abstract: Apparatus is provided for introducing a scent into a forced air temperature changing system of the type having a blower and an air filter positioned upstream of the blower. The apparatus comprises a container for retaining a fluid having the desired scent. A spray device is positioned adjacent the filter and is connected to the system so that the scent containing fluid exiting through the spray device is sprayed onto the filter. A conduit connects the container with the spray device to provide a passage for the flow of the fluid from the container to the spray device. Control means serially connected in the conduit between the container and the spray device controls the flow of the fluid to the spray device. Hence, by operating the control means, the fluid is selectively sprayed on to the filter. The air flowing through the filter picks up the scent and brings the scent to the desired area.

Abstract: This invention is concerned with carburetion of gasoline for the purpose of reducing the consumption of gasoline and preventing pollution. The procedure for carrying out this function is by evaporation and osmosis. In the lower chamber of the carburetor where the liquid gasoline is located are immersed a plurality of special tubes. The tubes have in their lower portion on the inside surface an absorbant material, and wicks extending therefrom. In the upper portion of the tubes where the wicks are located, there are a plurality of lateral openings. The gasoline is located in a lower chamber where the tubes are immersed. The upper portion of the tubes are not immersed in the gasoline. When the motor is turned on, the intake valve opens and air is drawn through the air filter in the carburetor and down into the tubes. The air contacts the wicks in the tubes, vapor is formed, and passes through the openings thereof into a chamber which has a protective material located therein.

Abstract: A respiratory air humidifier comprises a plurality of hollow tubules having walls of a foil material which is impermeable to water but is permeable to steam vapor. The tubules have inside diameters of less than 300 microns and are about 15 microns thick. Breathing gas to be humidified is directed over one side of the foil for example through the tubules and the water is directed over the opposite side for example the exterior of the tubules.

Abstract: A volatile anesthetic vaporizing apparatus including a concentration control flow valve means actuated by a substantially linear rotary dial for dividing an inflowing gas stream into two separate streams, one stream being passed over liquid anesthetic to pick up a vapor and the other stream flowing through a bypass duct. The gas stream flowing over liquid anesthetic flows through a temperature responsive valve means, the latter being actuated by a temperature sensitive bimetallic strip which is in direct contact with the vapor saturated air stream which is relatively cool due to the vaporization of the liquid anesthetic. The valve means so situated in the vapor stream essentially does not include any moving parts. Such valve means is formed by the spaced mounting of a planar valve element on a planar surface having a vapor opening therein or an inlet passage.

Abstract: An apparatus supplies to a selected region air laden with a vapor which may be a scent or a masking odor. The device may be controlled to hold the level of vapor in the selected region at a desired value. Provision is made for prevention of the loss of the compound to be volatilized when the device is not in use as well as when in use.

Abstract: A volatile anesthetic vaporizing apparatus including a concentration control flow valve means actuated by a substantially linear rotary dial for dividing an inflowing gas stream into two separate streams, one stream being passed over liquid anesthetic to pick up a vapor and the other stream flowing through a bypass duct. The gas stream flowing over liquid anesthetic flows through a temperature responsive valve means, the latter being actuated by a temperature sensitive bimetallic strip which is in direct contact with the vapor saturated air stream which is relatively cool due to the vaporization of the liquid anesthetic. The valve means so situated in the vapor stream essentially does not include any moving parts. Such valve means is formed by the spaced mounting of a planar valve element on a planar surface having vapor opening therein or an inlet passage.

Abstract: Method and apparatus for detecting minute traces of a gas in the PPB range (.mu.g.m.sup.-3) by pumping a gas mixture through a non-specific gas detector measuring cell and displaying and/or recording the signals generated by the measuring cell. For zero point control, the looked-for constituent in the gas mixture is eliminated therefrom by passing the gas mixture through an activated charcoal filter in which the looked-for constituent is retained, and pumping the cleaned gas mixture through the gas detector. For calibration, a liquid of a type corresponding to the looked-for constituent is evaporated in an evaporator, and a gas mixture of a predetermined concentration is pumped through the measuring cell. For quick calibration, the liquid is continuously evaporated in the evaporator, and during measuring or zero controls this evaporated gas is vented to the atmosphere. Flow rates are adjusted by means of capillary systems.

Abstract: An improved liquid film impingement scrubber is provided wherein particulates suspended in a gas are removed by jetting the particle-containing gas onto a relatively small thin liquid layer impingement target surface. The impingement target is in the form of a porous material which allows a suitable contacting liquid from a pressurized chamber to exude therethrough to form a thin liquid film target surface. The gas-supported particles collected by impingement of the gas on the target are continuously removed and flushed from the system by the liquid flow through each of a number of pores in the target.

Abstract: Apparatus for evaporating liquids, including means to form the liquid into a thin film on a heatable wall, the means comprising a porous layer having a first portion which covers the wall concerned and at the top of the wall passes via a bend into a second portion which is spaced from the first portion and is surrounded by a liquid-receptacle.

Abstract: A humidifier including a base defining a reservoir for retaining a liquid volume having an upper surface; a humidification unit removably mounted on the base and having an electrically energized humidifier adapted to induce dispersion of liquid retained by the reservoir, and a switch adapted in an active condition to energize the humidifier and in an inactive condition to cause deenergization thereof; and an actuator retained by the base and adapted for movement between activating and inactivating positions with respect to the switch, the actuator adapted in its activating positions to actuate the switch into its active condition and in its inactivating positions to actuate the switch into its inactive condition and wherein both given changes in the level of the upper surface and movement of the humidification unit relative to the base produce the controlling movement of the .[.actuator.]. .Iadd.switch.Iaddend..