Abstract: A humidifier includes a housing, a fan assembly, a wick assembly, a first humidity sensor, a second humidity sensor, and a controller. The housing has an air inlet, an air outlet, and a reservoir for holding water. The fan assembly creates an airflow through the housing from the inlet to the outlet. The wick assembly is in fluid communication with the water in the reservoir and extends into the airflow within the housing for adding moisture to the airflow. The first humidity sensor measures an ambient air relative humidity and produces a first signal corresponding to the ambient air relative humidity. The second humidity sensor measures an outlet air humidity and produces a second signal corresponding to the outlet air humidity. The controller is in electrical communication with the first and second humidity sensors. The controller receives the first and second signals and performs calculations to produce an output signal.

Abstract: A fibrous element is described. The fibrous element includes a container member and an anti-microbial agent, wherein the anti-microbial agent is disposed within the container member. The container member can include structures such as an elongated fiber having multiple lobes with a longitudinally extending internal cavity including an opening from the internal cavity to the outer fiber formed between adjacent lobes, an elongated fiber having an internal longitudinally extending cavity having a longitudinally extending opening, and a particulate. The anti-microbial agent is capable of diffusing out of the container member and throughout the fibrous element in response to elevated relative humidity levels in order to contact and kill a microbial population.

Abstract: An evaporative humidifier including a base removably supporting a water tray for holding a quantity of water. A blower assembly and a water tank are removably supported by the base above the water tray. The blower assembly includes a housing and a fan disposed intermediate a pair of air inlets and an air exhaust outlet. A cylindrically shaped wick filter is supported by the water tray and extends upwardly into the housing. The wick filter includes a cylindrical side wall and opposing open upper and lower ends. The fan is driven by a motor mounted inside the housing for drawing air into the housing through the air inlets, through the cylindrical side walls of the wick filter, and then through the open upper end of the wick filter and out of the housing through the air exhaust outlet.

Abstract: The present invention relates to an air humidifier and to a method for humidifying air, the use of special devices enabling air to be humidified with sterile water. A large contact area between water and air is combined with low losses of flow pressure. A membrane contactor having at least one tube membrane embedded in a hydrophilic, porous body comprises the air humidifier. The present invention enables use of coarse filters to ensure that the water is dispersed over a large surface area.

Abstract: A sensor assembly for determining a condition of a wick in an evaporative humidifier includes one or more temperature sensors for detecting temperatures at measurement locations along the wick, and circuitry in communication with the one or more sensors for determining a temperature differential between adjacent measurement locations. The circuitry generates at least one signal indicative of the condition of the wick when the temperature differential is above a predetermined value.

Abstract: An adaptable evaporative element for a humidifier or the like is described. It includes an evaporative element having a fold, such that the size of said evaporative element is adaptable by varying said evaporative element between a folded and an unfolded configuration. Alternate embodiments use a hinge over a portion of the thickness of the evaporative element, separable layers or an attached cutting guide as additional means of adapting the evaporative element.

Abstract: An evaporative humidifier including a base removably supporting a water tray for holding a quantity of water. A blower assembly and a water tank are removably supported by the base above the water tray. The blower assembly includes a housing and a fan disposed intermediate a pair of air inlets and an air exhaust outlet. A cylindrically shaped wick filter is supported by the water tray and extends upwardly into the housing. The wick filter includes a cylindrical side wall and opposing open upper and lower ends. The fan is driven by a motor mounted inside the housing for drawing air into the housing through the air inlets, through the cylindrical side walls of the wick filter, and then through the open upper end of the wick filter and out of the housing through the air exhaust outlet.

Abstract: The present invention is directed to a device for releasing a volatile substance. The device includes a housing having an interior region, a volatile substance contained within the interior region, and the ability to controllably release the volatile substance from the housing. Such controllable release can be accomplished by the housing being substantially permeable to ambient air, yet substantially impermeable to the volatile substance contained within the interior region of the housing. Additionally, the invention contemplates the use of one or more porous plugs for diffusing the volatile substance therethrough and eventually into atmosphere in a vapor form. To assist such diffusion, the invention likewise contemplates the use of an electrochemical gas generating cell, a heating element and/or other features which allow air to controllably enter into the interior region of the housing.

Abstract: An unique filtration device (10) which removes acidic contaminants such as H2S and SO2 from a fluid stream through the use of partially hollow wicking fibers (20) impregnated with an effective amount of alkaline-generating chemical compounds, preferably also containing an effective amount of a compound with elements from Group II and Group 6-12 in +2 oxidation state, and most preferably also containing an effective amount of solid fine particles (18). A nonwoven filter mat (12) is formed from a plurality of the elongated fibers (20) each having at least one internal channel (22) connected to the fiber outer surface via an elongated opening (24). The fluid stream containing the acidic gas phase contaminants is directed over the nonwoven filter mat (12) whereby said plurality of small solid particles (18) and reservoir of active chemical reagents disposed in the open channels (22) communicate through the elongated opening (24) with the fluid flow path and absorbs the acidic gas phase contaminants.

Abstract: A housing is permanently connected to a water supply of a building and includes an evaporative water panel allowing water to flow downwardly and wick upwardly. A circulating device is provided for directing air from the building through the water panel. A reservoir is positioned in the housing for supporting the water panel and holding excess water deposited from the water panel. A water distributor is supplied for moving water from the water supply to a top of the water panel. A water control arrangement is responsive to the water level therein for automatically controlling the flow of water to the water panel to provide a desired humidity level in the building.

Abstract: A humidifier includes a modular performance indicator that is removably attached to a grill of the humidifier air outlet. The performance indicator generally includes at least one humidity sensing means and a display. The humidity sensing means is positioned within the airflow for measuring the exit-relative humidity of the airflow and the display is coupled to the humidity sensing means for indicating when the humidifier wick requires replacement and/or the humidifier water supply requires refilling based upon the measured exit-relative humidity reaching a predetermined value.

Abstract: A diffuser 1 for diffusing essential oil into a room using steam comprising a housing 2, a liquid container 6 in the housing, a heater 11 for heating the liquids in the container 6 to vaporize it, and a support 5 for holding volatilizable-substance matter 20 above the liquid container. For convenience, the volatilizable-substance matter 20 is in the form of an aroma packet, having upper 22 and lower 23 cellulose tissue webs, holding between them some dried plant material, for example lavender blooms. The webs are sealed together at their edges by a rim, which is sized to fit the support of the diffuser.

Abstract: A gas-enriched liquid delivered at a site of interest that is substantially bubble free after delivery into a lower pressure liquid or gas environment. The delivered gas-enriched liquid is produced by a process comprising the steps of: a) preparing a mixture of gas and liquid; b) compressing the mixture to a pressure such that the gas completely dissolves in the liquid to form a gas-enriched liquid; c) enclosing the gas-enriched liquid within a confined space while retaining substantially the same pressure. The confined space has at least one dimension less than about 0.2 mm, and has at least one opening to a liquid or gas environment site of interest having a lower pressure than that of the pressure of the confined space; and d) delivering the gas-enriched liquid from the confined space out through the at least one exit opening to the lower pressure environment without formation of bubbles.

Abstract: An apparatus for the remote or local delivery of stored or real-time aroma sensory information to an end user of a multimedia device. The present invention includes an aroma converter for encoding aroma information into electrical signals, a delivery system for delivering the electrical signals, and a retrieval system for receiving and processing the electrical signals to control the aroma or combination of aromas emitted by one or more aroma release chambers.

Abstract: A humidifier with a stacked reservoir system includes a first wettable wick adapted to humidify an air stream and a first reservoir for holding water. The first reservoir is located in a position adapted to wet the first wick by capillary action and shaped to accommodate sufficient air flow through the humidifier. The humidifier includes a second wettable wick adapted to humidify the air stream and a second reservoir for holding water. The second reservoir is located in a position adapted to wet the second wick by capillary action and adapted to capture water overflowing from the first reservoir.

Abstract: A humidifier is disclosed. The humidifier includes a housing, in which a moisture source resides, and a fan assembly connected to the housing for moving dry air into the housing, through the water source, wherefrom the dry air picks up moisture, and finally out of the humidifier. The fan assembly is detachably connected to the housing and has a stand so that the fan assembly can be in an upright position when detached from the humidifier housing and function as a stand-alone fan. The humidifier housing has multiple openings for accommodating the power cord of the fan assembly. In operation, the fan assembly is attached to the humidifier housing to move air into the humidifier housing to pick up moisture from the source of water, and subsequently out of the humidifier housing to circulate humidified air; the fan assembly is then detached from the humidifier housing and operated to circulate unhumidified air.

Abstract: A humidifier includes a housing, a wick, a fan, and a wick change indicator. The housing has a upper and bottom portions. The bottom portion is formed with an air inlet and a reservoir. The reservoir holds water while supporting the wick. The wick is seated in the reservoir so that it is partially submerged in the water. The upper portion is formed with an air outlet with the fan mounted therein generally above the top of the wick. The wick change indicator generally includes at least one hygrometer and a display. At least one hygrometer is positioned within the airflow for measuring the exit-relative humidity of the airflow. The display is coupled to the hygrometer for indicating when the wick requires replacement based upon the measured exit-relative humidity reaching a predetermined value.

Abstract: A portable humidifier including a housing defining an air inlet, an air outlet, and an air flow path therebetween; a retainer disposed in the housing; and an air permeable, liquid absorbent cartridge element replaceably retained by the retainer and having a handle to facilitate removal from the housing. Also included is a blower disposed in the housing and activatable to produce air flow through the air flow path and cartridge element and a liquid supply for supplying liquid to the cartridge element.

Abstract: A humidifier 21 for use with a fuel cell 1, comprising: a plurality of combined water permeable membranes or water permeable devices 21, each of the water permeable membrane or water permeable device generating humidified gas by flowing therein different gases with different moisture contents and by moisture exchanging between the different gases so that one dry gas with smaller moisture content is humidified with the other moist gas with larger moisture content; and flowing passage switching means Va for optionally switching flowing passages Ca of said dry gas. The flowing passage switching means Va switches the flowing passage Ca in accordance with a required amount of said humidified gas so as to selectively use particular water permeable membranes or a particular water permeable device 21 from among the plurality of water permeable membranes or water permeable devices 21.

Abstract: The invention relates to an apparatus and process for the vaporization of liquid precursors and deposition of a film on a suitable substrate. Particularly contemplated is an apparatus and process for the deposition of a metal-oxide film, such as a barium, strontium, titanium oxide (BST) film, on a silicon wafer to make integrated circuit capacitors useful in high capacity dynamic memory modules.

Abstract: A humidifier includes a housing, a wick, a fan, and a wick change indicator. The housing has a upper and bottom portions. The bottom portion is formed with an air inlet and a reservoir. The reservoir holds water while supporting the wick. The wick is seated in the reservoir so that it is partially submerged in the water. The upper portion is formed with an air outlet with the fan mounted therein generally above the top of the wick. The wick change indicator generally includes at least one hygrometer and a display. At least one hygrometer is positioned within the airflow for measuring the exit-relative humidity of the airflow.

Abstract: A humidifier/air purifier including a housing defining a water reservoir, an air inlet opening and an air outlet opening; a generally V-shaped wicking element in fluid communication with the reservoir; an air filter with a generally V-shaped air filter medium and a frame supporting the air filter medium mounted above the wicking element; and a blower for causing air flow through the air inlet opening, through the wicking element, through the air filter, and through the air outlet opening.

Abstract: A humidifier includes a housing, a wick, a fan, and a wick change indicator. The housing has a upper and bottom portions. The bottom portion is formed with an air inlet and a reservoir. The reservoir holds water while supporting the wick. The wick is seated in the reservoir so that it is partially submerged in the water. The upper portion is formed with an air outlet with the fan mounted therein generally above the top of the wick. The wick change indicator generally includes at least one hygrometer and a display. At least one hygrometer is positioned within the airflow for measuring the exit-relative humidity of the airflow. The display is coupled to the hygrometer for indicating when the wick requires replacement based upon the measured exit-relative humidity reaching a predetermined value.

Abstract: A humidifier with a plurality of wettable wicks is disclosed. According to one aspect of the present invention, the humidifier includes a first wettable wick adapted to humidify an air stream and a first tray for holding water. The first tray is located in a position adapted to wet the first wick by capillary action. The humidifier includes a second wettable wick adapted to humidify the air stream and a second tray for holding water. The second tray is located in a position adapted to wet the second wick by capillary action and adapted to receive water from the first tray. A channel connects the two trays and transfers water from the first tray to the second tray when the water level in the first tray reaches a predetermined level. The use of the channel instead of a tube reduces water noise and the chances for vapor lock.

Abstract: A fluid transfer system includes a permeable fluid carrier, a constant temperature source of a first fluid, and a constant pressure source of a second fluid. The fluid carrier has a length, an inlet end, and an outlet end. The constant pressure source connects to the inlet end and communicates the second fluid into the fluid carrier, and the constant temperature source surrounds a least of portion of the length. A mixture of the first fluid and the second fluid exits via the outlet end A method of making a mixture of two fluids is also disclosed.

Abstract: A humidifier bottle assembly and a method of dispensing water from humidifier bottles are provided. The humidifier bottle assembly includes a first and a second humidifier bottle adapted to hold water and a humidifier bottle receptacle adapted to receive the first and second bottles. In one embodiment, the receptacle includes a device adapted to determine which of the first and second humidifier bottles contains more water. The device is operable to dispense water from the humidifier bottle containing more water. In an exemplary embodiment, the device comprises a pivot mechanism configured to raise one of the first and second bottles and lower the other of the first and second bottles within the receptacle, so as to activate a dispensing plunger and stopper, thus dispensing water from the bottle containing more water. In another embodiment, each bottle includes a dispensing mechanism adapted to dispense water from the bottle into a reservoir.

Abstract: An air flow activated humidifier for use in a ventilation system comprising a water evaporating means, displacing means engageable by the air flow of said ventilation system for displacing said water evaporating means, and activating means operably associated with said displacing means for activating said humidifier when said water evaporating means is displaced. A control system for a flow-through humidifier comprising a pivoting means, returning means, switching means and water valve. A method for humidifying circulated air using an air flow activated humidifier.

Abstract: A small flow of a water with a high carbon dioxide content (normally a carbon-dioxide-saturated water) is produced using hollow-fiber membranes, and is uniformly mixed with a large flow of untreated water with constant proportions. Since the hollow-fiber membrane module has a reserve capacity for adding carbon dioxide to the water, the resistivity of the mixed water is maintained at a constant level by maintaining constant proportions of the small and large flows, even if the total flow rate fluctuates due to fluctuations in the rate of water used in a subsequent process. Accordingly, no automated control device is particularly necessary in order to maintain the resistivity at a constant level. Therefore, a compact and simple apparatus can be produced which can operate at a low cost.

Abstract: A portable humidifier including a housing defining an air inlet, an air outlet, and an air flow path therebetween; a retainer disposed in the housing and defining key structure; and an air permeable, liquid absorbent cartridge element replaceably retained by the retainer and defining keyhole structure shaped and arranged to receive the key structure and at least one portion of the cartridge element being disposed in the air flow path. Also included is a blower disposed in the housing and activatable to produce air flow through the air flow path and cartridge element and a liquid supply for supplying liquid to the portion of the cartridge element.

Abstract: A humidifier pad with multiple layers of slit and expanded paper laminated together. At least one, and in some preferred embodiments, up to half of the paper layers comprise substantially nonwicking paper and the remaining layers comprise highly absorbent wicking paper. Wick type humidifier pads are particularly useful in humidifiers wherein the lower portion of the pad is submerged in a reservoir of water. The upper portion of the pad, exposed to a flow of air to be humidified, is supplied with water due to the high rate of capillary rise featured by the wicking paper layers. Including non-wicking layers wetted by the wicking layers provide an output capacity comparable to conventionally constructed pads which include all wicking paper layers and an attendant saving of the cost of materials.

Abstract: A fill-in-place humidifier in which the tank can be rotated 180.degree. between a filling position and an operating position. In the filling position a cap can be removed from the tank for filling and can be replaced when filling is complete, the cap bearing a valve which automatically opens when the tank is rotated into its operative position.

Abstract: A gas-pervious, liquid-gas contact pad comprises a reticulate body of water-permeable or wettable material having a large area of surfaces exposed for humidification purposes or the like. A plurality of slit and expanded sheets of wicking paper are connected in superposed and alternating relationship with a plurality of slit and expanded sheets of water-absorbent or wettable kraft paper to form a self-supporting, laminated evaporative element.

Abstract: The present invention provides a gas humidifier for the humidification of reactant gases supplied to electrochemical devices such as electrolyzers and fuel cells. The humidifier provides a water permeable member, such as a polymer membrane in the form of a tube, sheet, tubulated sheet and the like, that can be saturated with water to allow evaporation of water into a gas stream passing over a water permeable member. The humidifier is compact and lightweight, yet provides efficient humidification of gases at flow rates as low as about 0.1 grams per minute of water.

Abstract: In a first aspect of the present invention, a humidifier is provided. The humidifier includes a first wettable wick adapted to humidify an air stream and a first tray for holding water. The first tray is located in a position adapted to wet the first wick by capillary action. The humidifier includes a second wettable wick adapted to humidify the air stream and a second tray for holding water. The second tray is located in a position adapted to wet the second wick by capillary action and adapted to receive water from the first tray. In a second aspect of the present invention, a method for humidifying air is provided. The steps of the method include pumping water from a reservoir to a highest water tray, sending water from the highest water tray to a lower water tray, and wetting a first wick through capillary action. The first wick has a portion in contact with water in the highest water tray. The steps of the method include wetting a second wick through capillary action.

Abstract: A unique filtration device (10) which continuously removes gas phase contaminants from an air stream through the use of partially hollow wicking fibers (20) impregnated with a fine solid carbon powder (18) or zeolites and formed into a fiber filter (12) with a selected chemisorptive liquid applied to one side of the fiber filter (12) and large carbon particles (19) applied to the other side of the fiber filter (12). The air stream to be cleaned is directed through filter element (12) which can capture the gas phase contaminants. The wicking fibers (20) include internal longitudinal cavities (22) filled with the fine carbon powder (18) and each having a relatively small longitudinal extending opening (24).

Abstract: A wick assembly for use in a humidifier including a housing defining an air inlet, an air outlet, and a reservoir adapted to contain water, a fan for creating an air flow path between the inlet and the outlet, and a float assembly for stopping the operation of the fan when an insufficient amount of water is present within the reservoir, the float assembly including a float rod, the wick assembly having a lower portion locatable within the reservoir and an upper portion locatable within the air flow path so that the wick assembly conducts water from the reservoir to the air flow path, the wick assembly including a frame, an absorbent wick supported by the frame, and a retainer mounted on the frame for movement between an extended position wherein the retainer can support the float rod, and a retracted position facilitating packaging of the wick assembly.

Abstract: A room humidifying assembly (20) is provided which is easily and quickly installed, is simple to operate, and is a cost effective means for maintaining a comfortable humidity level in a room. The room humidifying assembly (20) preferably includes a body (22), adapted for positioning within a ventilation duct (24) adjacent a duct outlet (26), and a wick (32) having a first section (34) and a second section (36). The body (22) includes a reservoir (28) adapted to hold a supply of water, and the second section (36) of the wick (32) is disposed within the reservoir (28) in contact with the water therein. The first section (34) of the wick (32) is supported across at least a portion of the duct (24) by an apertured frame (30) secured to the body (22) to permit the passage of ventilating air through the first section (34). The wick (32) is configured for delivery of water from the second section (36) to the first section (34) by capillary attraction.

Abstract: A unique odor filtration device (10) which continuously removes odor causing gas phase contaminants from an air stream through the use of partially hollow wicking fibers (20) impregnated with a selected liquid (18) which can capture odor causing gas phase contaminants. The odor removing liquid (18) is a chemical composition including sodium permanganate in combination with either sodium carbonate or sodium phosphate. The odor absorbing liquid (18) can include specialized additives such as transition metal salts and other agents such as sodium iodide for additional and broader odor removal coverage. The wicking fibers (20) are formed into a filter element (12) which extends from a chamber (16) through which the air stream to be cleaned is directed into a stripping chamber (19). The odor causing contaminants are conveyed to from chamber (16) to chamber (19) by a concentration factor induced molecular migration.

Abstract: A liquid delivery system for delivery of an initially liquid reagent in vaporized form to a chemical vapor deposition reactor arranged in vapor-receiving relationship to the liquid delivery system.

Abstract: A new and improved humidifier wick and its method of manufacture are disclosed. The humidifier wick is made from a cellulose foam material that is compressed to a predetermined thickness in a dry condition. A series of air flow openings are formed in such material. As a result, the wick is capable of being expanded to a substantially increased thickness when wet in order to allow air to be drawn through the air flow openings for conveying moisturized air by a power driven fan blade from a humidifier into the atmosphere of a room. The air-flow openings are pre-configured in the humidifier wick, when in its dry condition, in order to allow air to pass into and beyond the air flow openings of the wick when it is wet and expanded. The wick may be used by itself or together with a number of similarly constructed wick elements.

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 with a permeable support is seated in the reservoir and extends up into the housing. The cylindrically shaped wick with permeable support filter has an open top end and a sidewall. A color change indicator strip is provided on the inner portion of the sidewall. The color change indicator strip provides a signal when the filter requires changing due to the extent of use and immersion of the filter in water. 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 with a permeable support and then out of the housing through the air outlet.

Abstract: An evaporative humidifier includes a top cover and a water reservoir tank removably mounted on top of a base platform. Several of the components of the humidifier contain a biocide for resisting the growth of bacteria and fungi on all surfaces of the components. The humidifier includes, in one embodiment, a pump assembly for moving water from the base platform to the top of an evaporator panel disposed in an air stream drawn through the humidifier. Alternatively, a paper wick is partially submerged in the pool of water in the base platform for drawing water up into the air stream by capillary action.

Abstract: An evaporative cooler pad includes a high loft body of synthetic staple fibers having a plurality of channels extending along the longitudinal axis thereof. The open nature of the pad allows air to flow freely through the pad, while the longitudinal channels serve to wick water contacting the pad throughout the pad, thus optimizing the cooling efficiency of the pad.

Abstract: A humidifier is disclosed having operation, speed, and humidity control for the distribution of humidified air. The humidifier contains a multiplicity of air moving devices, e.g., fans, to enable large quantities of humidified air to be distributed in an area or conversely, only a small amount of humidified air to be distributed in the area in order to maintain the humidity level already achieved. The humidifier requires only the power necessary to achieve or maintain the level desired without excess use of power. At least one operating control is used to selectively operate one or all of the air moving devices, and at least one speed control is also preferably used with the operating control for selectively increasing or decreasing the speed of one or all of the air moving devices. Along with the operating control and speed control, a humidity control may pre-select humidity between a predetermined minimum and maximum.

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 vaporization 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 suitably 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: A unique filtration method and device (10) which continuously removes several gas phase contaminants from an air stream through the use of partially hollow wicking fibers (20) impregnated with a selected liquid which can capture the gas phase contaminants. The wicking fibers (20) are generally disposed parallel and are formed into a filter element (12) which extends from the air stream to be cleaned into another air stream which can strip and carry away the unwanted gas phase contaminants. The gas phase contaminants are conveyed to the stripping air stream by a concentration factor induced molecular migration. The air stream to be cleaned is directed through a compartment (16) across which the filter element (12) extends so the complete air flow is through filter element (12). Filter element (12) also extends into another compartment (18) through which the stripping air stream flows.

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 combination evaporative/warm mist humidifier comprises a base having an evaporative cavity and a warm mist cavity disposed therein for retaining a liquid. A lower supply portion of a wick element is disposed within the evaporative cavity and an upper evaporative portion is disposed thereabove. The wick element is adapted to provide liquid flow by capillary action from the lower supply portion to the upper evaporative portion. A housing having an evaporative chamber and a warm mist chamber is removably mounted on the base. The evaporative chamber is disposed above the evaporative cavity and is adapted to receive the upper evaporative portion of the wick element. A selectively operable blower assembly is provided in the evaporative chamber for inducing air flow through the upper evaporative portion of the wick element to evaporate liquid content therein and to discharge the evaporated liquid content from the evaporative chamber into the surrounding environment.

Abstract: A portable humidifier assembly adapted for use in association with a forced air heat vent, the apparatus comprising: an inner frame comprising a rear crossbar, a front crossbar and a plurality of semicircular ribs affixed therebetween, the front crossbar of the inner frame including a coupling device, an outer frame including a rear crossbar, a front crossbar and a plurality of semicircular ribs affixed therebetween, the rear crossbar of the outer frame being hingedly coupled to the rear crossbar of the inner frame, the front crossbar of the outer frame including a coupling device; and a sponge adapted to retain water, in an operative orientation the sponge being soaked with water and placed between the ribs of the inner and outer frames, the sponge being locked in placed by hingedly closing the outer frame upon the inner frame and coupling the front cross bars of the respective frames together.

Abstract: An air treatment system includes a housing having a from cylindrical chamber and a rear rectangular chamber, the front and rear chambers being separated by an internal wall. The front chamber is provided with a series of outlet vents, the rear chamber is provided with a series of inlet vents, and the internal wall is provided with a series of interchamber vents. A pair of electrically-powered cylindrical fan blades are disposed within the front chamber and are used to draw air into the rear chamber through the inlet vents, to move the air from the rear chamber to the front chamber through the interchamber vents and to exhaust the air from the front chamber through the outlet vents. A plurality of ionizer needles are also disposed within the front chamber. The rear chamber is shaped to include a generally rectangular reservoir. The air treatment system also includes a water tank removably mounted within the rear chamber for use in supplying water to the reservoir.