Abstract: A high output smoke generator suitable for use as a portable apparatus emys a thin-walled metal conduit as a resistance heater coil which also doubles as a thermal sensor. A balance bridge controller using the coil as one leg in the bridge network, is electrically coupled to provide current to the resistance heater coil for maintaining the coil at a predetermined temperature. A thermocouple used for calibration is electrically isolated from the coil by a beryllium oxide disk. Also, disclosed are a fluid reservoir and pump to provide smoke generating fluid to the coil after an adjustable time delay from startup, and a timer to shutdown operation after a preselected period.

Abstract: A heating device useful in ice fishing includes a housing having a retractable heater core which carries a self-contained heating substance and a reservoir filled with an evaporable liquid. The heating substance is cooperable with the reservoir to provide vapor and liquid droplets to prevent freezing of water within a hole cut in the ice and is further operable to furnish convectional heating of objects placed at the top of the housing.

Abstract: An insecticide dispenser capable of setting off a charge of insecticide to fumigate a room and then automatically shutting itself off before the completion of the dispensing of the charge of the insecticide, whereby the dispenser can be safely left unattended during the fumigation of a room. The dispenser includes a container for the insecticide and a fusible member that will break during the volatilization of the insecticide thereby to break the electrical circuit and turn off the power supply.

Abstract: An electric fogger includes a housing having a heat source, a timer and a disposable canister containing a fog-producing material such as an insecticide, deodorant, perfume, disinfectant or air freshener. The housing includes a top member and a base member capable of receiving and replaceably holding the disposable canister. The housing contains the heat source such as a hot plate, for heating the insecticide or the like in the canister; a printed circuit board including an electrical switch for activating the heat source and a timer which automatically turns the heat source off after a predetermined period of time; and a pivoting cam adapted to engage the electricl switch on the printed circuit board to allow electricity to flow to the heat source when the pivoting cam engages a lug on the canister upon insertion of the canister into the housing. The fogger is of simple construction and is easy and safe in operation.

Abstract: A portable apparatus for generating vapor for a facial sauna includes a housing enclosing a vented liquid storage tank having an inlet for receiving liquid to be vaporized and an outlet. An electrically heated vapor generator is located in the housing and receives liquid from the tank outlet through an electrically operated diaphragm pump for producing vapor which is discharged from an vapor outlet in the housing. The housing includes an elastic wall portion immediately adjacent and confronting the diaphragm operating armature of the pump. The elastic housing portion is manually displaceable inwardly of the housing for displacement of the pump diaphragm by the armature to prime the pump. An adjustable control is provided for regulating the pumping rate of the pump. The vapor generator is provided with anti-sputter baffles to prevent liquid droplets from being discharged with the vapor.

Abstract: The electrical device for evaporating of active substances, preferably insecticides, contained in carrier tablets, has a housing (10) provided with a magazine (22,24,32) for receiving a variety of carrier tablets (18). A transporting member movably disposed on the housing such as a rotatably cage (32), through movement thereof will transport the stored carrier tablets from the storage position in the magazine into the space between the heating panel (16) and the protective grating (26). In the new device, the carrier tablets need be touched only at major intervals by the operator's fingers.

Abstract: An aroma generator for discharging aromatic vapors into the atmosphere. The generator is constituted by a replaceable aroma cube insertable into the well of a heater unit having a heater element positioned at the base of the well. The cube takes the form of an open-ended chimney having a shallow box coaxially supported therein at its lower end to define an outlet air passage in the spaces therebetween, the underside of the box being open to expose its interior to heat emitted by the base heater. Held within the box is a pad saturated with a volatile aromatic liquid, the box and the pad having a center hole therein to form an inlet air passage. Because of the pressure differential in the chimney created by the heated and expanding air at the lower end thereof, relatively cool air in the chimney is drawn downwardly through the inlet air passage and is heated by the base heater.

Abstract: A smoke generator and system for its employment is disclosed wherein a sm is generated from a liquid smoke producing agent when the liquid is vaporized by pressurized 1000.degree. F. air which has been heated in an electrical resistance coil. The systematic application requires modular use of the electrical resistance coils through an area to provide smoke from a variety of origins in accordance with the control exercised from a centrally located control panel. The smoke producing agent, the pressurized air, and the electrical current are supplied to each module via said control panel.

Abstract: An electric steam generator for generating superheated steam for domestic use includes a cylindrical body provided with a plurality of sector-shaped vaporization chambers closed at their top by a removable plate defining at its central region a first superheating chamber. An inverted cup-shaped body closed at its top by a plate and having a lateral wall defines, together with the removable plate, a second superheating chamber surrounding the first superheating chamber. The body is provided with an electric resistance heater for heating the vaporization and superheating chambers to operating temperature. Water is pumped into the vaporization chambers where it is instantaneously vaporized to steam which flows therefrom in series through the first and second superheating chambers to a steam delivery duct.

Abstract: A hand-held electrolytically heated steam producing apparatus, e.g., steaming iron, includes a hollow housing having an interior subdivided by a partition wall into a pair of compartments communicated by a passage. A first compartment accomodates a pair of spaced electrodes that are at different electrical potentials during steam-producing operations of the apparatus, while the second compartment is penetrated by a tubular stack extending from a steam outlet in the bottom wall of the housing to a given distance from the top wall of the housing but below the level of the passage. The top wall of the second compartment is also provided with a water inlet offset from the steam stack and equipped with a removable closure.

Abstract: A heat exchanger for simultaneously vaporizing a hydrocarbon fluid and water to produce a hydrocarbon fuel gas and steam includes a body member with a smooth surface axial bore having an enlarged end. The non-enlarged portion of the bore receives an elongated thick-walled sleeve having two separate coextensive, interjacent, helical passages formed in its outer surface and positioned in liquid tight engagement with the inner surface of the bore. The first passage communicates with a water inlet and steam outlet at opposite ends of the body member. The second passage is of larger in cross section than the first and communicates at one end with a hydrocarbon fluid inlet on the body member adjacent the water inlet and at its other end with the enlarged bore portion, the latter having a hydrocarbon fuel gas outlet.

Abstract: An atomizer injects fuel oil into one end of a heated tube. As the atomized fuel travels down the tube, it is vaporized. A nozzle at the other end of the tube assures that pressure is built up in the tube so that fuel oil vapor is applied as a steady continuous stream from the nozzle directly into a combustion chamber where it is mixed with ambient air and burned. Ambient air is drawn into the combustion chamber through a vent and a blower is not used. A secondary tube is in communication with the main tube through a bore in the side wall of the main heating tube near the outlet nozzle. A screen at the outlet nozzle prevents particles from clogging the nozzle. These particles fall into the secondary tube to be collected in a sump at the end of the secondary tube. Electric current is passed through the walls of the main heating tube and the secondary tube to generate heat to vaporize the fuel and to provide a temperature gradient along the main heating tube such that a maximum temperature of above 400.degree.

Abstract: A household electric device, specifically a sublimer of perfumed bars and/or insecticides, includes a current receiving reservoir and a compartment in which a bar is housed, so that the bar gradually receives the heat necessary for the slow sublimation thereof. The reservoir has openings through which the vapors of the bar are discharged outwardly. The lateral sides of a central opening through which the vapors of the bar are discharged outwardly is provided with slots, blind at their ends, along which there is guided a manually-operated slide which incorporates a blade situated in the passage of the bar, constituting an element for removing the bar from the compartment in which it is housed. The free front of the casing is provided with holes in which there are disposed respective metal bushings covered with insulating sleeves. The metal bushings are connected to the plug of the assembly and to the heating resistance of the bar, and constitute receivers for another plug.

Abstract: A pressurized can (3) containing material to be dispensed by evaporation is inserted into a case (1) and secured therein by latches (16). An actuator assembly comprises an annular solenoid (21,22) surrounding a plunger (28). The plunger (28) has an axial bore for receiving a shaft tube (29) which is pressed by plunger (28) on a can valve when the solenoid (21,22) is energized. The shaft tube (29) is provided with a nozzle tube (31) extending toward the opening (37) of an annular electrical heating device (34) comprising a perforated disk (39). Material from the can (3) is released by energizing the solenoid (21,22) automatically at selectable time intervals for preset durations. The material falls on the heated perforated disk (39) and evaporates through the holes (40) in the disk (39) into the atmosphere. Higher amounts of insecticide, deodorant and disinfectant agents can be automatically evaporated into a space of higher volume with less material by this apparatus.

Abstract: A system utilizing a dry steam jet for cleaning, sterilizing and related purposes. A steam generator in the form of a flash boiler with a heat source is utilized. A reservoir containing a mixture of water and containing a cleaning agent or other chemical is provided. A motor driven reciprocating pump, pumps the liquid mixture into the flash boiler. The mixture immediately is vaporized and then is discharged through the jet nozzle. The system is coordinated to be operated electrically under manual control. The flash boiler is internally etched in a non-uniform manner to enhance the flashing of the liquid. The pump speed, water flow, etched boiler size, and applied heating temperature are coordinated to achieve the result that a steady flow at the desired pressure and temperature from the jet nozzle can be had.

Abstract: A device for dispensing thermally volatilizable substances of the type having a heating surface against which is placed a mat which is impregnated with a volatilizable substance. A clamp arm, which is biased toward the heating surface, presses the mat against such surface, and a lever, which is depressible, when depressed engages the clamp arm and moves it away from the heating surface, thereby releasing the mat to facilitate replacement thereof.

Abstract: Apparatus for efficiently and inexpensively deodorizing rooms, such as restrooms in commercial establishments, on an as needed basis is disclosed. The apparatus operates in conjunction with a standard hot air hand dryer commonly found in public and commercial washrooms, restrooms, showers, and the like. When the hot air dryer is used in conjunction with this invention, a powerful flow of air is moved past a deodorizer source thereby providing the deodorizing. Thus, the more useage of the hot air dryer, the more room deodorizing is provided. The apparatus includes a cup or housing container which is securely mounted or attached to the intake grill of the hot air hand dryer. The cup or container includes openings or apertures at selected locations such that the free flow of intake air is not inhibited. There is also included, in an unobvious location of the cup, a larger opening or slot suitable for placing a stick or disk of a vaporizable deodorizer in the container.

Abstract: An appliance for removing creases is disclosed having a handle (1) and a body (2) comprising a tank (3) partially filled with water (4) heated by an electrical heating and vaporized element (5) connected to contact prongs (7). The vapor so produced flows through a duct (9) to orifices (11) in a plate (10) adapted to be slid over the surface from which creases are to be removed. The tank (3) is filled through opening (16) which is partially closed by an inwardly extending retainer flange (18) which is located between a stopper (20) for the filling opening (16) and a retaining finger (19). At its other end, the handle (1) has an opening (22) therein in alignment with a socket (8) which receives a removable plug (30) of a supply cord. When the plug (30) is in place (FIG. 1), it is impossible to turn the handle. Upon removal of the plug (30), the handle (1) may be pivoted about the axis of the opening (16) (FIG.

Abstract: A non-toxic smoke generator for simulating the smoke of a fire includes an nner cylindrical shell surrounded in spaced relation by a thermally insulated outer casing to form an air flow passage therebetween through which compressed air heated by electric air heaters is caused to flow in a helical pattern to heat the shell to a temperature above the vaporization temperature of a vaporizable smoke substance. The smoke substance, such as propylene glycol, polyethylene glycol 200 or mineral oil, is pumped from a reservoir through a supply pipe having a coiled preheating portion disposed in the space between the shell and housing and is sprayed through a wide spray atomizing nozzle into heated vaporization chamber where it is vaporized and discharged as non-toxic smoke.

Abstract: A portable battery-powered electric smoke generator for simulating the sm of a fire for training purposes includes a tubular housing enclosing a rechargeable battery power supply having terminals connected to the ends of a tubular metallic coil filled with a vaporizable smoke producing liquid. One end of the tubular coil communicates with a smoke discharge port at one end of the housing. The discharge port is sealed by a fusible disk and communicates with an apertured smoke release cup. An electric switch arrangement, either thermal or electronic, is provided on the housing in the circuit between the coil and power supply for energizing the tubular coil for a time sufficient to superheat the vaporizable liquid therein. The heat of the tubular coil melts the fusible disk to release the superheated liquid through the smoke release cap into the atmosphere as a vapor simulating smoke. The liquid may be mineral oil, polyethylene glycol 200 or propylene glycol.

Abstract: An apparatus for applying a mixture of air and vapor to the face or hair includes an evaporator comprising a closed tank partially filled with water to leave a residual space thereabove and provided with an electric heater immersed in the water for generating a steam which fills the residual space. A first downwardly sloping tube connects the an attachment, located higher than the tank and adapted to fit on the head or face to be treated, to the residual space. A upwardly sloping second tube connects the outlet of a fan positioned lower than the tank to the residual space. Both the temperature and the flow of the vapor-air mixture can be varied by changing not only the power of the electric heater but also the rotational speed of the fan.

Abstract: A dishwasher comprising a dishwashing tub, a liquid circulation pump, and an immersion heater disposed at a lower section of the dishwashing tub. The immersion heater is covered by a heater cover which includes a bottom free end and an upper free end. When the liquid circulation pump and the immersion heater are energized, warm liquid is circulated through the bottom free end of the heater cover. When only immersion heater is energized, the liquid disposed in the heater cover is heated up to generate the steam through the upper free end of the heater cover.

Abstract: A fuel vaporizing and atomizing device which is particularly suitable for ammoniacal fuels comprises a chamber having a resonant plate therein, possibly forming part or all of one wall of the chamber, which plate is in physical contact with a transducer operating to vibrate the plate at an ultrasonic frequency in order to encourage vaporization which is further enhanced by passing the partly vaporized fuel through a silent discharge device operating at a very high voltage, following which the fuel passes over a catalyst such as platinum.

Abstract: A superheated vapor generator including a porous material substantially filling an annular space between two concentric spaced apart tubular inner and outer electrodes connected across a power source. A pump is provided to pump a predetermined quantity of liquid into the porous material to temporarily complete the circuit through the electrodes and generate superheated vapor or steam. Since the liquid itself completes the circuit, no switches or controls are required. Labyrinthe passages between the pump and the inlet to the annular space and between the interior surface of the inner electrode and a tubular steam discharge outlet prevents dangerous current leakage and assure generation of superheated vapor. An electrically grounded porous metal plug in the vapor outlet minimizes electrical shock hazards. The vapor generator is held in the hand and can be used for setting or treating human hair.

Abstract: A hand held apparatus for the vapor polishing of plastic surfaces by movement of the apparatus over a plastic surface to be polished includes a body portion defining a vaporizing chamber. A container for plastic solvent, such as methylene chloride, is mounted on one side of the body for flow of solvent into the chamber when the apparatus is positioned with the container disposed above the chamber, with the solvent flow being interrupted when the apparatus is inverted to dispose the container below the chamber. A thermostatically controlled electric heating element is disposed in the chamber for vaporizing the solvent. An open-end guide tube projects from the opposite side of the body and is in fluid communication with the chamber. The guide tube opens downwardly when the apparatus is positioned with the container disposed above the chamber for directing the vaporized solvent to the plastic surface to be polished.

Abstract: A compact, economical electrically heated vaporizer having a fast response time and capable of vaporizing liquified petroleum gas at a rate of ten to forty gallons or more per hour with safety and without excessive superheating and/or cracking of the liquified petroleum gas utilizes a metal casting having a closed internal cavity separated into two chambers by an integral barrier. The casting serves as a pressure vessel and heat sink as well as providing a heated interface between electric resistance heaters received in passageways in the barrier and the liquified petroleum gas. The heat generated by the heaters is disseminated uniformly throughout the casting surrounding the chambers. The liquified petroleum gas inlet at one end of the casing connects with the end of one chamber. Multiple small passageways in the barrier at the other end of the casting connect the other end of the one chamber to the adjacent end of the other chamber.

Abstract: A heating apparatus for the vaporization of a mixture of two liquefied gases in chemical equilibrium with a binary compound thereof includes a vertically disposed enclosed vessel having a lower liquid zone to which the mixture to be vaporized is supplied as a liquid from an external supply source and an upper vaporized gas zone from which gas can be removed for use. A vertically disposed heating element, which may be an electric heating element, steam tube, and the like, extends downwardly in the vessel through the vaporized gas zone and terminates above the portion of the liquid zone communicating with the liquid supply and is adapted to supply sufficient heat to vaporize a gaseous mixture from the liquid zone. A housing is disposed about the heating element in spaced relationship thereto and a heat transfer medium is contained within the space.

Abstract: A humidifier comprising an electric lamp, a protector in the form of a dome-shaped member surrounding the glass bulb of the electric lamp, an evaporation layer made of capillary substance closely contacted with the outer surface of the protector to cover the same, and a water-holding saucer for immersing a portion of the evaporation layer in water or a tightly closed tank having a water supply port at the lower end thereof which communicates with the outer surface of the evaporation layer in sealed relation to the outside. By making the protector of light transmitting material, the humidifier can be used also as an all-night light. The evaporation layer is surrounded with an ornamental cover having water vapor outlets.

Abstract: A device for dispensing a thermally volatilizable substance in which a housing is formed with a linear open-ended, open top guide channel extending across the upper portion thereof. A window is formed in the floor of the channel and a heater is disposed below the window, providing a support for a member impregnated with the volatilizable substance. A grid spans the open top of the guide channel above the window in juxtaposition therewith to permit release of the substance, e.g. an insecticide, while a skid or runner-shaped element carried by said grid presses the member against the heater.The impregnated member is slidably introduced into the channel through end open end thereof and when the volatilizable substance is exhausted, the member is ejected from the channel by the insertion of a new member into the channel.

Abstract: A fluid delivery control device for regulating fluid delivery by a pump to the heated vaporization chamber of a steam curling iron through a fluid conduit provided with a spring biased valve in response to the temperature of a heating element in the chamber includes a bimetallic disc in the chamber having the property of changing its shape when heated to a temperature corresponding to the minimum temperature required of the heating element for vaporizing the fluid. A fluid delivery tube through which the fluid is delivered from conduit to the chamber has one end adjacent to the valve and the other end attached to the disc for movement therewith. When the chamber is below the minimum temperature, the disc pushes the one end of the tube against the valve to hold it closed and prevent delivery of fluid through the tube to the chamber.

Abstract: An improved electric steam vaporizer having a container defining a liquid reservoir and a removable cover for the container. Two parallel electrodes depend into the liquid reservoir from a cap attached to the cover. The electrodes are attached to the cap by inserting into electrode-receiving openings formed in the cap, welding the conductor ends on a line cord to tabs which project through the cap, bending the tab to mechanically lock the electrodes to the cap and in one embodiment potting the tabs and line cord conductor ends with a sealing material. An electrode housing attached to the cap surrounds the electrodes to define an inner-boiling chamber, an outer water-filled insulating chamber, and a small volume annular surge chamber which surrounds the lower end of the boiling chamber.

Abstract: A combined hot air and steam hair dryer providing for discharge of hot air and steam through the same aperture, comprising a housing, constituting an air chamber, supported on a balancing base, and provided with a discharge aperture at the forward end and an air inlet means at the rear end, with a motor-powered fan in the latter to drive the air towards the aperture. Intermediate the ends of the housing are provided a plurality of heating coils and, forward thereof, adjacent the aperture, a steam generating casing enclosing a heat rod and having discharge holes in the direction of the aperture, with the heat rod, coils and motor interconnected to a lead wire leading to an electric source and simultaneously activated by a switch. The base contains a water reservoir provided with a pump, to which is connected a hollow tubing leading into the casing, with means to inject water from the reservoir thereinto, therein expanding the water into steam, to be sprayed from the discharge aperture with the hot air.

Abstract: A device destined for the emission of vapors of an active substance, in particular an insecticidal substance, is described which comprises, in a rigid assembly,A. a reservoir containing the active substance and having an evaporation surface for the emission of the active vapors, said reservoir comprisingI. a system of two plates of a porous or fibrous material, one of the large faces of one of the plates facing one of the large faces of the other, and a frame for the plates which separates the space between the two plates from the exterior while leaving entirely or partially free at least one of the two large external faces of the two plates, which can thus serve as an evaporation surface, andIi. an insecticidal organo-phosphorus substance having a vapor pressure, at 25.degree. C, of between 5 .times. 10.sup.-.sup.5 and 5 .times. 10.sup.-.sup.3 mbar, with or without addition of a pyrethrinoid insecticidal compound having a vapor pressure, at 25.degree. C, of between 1 .times. 10.sup.-.sup.6 and 2 .times. 10.

Abstract: A device intended to emit vapors emitted by an active substance, in particular an insecticidal substance, which comprises, in a rigid assemblyA. a reservoir intended to contain the active substance and having an evaporation surface for the emission of the active vapors,B. an electrical resistance associated with the said reservoir in such a way as to heat at least the part of the said reservoir which comprises, or is close to, the said evaporation surface, andC. a system for connecting the resistance to a source of electric current: the said reservoir comprisesI. a system of two plates of a porous or fibrous material, one of the large faces of one of the plates facing one of the large faces of the other, and a frame for the plates, which separates the space between the two plates from the exterior while leaving entirely or partially free at least one of the two large external faces of the two plates, which can thus serve as an evaporation surface, andIi.

Abstract: A compact portable electrically heated steam generator includes an electrical resistance heating element loosely centrally located within a flexible reinforced non-metallic tube through which the liquid to be converted to steam can flow. Grounded metallic inlet and outlet couplings are provided at the ends of the tube and the ends of resistance element is electrically connected thereto. At least one intermediate point of the resistance element is connected to a source of electricity in such manner that electrical current flows across the resistance element to ground so that the liquid flowing through the tube is heated and vaporized. A part of the resistance element is arranged to be under control of a temperature responsive switch having a temperature sensor downstream of the outlet coupling.

Abstract: An apparatus for wetting respiratory gas comprises a receiver having an interior wetting chamber and a cartridge receiving chamber which communicates at its lower end with the wetting chamber and which has an open end for receiving a heater cartridge. The heater cartridge is disposable in the cartridge receiving chamber and it includes an inner portion containing a heater element and an outer sleeve portion which has a lower end disposed in the wetting chamber and has side walls which are spaced from the wall of the inner portion of the cartridge containing the heater element. The receiver contains a duct for supplying water into the space between the sleeve and the inner portion of the cartridge containing the heater so that the water will be heated in its passage around the inner portion and may be discharged through openings at the lower end of the sleeve into the wetting chamber.

Abstract: An element for an electrically-energized vaporizer for liquid, including a body of electro-conductive material that has one major face defining a liquid inlet and a second major face defining a vapor outlet. The body is both thermally and chemically stable and is permeable by a liquid to be vaporized. The body is electrically energizable to heat and vaporize liquid as it flows from the liquid inlet face to the vapor outlet face. A plurality of blind recesses in the body are open to the vapor outlet face for providing effective escape routes for earliest produced vapor in the body whereby the entrainment of liquid in vapor issuing from the vapor outlet face is reduced.

Abstract: A hand held thermal electric fogging device is disclosed comprising a housing having a barrel-like connector provided thereon which is adapted to receive the valve means of an aerosol container containing the insecticide/oil solution. A plunger is movably mounted on the connector and is movable from a normal inoperative position to an operative position to open the valve means on the aerosol container so that the contents of the container are supplied to the discharge outlet of the connector. A tubular heat shield or manifold is connected to the housing and extends therefrom and has a coiled conduit positioned therein. The inlet end of the coiled conduit is connected to the outlet end of the connector so that the insecticide/oil solution is supplied to the interior of the conduit. A spray nozzle is provided on the discharge end of the conduit. An electrical heating means is positioned in the central area of the coil for heating the solution in the coiled conduit.

Abstract: A steam producing device is operative to discharge high velocity steam for use in steam cleaning and includes a burner positioned within a housing and supplying heat to a plurality of generally coaxial, fluid containing coils including a warming coil, a closely wound wall cooling or intermediate coil, a preheat coil and a final heat coil. The warming coil is located within the wall cooling coil and discharges thereinto near the upper end of the housing. The wall cooling coil discharges near burner level into the preheat coil which conically decreases in diameter toward the upper end of the housing where it connects to the final heat coil. The final heat coil descends toward the burner and terminates in connection with a nozzle bearing discharge hose.

Abstract: An electric fluid heating apparatus include a number of electrically conductive pipe coils arranged side by side in parallel and connected to and extending between inlet and outlet pipes for flowing the fluid to be heated from the inlet pipe to the outlet pipe. Each pipe coil is disposed in a vertical plane and comprises a plurality of vertically extending laterally spaced pipe sections joined by U-bends at the top and bottom to form a single continuous serpentine coil. The central electrical points of the pipe coils are electrically connected to the phases of a polyphase alternating current source in a repetitive order and means associated with the ends of each pipe coil completes the circuit to the respective phases whereby the coils are resistively heated by the current flowing therethrough.

Abstract: An improved vaporizer for directing water vapor into the air without causing foaming or accumulation of water at the exit orifice. A relatively large receptacle contains a subhousing consisting of two separated chambers. A first chamber, having electrode means therein for generating steam forming the water vapor and a second chamber are separated by partitions defining a serpentine path with an inverted U-shape configuration. The orifice communicates with the downstream end of the path. The steam after being generated flows along the serpentine path by rising in the first chamber, passing over the top of the partition and downwardly into the second chamber, then moving upwardly toward and through an exit orifice into the surrounding environment. During the downward portion of its path of travel, the relatively large water particles separate from the water vapor by gravity and return to the second chamber, the latter being in fluid communication at its bottom with the first chamber.

Abstract: A heater having a water injection system for increasing the water vapor content of the atmosphere and reducing the temperature of the exhaust products of the heater. A nozzle assembly located in the stack of the heater injects a fine spray of water into the hot exhaust gases and onto the hot stack surface.

Abstract: A hand steaming device includes a housing having a reservoir adapted to contain a quantity of water, a pair of spaced apart electrodes immersed in the water in the reservoir for generating steam upon passage of electrical current between the electrodes through the water and a switch connected in circuit with the electrodes for selectively controlling the energization of the electrodes from a source of electrical power. The reservoir is provided with a fill port and a removable fill cap seals the fill port. The cap is movable between a first position wherein it seals the port and a second position wherein the port is not sealed. Control means are cooperatively associated with the switch and the fill cap and arranged such that when the fill cap is in the second position the switch is automatically opened to prevent energization of the electrodes and when the fill cap is in the first position the switch can be selectively closed to energize the electrodes or open to deenergize the electrodes as desired.

Abstract: A vapor generator with air freshening material and/or insecticide materials stored in porous material of the generator subject to heat accelerated vaporization release. Controlled vapor release of the stored material is attained through moderate heating and exposure of storage material in the generator.