Abstract: A pest control device is provided with (1) a volatile substance holder, which includes a pest control component volatilization surface and a liquid volatilization surface, and (2) an indicator, which is composed of a wick and a bottle. The pest control component volatilization surface holds a pest control component volatile at ordinary temperature so that the pest control component can be volatilized into the air, while the liquid volatilization surface is able to hold a liquid volatile so that the liquid can be volatilized into the air. The wick is for supplying the liquid to the liquid volatilization surface of the volatile substance holder, while the bottle contains the liquid to be supplied to the liquid volatilization surface via the wick. In this manner, the indicator indicates how much the pest control component, which is volatilized from the pest control component volatilization surface is left, by showing how much the liquid is left in the bottle.

Abstract: A portable mosquito repelling/killing device, it has a box convenient for carrying; a power source provided by dry batteries or provided by inserting the plug seat on the box in an A.C. current socket. The box of the device is combined with a clamping member in order that the device can be hung on a person. The box is provided thereon with an elastic pusher sheet, a insertion slot, several gas emitting holes, a switch, an LED light emitting hole and an electric power spigot for connecting outwardly; and is provided therein with an oscillating circuit, a buzzer, an electric heater, a heater fixing seat and batteries supplying electric power.

Abstract: An electric exhaler for the vaporization of disinfesting insecticide products comprises a heating resistance (R) and a refill of porous ceramic material (S) impregnated with an active substance apt to be evaporated at high temperature. The resistance (R) is apt to reach a surface temperature of at least 500° C. and the ceramic refill (S) is positioned in tight contact therewith. Preferably, the resistance (R) is cylindrical and the refill (S) has a cross-section having a &OHgr;- or C-shape, the curved portion of which has an inner radius corresponding to the outer radius of the resistance (R).

Abstract: A method for exterminating existing infestations of ants, termites, insects or other living organisms in structures, soils and other materials using a capsicum-containing killing solution in either a liquid or vapor form, including the steps of delivering the killing solution to the infested portions of the structure, and contacting the termites, insects or other living organisms forming the infestation. The method obviates the need for toxic or environmentally unsafe chemical compounds, and capsicum is readily available and economical. More importantly, the novel pesticide and method of use of the present invention is highly effective against termites in dry areas, wet areas, inaccessible and exposed areas, including around and under foundations, in ceiling and in wall portions of structures.

Abstract: A projectile can be used to administer pesticides such as one or more from the group consisting of 4-allylanisole, anisole, allylbenzene, 4-isopropylanisole, p-anisaldehyde, ethylbenzene, cumene, 4-methoxyacetophenone, 4-methylstyrene, 2-propylphenol, phenetole, and toluene, for scolytid infestation. Conifers, which are a target for scolytids, are protected by the application of the pesticides by use of a projectile containing the compound which explodes upon contact with the conifer thereby emitting the compound.

Abstract: A mobile fumigation system and method is provided. The system includes a mobile fumigation chamber that is self-contained with its own power source, able to provide temperature-controlled storage on-site at a port of entry, fumigation treatment, and full transport capability. The mobile fumigation chamber also includes an integrated vapor recovery system for purifying chamber air following fumigation processing.

Abstract: A plant, which affords moment-by-moment control of quantities of individual substances to be simultaneously diffused into the environment to provide, for example, control of insect pests. Unused active substances are preserved away from light and air.

Abstract: Switchable mosquito expelling/killing device including a box body having a clip for hanging the box body on a user's body. The box body is disposed with a pushing block, an electric mosquito incense mat insertion hole, gas releasing slots and a switch. An oscillating circuit and a heater fixing seat, an electric heater and a cell for supplying power are disposed in the box body. By means of switching the switch, the mosquito expelling/killing device can be switched between a mosquito expeller using the oscillating circuit to generate a sound wave simulating the sound wave of male mosquitoes for expelling fertilized female mosquitoes and an electric mosquito incense device using the electric heater to heat electric mosquito incense mat for releasing mosquito-killing incense to kill the mosquitoes.

Abstract: A game attractant heating device for heating a quantity of liquid game attractant to a temperature between 90° and 130° degrees Fahrenheit. The heating device preferably includes multiple liquid attractant holding chambers each with a separate heating element for simultaneously heating two liquid attractants simultaneously. The heating device is also preferably battery powered.

Abstract: The invention is directed to an insecticide delivery system for delivering an insecticide to an ambient environment. The insecticide delivery system includes a can having an open end and an interior. A thermally activated insecticide is disposed within the can interior. An electrical heater assembly is disposed adjacent to the can. The heater assembly is configured for increasing a temperature of the can to a temperature whereby the thermally activated insecticide is delivered to the ambient environment. The heater assembly includes a resistance heater wire connected in series with a thermal cut-off device. The resistance heater wire may include a parallel shunt at one or both ends thereof.

Abstract: An electric insecticidal apparatus comprising a vessel for storing insecticidal solution, which is oriented in a direction in use; a heating chamber in which the vessel is mounted, said heating chamber containing a heating element; a wick for drawing up the insecticidal solution in the vessel, said wick being provided in the vessel such that the insecticidal solution drawn up by the wick is heated and vaporized by the heating element; an inlet provided at a side of the heating chamber for inserting the vessel into the heating chamber, said vessel being laterally inserted into the heating chamber through the inlet by orienting the vessel in the proper direction; and a guide and holding means for guiding the wick to and holding the wick at a predetermined position at the time of insertion of the vessel into the heating chamber such that the wick confronts the heating element of the heating chamber at a predetermined distance from the heating element, which is provided in the heating chamber.

Abstract: A scent dispenser including a housing and a hook for suspending the dispenser attached to the housing is provided. The housing includes a pair of aligned openings to draw air through the housing and across a scent receptacle. Battery powered circuitry connects a fan to timer circuitry and to a photo cell for control of the fan during scent dispersion. An LED is provided to indicate the operating status of the device while a toggle switch provides manual on/off control.

Abstract: A lamp having a hydrocarbon fuel source is provided. The lamp includes a housing and a fuel source containing hydrocarbon fuel. A mantle is disposed inside the housing and is in communication with the exit of the fuel source. A cover is attached to the housing in thermal communication with the interior housing. The cover has a slot and a replaceable pad is disposable in the slot; the pad preferably contains a volatilizable substance. When the fuel egresses the fuel source and is ignited and burns, heat generated from the fuel is conducted through the cover to the pad so that the volatilizable substance is volatilized. The volatilizable substance is preferably an insect repellent. The lamp may be portable such as a flashlight. A separately attachable cover that may retrofit an existing lamp is also provided.

Abstract: A combination ultra-low volume aerosol generator and thermal fogger for dispensing a mosquito killing insecticide includes a power source which may be a gasoline driven engine and an air pump connected to the power source. The air pump drives a turbine pump which has a rotatable turbine wheel. There is a fluid pump connected to and driven by rotation of the turbine wheel. An insecticide formulation tank is connected to the fluid pump and provides insecticide to an atomizing nozzle and a thermal fog muffler and fog discharge. There is a flow selector valve connected to the fluid pump to determine which discharge device receives fluid insecticide. There is a volume control valve connected between the fluid pump and the flow selector valve.

Abstract: A liquid storage container, in which an extermination liquid is stored, is at an upper portion of a case. A gauze or other permeable material is mounted on the outer surface of a support on a lower portion of the liquid storage container. An upper end of a portion of the gauze is transferably connected to the liquid storage container to transfer extermination liquid to the rest of the gauze by wicking action. Capillary action causes the extermination liquid to saturate the gauze. A sirocco fan and a motor, below the gauze, causes air from outside to be drawn into the case from an opening on the upper portion of case. The air passes through and around the gauze, causing vaporization of the extermination liquid in the gauze. The vaporized extermination liquid, cooled and densified by vaporization, is blown outside the case through a lower ventilation opening of the case.

Abstract: A battery-actuated insecticide transpirator comprises: a radiation plate located in contact with an insecticide; and a heating element using a battery; wherein the surface of radiation plate is heated to a temperature of from 90.degree. to 130.degree. C. for transpirating the insecticide, and wherein the heating element consists of a battery connected to a positive temperature coefficient thermistor (an organic PTC) made from a mixture of thermoplastic polyolefin resin and carbon; and wherein the insecticide is a cyclopropane carboxylic ester pyrethroid having a vapor pressure of 1.0.times.10.sup.-4 mmHg or higher at 2.degree. C. A method for transpirating insecticide using the transpirator.

Abstract: A mole killing device having a direct connection to the exhaust of a small gasoline engine and conveying the fumes from the exhaust to mole passages and preventing the escape of the fumes from the passages.

Abstract: An insecticide dispenser that has a safety device such that when there is a loss of power, the inlet and outlet ports of the dispenser are shut to prevent loss of insecticide. A heater is positioned in the dispenser near the air inlet port to heat the incoming air before it comes in contact with the insecticide. The dispenser has a test mechanism to test the dispenser and insure it is working properly. The timer of the dispenser allows for setting a start time and a period of time that the dispenser is active.

Abstract: A hand-portable fire ant killing device for vaporizing liquid resmethrin and infusing vaporized resmethrin throughout a fire ant mound on ground includes a dome, sized for fitting over a fire ant mound to be exterminated, having a top and an interconnected lower lip for contacting the ground entirely around the fire ant mound and for forming a closed interior chamber above the ant mound, a lightweight, high temperature gas discharging device which is mounted on the top of the dome, a high temperature gas discharging manifold directed into the closed interior chamber between the dome and the ant mound, a tank for containing resmethrin without pressurization which is mounted on top of the dome and a metering chamber and conduit which are connected for delivering a predetermined amount of resmethrin by a force overcoming the pressure in the dome for vaporization therein.

Abstract: A scent-releasing pole for attracting deer to a hunter. Two tapers are disposed in a hollow tube, and extend above the open upper end of the tube. Each taper is made up of a combustible stick, around the upper end of which is wrapped a layer of peat. The layer of peat is partly overlaid with a semicricular layer of wax impreganted with a scent which attracts deer. The scent is released by burning the tapers.

Abstract: A method, compositions and apparatus are disclosed for causing the death of pupating insects, especially fleas, at all stages of the life cycle. The invention includes by both direct and residual insecticidal extermination of juveniles, adults, larvae and eggs, and also provides an environment of elevated humidity, temperature and pressure around pupal cocoons to cause the cocoons open quickly, so that the emergent insects are killed by residual insecticide, thus providing complete termination of an insect infestation and prevention of development of new infestations from subsequent emergence of metamorphosed insects from surviving pupa. Extermination occurs from the simultaneous application of a "residual" adulticide, a "residual" larvacide, and high temperature hot water under pressure to the infested location.

Abstract: The dispenser has a fan and an insecticide in its cavity. Upon control signals from a controller in the "in use" mode, the fan is started and shutters provided at an inlet and outlet are opened, while in the "not in use" mode, the fan is stopped and the shutters are closed. When one of the individual timers is selected, the controller issues control signals at times specified by the individual timers within a time period previously specified by the main timer. When the dispenser is in the "not in use" mode, the shutter isolates the cavity from the outside.

Abstract: A dispensing apparatus includes a container having a plurality of partition walls, with a first and fourth partition wall positioned adjacent respective first and second end walls of the housing, with the first partition wall and the second end wall having plug members mounted to link structure to effect opening of the first partition wall and the second end wall to air flow, with conduit structure directing air flow therethrough adjacent the second end wall through a scent dispensing canister that in turn directs the thusly scented air through the first end wall by means of a blower motor directing air through the conduit structure and scent dispensing container. Remote control structure, or alternatively manual structure, may be employed to effect separation of the plug members relative to the first partition wall and the second end wall.

Abstract: A dry insect extermination device is disclosed herein having box-like housing interiorly supporting an inner frame in spaced relationship to the walls of the housing defining an air conducting passageway between apertures in the housing sidewall and apertures in the frame bottom. The frame supports a heater and a fan for drawing heated air past chemically impregnated packs so that a dry chemical vapor is dispensed from the housing for distribution into the surrounding atmosphere.

Abstract: An insect-repellent device comprising a housing to hold a charger and a circuit board, two insect-repellent units movably received in two recessed surface portions on the outside of the housing and electrically connected to the circuit board by two separate electric wires, two reel assemblies fastened on housing at two opposite sides and controlled to let off or take up the insect-repellent units, a power switch for power control, a sterilization control switch for sterilization control, and indicator lamps for power and sterilization indications respectively.

Abstract: An apparatus includes a container with a lid securable thereon, with a first inlet elbow fixedly mounted to the lid and directed interiorly of the container, and an outlet elbow positioned adjacent the inlet elbow in communication with the interior of the container. A blower motor and nozzle is directed to direct pressurized air through the inlet elbow, wherein volatile noxious fluids are permitted to vitalize, wherein such directed gases are directed through the outlet elbow and an associated flexible conduit through a nozzle into an associated gopher hole and the like. Modifications of the invention include a postioning plate and spikes mounted orthogonally relative to an axis of the nozzle for securement of the nozzle relative to the gopher hole and may further include a threaded inlet tube to permit directing of components into the container with the lid secured thereon during use of the organization.

Abstract: In order to keep flying insects, especially mosquitoes, away from people, an apparatus has been developed. The apparatus includes a box (A, A") enclosing a heat source (10, 50), provided with at least one vertically oriented flat wall (13', 53'), and a container (C, C') holding an evaporable liquid chemical product. A wick (14, 54), wrapped in an impermeable coating or sheath (19, 59), has a rectangular cross-section and penetrates inside the container (C, C'). A free portion (14", 54") of the wick (14, 54) is devoid of the coating or sheath (19, 59) and extends upwards from the container (C, C') with its largest side (14"', 54"') being disposed parallel to but spaced from the heat source (10, 50).

Abstract: The invention relates to the electric heating of animal scent using a wick to draw scent from a container and a resistive heating element.

Abstract: A disinfectant vaporizing apparatus for dropwise flowing a disinfectant liquid on a heating unit so as to provide a uniform disinfection gas on a surface of a material to be sterilized, characterized in that at least one supply port for supplying heated carrier gas at a high temperature is provided in a vaporization chamber for the disinfectant liquid. A vaporization part is provided with a plurality of cavities on an upper surface thereof and at least one dropping nozzle is provided above each cavity, wherein the disinfection gas carried by the heated carrier gas is applied on a surface of a material to be sterilized through a droplet splash removing apparatus. The droplet splash removing apparatus has a series of vertically, spaced-apart shield plates with staggered holes therein through which the vaporized disinfectant and carrier gas pass and entrained droplets of disinfectant liquid are removed.

Abstract: This invention discloses a volatile insecticide emitter having the construction wherein volatile insecticidal plates each formed by impregnating a plastic absorber with dimethyl dichlorovinylphosphate as an insecticidal component are juxtaposed in an inner space of a box-shaped container, an air filter is disposed at one of the air holes of the container communicating the inner space with the outside of the container and a motor fan is disposed at the other of the air holes so that the insecticide emitted inside the container is compulsively emitted outside the container.

Abstract: In the preferred embodiment of the present invention, a pulse fog generator powered by a resonant intermittent combustion device having a carburetor and a combustion antechamber, includes a starting air supply system for directing a flow of starting air into the antechamber, comprising an inlet/outlet check valve mounted over the discharge opening of a bellows that is reciprocated by a connecting rod eccentrically mounted to an electric motor. A priming pump is mounted on the carburetor, and comprises a priming fuel chamber hydraulically communicating with the carburetor and a piston reciprocatable within the priming fuel chamber to draw fuel from a fuel tank into the priming fuel chamber and to discharge the fuel from the priming fuel chamber into the carburetor.

Abstract: A lightweight, portable device maintains at a warm temperature a quantity of animal scent, particularly animal urine, which is used by hunters to attract animals. A battery operated heating element surrounding a chamber which removably receives a vial of the liquid scent maintains the temperature of the liquid above freezing when the device is used outdoors in cold weather, and preferably heats the scent to a temperature which closely imitates the fresh presence of live deer. The device includes a cap having two oppositely oriented threaded sections, one of the which when received on a housing of the device closes the chamber containing the liquid while the other when received on the housing enables vent openings formed in the cap to dissipate odors which emanate from the vial. Batteries of the device are located within an enlarged base and thus provide a low center of gravity, which allows the device to remain in a stable, upright orientation on the ground when desired.

Abstract: A disposable canister for use in an electric fogger includes a container to hold a fog-producing material which is constructed of a material capable of transferring heat from a heat source to the fog-producing material, an insert secured in the container to close the container and having a dome with a discharge port to allow the release of a fog, and a cap secured to the container and having an opening which overlies the discharge port of the insert to allow the release of a fog and one or more lugs which serve to activate an electric fogger when placed in the housing of the electric fogger. The cap of the disposable canister also includes outwardly extending rims which seat on the housing of the electric fogger and in conjunction with the lugs of the cap serve to lock the canister into the housing. The invention precludes the escape of any fog from the closure seal between the container and the cap into the housing of the electric fogger and provides for fully efficient use of the fog-producing material.

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 gas heater for heating a mat 12 soaked with an insecticide or the like, is heated by a catalyst reaction of a combustion gas, e.g. butane comprises a gas container 1, a gas burner 5 surrounded by a catalyst 6 which are contained in a burner 3 with apertures 3a, through which a pilot flame 81 from a pilot nozzle 8 ignited by a high voltage generator 9 is blown; a main valve 41 for the gas burner 5 and a pilot valve 82 for the pilot nozzle 8 and a high voltage generator 9 are controlled in a interlinked fashion.

Abstract: A heating device included a body having a seat for the positioning of at least one heating support having inserted therein at least one electrical resistive element, the resistive element being electrically connected to the pins of a plug for insertion into an electric socket. The body is provided with a first slit for the positioning of a first small plate or tablet, containing evaporable substances (such as antifly and antimosquito substances), so as to bring it in contact with at least a portion of the heating support and cause the evaporation of the substances in the tablet at a high temperature (about 140.degree. C.). A further seat is also provided spaced from the heating support, in which a support is arranged for a second tablet (for example, containing deodorizing substances), which evaporate at a not unduly high temperature (about 70.degree. C.). The body provides apertures for the passage and diffusion of the evaporated substances.

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 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: Disclosed is a pulse-jet engine powered, fog producing device using a carburetor to feed atomized fuel to the engine combustion chamber, the carburetor operation being characterized by a positive pressurization of a diaphragm-walled chamber to open a fuel inlet valve during the engine starting interval, and provision of a positive pressure fuel delivery to the carburetor utilizing the combustion pressure pulses of the engine as the fuel pumping impetus.

Abstract: A thermoevaporative insecticidal apparatus comprises a heat generating element 1 closely fitted to a porous carrier 6 the surface of which is impregnated with an effective ingredient and a receptacle 7 composed of a receiving tray 8 on which a plurality of supporting stands are disposed said heat generating element 1 being supported on the receptacle 7 so that said porous carrier 6 faces down opposite the receiving tray 8 and that said tray 8 is spaced from said porous carrier 6 by a distance of at least 1 cm; anda safety container assembly for use in the above type thermoevaporative insecticidal apparatus wherein a heat resistant supporting member 18 is attached to the annular outer surrounding walls 13 of a container member 14 so that said heat generating element is supportable by said heat resistant supporting member 18.

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: Storage stable, quickly acting tablets for combatting vertebrates living preponderantly in underground structures are provided consisting of a mixture of commercial magnesium phosphide and at least one molding aid placed in a cavity depending on the size of the tablet in a water vapor impermeable, tear and break resistant film covered with a water vapor impermeable, non-tear resistant, non-break resistant film, the two films being sealed together tightly against water vapor and air at their edges.

Abstract: An insect trap which comprises a chimney member adapted to allow a flow of air to be forced therethrough, a reservoir of insect attractant which under the influence of the flow of air is evaporated and borne as a stream of attractant vapor emanating from the chimney member into the surrounding atmosphere, and a tacky substance provided inside the chimney member which will trap flying insects lured therein by the stream of attractant vapor.

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 device for heating tables containing an evaporable substance such as scents, deodorizers or insecticides includes an elongated heating support of insulating material having a planar surface and a longitudinal opening therethrough. The heating support is preferably T-shaped, the planar surface being the top of the T. The planar surface is coated with an enamel coating so that residue from the evaporable substances is easily removed. A cylindrical resistance heating element is inserted into the cylindrical opening, the cylindrical element being of a lesser length than the length of the heating support. The arm portions of the T-shaped support may be each provided with a longitudinally extending hole for limiting lateral transfer of heat through the support. Conductors for supplying electricity to the heating element enter the cylindrical opening at a point displaced from the outward edges thereof so that the outward edges of the heating support member is completely insulated.

Abstract: A composition for dispensing toxic agents, such as an insecticide, comprises an internal combustion engine fuel containing a minor amount of an insecticide which is refractory to the fuel combustion conditions of the engine and soluble in the fuel. The engine fuel claimed is gasoline or a gasoline/kerosene mixture, although diesel fuels are also disclosed. The proportion of insecticide in the mixture is low enough to enable operation of the engine to power a vehicle such as a lawn mower and high enough to be effective in the engine exhaust against target pests. In use, a gasoline fuel containing up to 10% by weight of malathion is employed to operate an internal combustion engine powering an implement such as a lawn mower and the insecticide is dispensed via the engine exhaust over the ground traversed by the implement.

Abstract: A dispenser comprising a rectangular housing defining an air inlet chamber between the first partition and the top wall of the housing, a valved air inlet communicating with the air inlet chamber, a second partition defining an air outlet chamber between the second partition and the bottom wall of the housing and a central chamber between the first and second partitions, a valved air outlet communicating with the air outlet chamber, apertures in the first and second partitions for affording air flow from the air inlet chamber, at least one tray member, a support on the end walls for horizontally supporting the tray member in the central chamber and for facilitating at least partial withdrawal of the tray member, a holder on the tray member for removably holding a plurality of relatively thin rectangular envelopes which contain a substance to be dispensed and which are arranged in parallel vertical relation to each other to permit air flow past the envelopes from the air inlet chamber to the air outlet chamber

Abstract: A mixture of an active ingredient such as insecticide, fungicide, repellent or the like and a blowing agent is heated with a hot air current produced by a suitable heat source and a fan to thermally decompose the blowing agent and cause the hot air current and the gas resulting from the thermal decomposition to vaporize and diffuse the active ingredient. The mixture is accommodated within a passage formed in a container and the passage is provided therein with a fan for forcing the hot air current therethrough. A fumigating method and an apparatus of this invention ensure very efficient, quick and uniform diffusion of the vapor of the active ingredients and are usable for controlling vermin and other purposes with high safety and great convenience.

Abstract: A vaporizer for air treatment and the like producing vapors which can be renewed to provide effective operation for an extended period of time. The vaporizer comprises an hourglass-shaped container having a pair of adjacent chambers communicating by means of a restrictive orifice. Each chamber has an opening in the end covered by a porous membrane. The container contains a supply of particulate fluid-like carrier material carrying a volatile vapor-producing treating material. A part of the treating agent is transferred by the carrier material to the membrane for producing air treating vapors by volatilization or evaporation of the treating agent. Inversion of the container, mixes and redistributes the treating agent among the carrier vehicle particles and exposes a freshly loaded vapor producing membrane.