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 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 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 mixture of an active ingredient such as insecticide, fungicide, antiseptic or the like and a blowing agent is heated indirectly with a heat evolved by contacting an exothermic substance with water to decompose the blowing agent and to volatilize the active agent. The mixture is accommodated in at least one compartment of a container while the exothermic substance is accommodated in at least one further compartment provided with water supplying means, said compartments being separated from each other by a partition which provides a heat transferring surface.

Abstract: A mixture of an active ingredient and a blowing agent is heated indirectly with a heating element to thermally decompose the blowing agent and to volatilize the active ingredient. The mixture and the heating element are separated from each other by a partition which provides a heat transfer surface.

Abstract: A device for dispensing a microcide which consists of a first polymeric material housing a second polymeric material which second material depolymerizes when the device is in the environment of use to form an active microcide. The microcide controls the presence of micro-organisms in the environment over a prolonged period of time.

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 device for controlling the release of vapors such as insect attractants, insecticides, and other vapors such as flower fragrances (the release being a timed matter in accordance with a predetermined configuration of the device), consisting of a microdispenser for accurately controlled dissemination of vaporizable materials comprising an elongated conduit of regulated cross-sectional area and length, and a vaporizable substance enclosed in said conduit. The filamentary conduit has one open and one closed end. In another variant, a filamentary conduit can be sealed between two open ends to provide a pair of end-to-end closed end conduits. The vapor producing substance is placed in the capillary conduit by suitable means. A single filamentary tube may be used, or a plurality of such tubes together. Liquid is contained within the conduit against the action of gravity and vibrations.

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: Apparatus for use in controlling a fog generator used in applying insecticide. The control apparatus includes a control panel which is adapted to be supported at a remote location relative to the fog generator and is provided with a vertically adjustable support post having a universally adjustable mounting base for securing the control panel at a desired adjusted position. A flow meter having an adjustable flow rate valve operatively associated therewith is mounted on the control panel and connected in line between insecticide supply means and discharge means. A thermometer is connected in line between the insecticide supply means and the discharge head for monitoring the temperature of the insecticide being discharged, for use in determining the regulation of the flow control valve means. An electromagnetic control valve is connected between the insecticide supply means and the discharge head and is operable between an on and off insecticide discharge position by switch means provided on the control panel.