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. A normally closed electrical switch means is provided on the housing for controlling the heating means. A lever is pivotally mounted on the housing and is selectively movable from a normal inoperative position to a first position wherein it closes the switch means to energize the heating means. The lever is also movable from the first position to a second position wherein the plunger in the connector is moved to its operative position so that the contents of the aerosol container are supplied to the coiled conduit which has been previously heated by the electrical heating means.
A hand held thermal electric fogging device comprising: a housing, a connector mounted to said housing having discharge outlets and an inlet, said inlet being shaped to receive the valve means on an aerosol container; a plunger movably mounted in said connector and extending outwardly therefrom, said plunger being movable from an inoperative position to an operative position to open the valve means on the container so that the contents of said container are supplied to said discharge outlet through said inlet; an electrical heating cartridge operatively mounted on said housing; a coiled conduit wrapped around said heating cartridge in helical fashion, said conduit having an inlet and operatively connected to said discharge outlet of said connector and also having a discharge end; a spray nozzle on said discharge end of said conduit; an insulating tube made of heat insulative material surrounding said coiled conduit and said heating cartridge to maximize the heat retained adjacent said coil; a normally open electrical switch in said housing connected in series with a power source and said cartridge for controlling said cartridge; a thermostat in series with said cartridge and said power source for maintaining said cartridge below a predetermined maximum temperature; a lever pivotally mounted on said housing and being selectively movable from a normal inoperative position to a first position wherein said switch is closed to energize said cartridge and thence movable to a second position wherein it engages said plunger and moves said plunger to its operative position for introducing the contents of said container to said coiled conduit and outwardly through said spray nozzle; bias means urging said lever to its inoperative position; a tubular heat shield surrounding said insulating tube in spaced relation thereto; and means operatively mounting said heat shield to said housing.
Claim 2
Dependent Claim
296 words
A hand held thermal electric fogging device comprising: a housing, a connector mounted to said housing having discharge outlets and an inlet, said inlet being shaped to receive the valve means on an aerosol container; a plunger movably mounted in said connector and extending outwardly therefrom, said plunger being movable from an inoperative position to an operative position to open the valve means on the container so that the contents of said container are supplied to said discharge outlet through said inlet; an electrical heating cartridge operatively mounted on said housing; a coiled conduit wrapped around said heating cartridge in helical fashion, said conduit having an inlet and operatively connected to said discharge outlet of said connector and also having a discharge end; a spray nozzle on said discharge end of said conduit; an insulating tube made of heat insulative material surrounding said coiled conduit and said heating cartridge to maximize the heat retained adjacent said coil; a normally open electrical switch in said housing connected in series with a power source and said cartridge for controlling said cartridge; a thermostat in series with said cartridge and said power source for maintaining said cartridge below a predetermined maximum temperature; a lever pivotally mounted on said housing and being selectively movable from a normal inoperative position to a first position wherein said switch is closed to energize said cartridge and thence movable to a second position wherein it engages said plunger and moves said plunger to its operative position for introducing the contents of said container to said coiled conduit and outwardly through said spray nozzle; bias means urging said lever to its inoperative position; a tubular heat shield surrounding said insulating tube in spaced relation thereto; and means operatively mounting said heat shield to said housing.
Claim 3
Dependent Claim
37 words
The device of claim 1 wherein said tubular heat shield includes an inner end adjacent and spaced from said housing, an insulating wafer being provided over said inner end to prevent transfer of heat to said housing.
Claim 4
Dependent Claim
17 words
The device of claim 1 wherein said thermostat is located on the exterior of said insulating tube.