Boot and shoe making – Miscellaneous – Assembly machines
Patent
1986-05-22
1988-06-14
Yuen, Henry C.
Boot and shoe making
Miscellaneous
Assembly machines
126 45, 126 95, 432222, F24C 500
Patent
active
047504714
DESCRIPTION:
BRIEF SUMMARY
The invention is based on an apparatus for the evaporation of active ingredients such as pyrethrum incorporated in cellular panels or other solid carrier materials, of the type indicated in the preamble to claim 1 and known, for example, from DE-OS 3 109 401.
In the apparatus known from DE-OS 3 109 401, there is arranged in the housing behind the housing window which is designed approximately the same size as the active ingredient carrier panels, a plate-shaped electric heating means onto which an active ingredient carrier panel is placed in order to be heated to about 100.degree. C. in order to evaporate active ingredients from the heating means.
The electrical heating means is connected inside the housing to outwardly leading plugs by means of which the device can be connected to an electric supply main.
Evaporation apparatuses of this type therefore invariably require an electric heating means.
An object of the invention is accordingly to improve an apparatus of the type indicated in the preamble to claim 1 such that an evaporation apparatus which is independent of electrical energy can be achieved while maintaining at least equivalent reliability in handling and relatively long operating ability as in the past using simple means.
The solution to this problem is characterised in that in the housing containing ventilation openings there is arranged a catalytic, merely glowing, that is flamelessly acting burner with fuel tank at such a distance from the housing window that the hot waste gases from the burner flow through the housing window and activate the active ingredients.
In this way there is obtained an evaporation apparatus which is independent of power distribution networks with which, on the one hand for activating the active ingredients adequate heating is ensured but, on the other hand, despite the use of combustible substances, the risk of fire and furthermore unintentional contact with the burner are ruled out during operation of the evaporation apparatus.
With this arrangement, it is advantageous if the housing window in the housing is arranged vertically above the burner and if erection surfaces securing this position or the like and/or suspension devices are provided on the housing.
A design which simplifies handling of the apparatus is characterised in that the burner and the fuel tank are inserted exchangeably into the housing, the burner and the fuel tank preferably also being combined in one unit.
A further preferred embodiment resides in the fact that the housing, in particular on the side turned away from the housing window, has an opening through which the burner/fuel tank unit is inserted into the housing secured at least by friction, the fuel tank preferably being designed so as to seal the housing opening intended for insertion of the fuel tank.
Consequently, the housing can merely be turned over after ignition of the burner by means of the burner/fuel tank unit without coming into contact with the burner, after which a secure connection between the burner/fuel tank unit and the housing is achieved without further effort.
For this purpose, an advantageous development is characterised in that the fuel tank has a stop which is designed, in particular, in encircling manner and in that a groove cooperating with the stop is arranged in the housing.
A design which improves the effectiveness of the apparatus just described is characterised by a lengthened burner which is arranged running parallel to the base side of the housing on the upper side of the fuel tank, furthermore the housing window is oblong in design and is arranged in the same direction as the length of the burner and guide elements which secure this position are provided on the burner tank and on the housing.
In order further to increase the effectiveness, it is advantageous if there is arranged, in particular shaped, on the upper side of the housing an oblong chamber which is smaller than the housing width and is open towards the burner tank, in whose cover the housing window is provided, furthermore the oblong burner pen
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Hautmann Horst
Pregler Bernd
Schimanski Georg
von Philipp Fritz
Globol-Werk GmbH
Yuen Henry C.
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