Patent
Method of safeguarding a liquid in a tank against theft, and fixing element for the execution of the method
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TLDR
In this article, a method of safeguarding a fuel tank against theft is described, whereby an expansion element is permanently mounted in the tank's filling stub, said element being arranged to be locked by a spring force and to allow through-flow.Abstract:
not available for EP0144363Abstract of corresponding document: WO8404501Method of safeguarding a tank against theft, for example a fuel tank on a vehicle, whereby an expansion element is permanently mounted in the tank's filling stub, said element being arranged to be locked by a spring force and to allow through-flow. The method is characteristic in that before the expansion element is inserted, one sets it in the folded position by means of a fixing element, the strength characteristics of which are reduced by contact with the liquid. A fixing element (5) for the excution of the method is described. The fixing element (5) can be designed for use in connection with an expansion element in the form of a coil spring (4), and be bar-shaped with a transverse hole in each end. For use in the filling stub of a fuel tank, the fixing element (5) can be made of polystyrene. The method according to the invention makes the fitting of the discussed type of theft-safeguard considerably easier than is possible with hitherto-known methods.read more
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References
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Patent
Protective device for preventing withdrawal of liquid from a tank
TL;DR: In this article, a screw passes through the two plates in such a manner that turning of the screw draws the plates together, expanding the legs against the interior wall of the fill pipe.
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