For the purposes of promoting an understanding of the disclosure, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the disclosure is thereby intended, such alterations and further modifications in the illustrated device and its use, and such further applications of the principles of the disclosure as illustrated therein being contemplated as would normally occur to one skilled in the art to which the disclosure relates.
Before the assembly of the sacrificial anode according to the described preferred embodiment of the invention, a metallic securing component 6 is fixed on the core 2 of the anode body 1 after the insulating component 4 is screwed onto the external threads 3 of the anode body 1 and this threaded connection is additionally secured with a food-compatible adhesive. This can be realized, e.g., by means of a welding spot, a solder spot and/or pressing.
It is important that the outside diameter of the securing component 6 be larger than the inside diameter of the insulating component 4. This ensures that the anode body 1 can no longer separate from the insulating component 4. Since the insulating component 4 features not only internal threads 5, but also external threads 7 for being screwed into the mounting component 8 that is realized in the form of a screw plug and makes it possible to install the entire sacrificial anode according to the described preferred embodiment of the invention in the device to be protected, e.g., a water heater, the anode body 1 is secured from separating from the remaining components so that the anode body 1 is also prevented from falling into the water heater.
An ohmic resistance between the device to be protected and the anode body 1 is realized in this case by providing a resistive element 9 in the form of a miniaturized circuit board of SMD design that has an ohmic resistance of 62Ω, wherein said resistive element is elastically supported within the mounting component 8 by means of two surrounding flat springs 10 and in electrical contact with the securing component 6 and therefore also the anode body 1 via the core 2, as specifically illustrated in
This results in a sacrificial anode suitable for cathodic corrosion protection which has an extended service life and cannot separate from its mounted state on the device to be protected during its entire time of operation.
While the preferred embodiment of the invention has been illustrated and described in the drawings and foregoing description, the same is to be considered as illustrative and not restrictive in character, it being understood that all changes and modifications that come within the spirit of the invention are desired to be protected.
Number | Date | Country | Kind |
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DE102006025252.7 | May 2006 | DE | national |