Sheet metal heating package for regenerative heat exchangers as well as a method and apparatus for manufacture of profiled metal sheets for such sheet metal heating packages
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United States of America Patent
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May 24, 1994
Grant Date -
N/A
app pub date -
Jul 13, 1992
filing date -
Jul 11, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sheet metal heating package for heat exchangers including a plurality of superimposed sheets having at least a partial profiling for instance embossments leaving free flow channels in between themselves, which sheets carry a coating serving as a surface protection, for instance a layer enamel, the sheet metal heating package having a profiling of the sheets, where at least the border edges of the respectively adjoining directly superposed sheets have a minimum spacing from each other at all points or are aligned so as not to contact each other, the border zones of the sheets and possibly the process technology-wise caused material accumulations arising at the border edges of the coating are in this way protected against chipping or spalling.
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