Device for filling hollow bodies with a form stable first region and a thermally or reactively expandable second region useful for filling hollow spaces in complex structure vehicle components in automobile construction

摘要

Device for filling hollow bodies with a form stable first region and a thermally or reactively expandable second region where the inner space of the second region can be filled thru a hole in the hollow body and the first region functions as a closing device for closing the hole in the second region.