Patent ID: 8215704
Filing Date: 2012-07-10
Classification: B62D

Abstract:
1. A process for sealing a cavity of a vehicle body at a predetermined cross section of a cavity defined by cavity walls, the process comprising: a) providing a heat expandable baffle comprising: said carrier is fixed via the pin-like fastening devices to the rigid support plate, and the heat expandable material, when activated, expands radially from the carrier to seal the cross section of the cavity between the carrier and the cavity wall defining the cross section; b) mounting the rigid support plate to one of the cavity walls in a transverse orientation to said wall and leaving a small peripheral space between the heat expandable material and the cavity walls, c) heating the heat expandable material to said temperature in said activation temperature range, thereby causing the heat expandable material to expand and seal the peripheral space between the carrier and the cavity walls.