Patent ID: 6848749
Filing Date: 2005-02-01
Classification: B08B,B25D,B28D,G21D,G21F,Y02E,Y10T

Abstract:
1. A device for the mechanical decontamination of contaminated surface of mineral materials, wherein said surface is radioactively contaminated concrete or radioactively contaminated masonry, wherein the device comprises several pneumatically actuated striking tools, wherein said striking tools are arranged in a housing with several chambers arranged over one another such that each of said striking tool is in active connection with each chamber, wherein said several chambers comprising a pressurized air feed chamber, a pressurized air expansion chamber, a suction chamber, a collecting chamber or any combination thereof, wherein said striking tools are releasably connected to the pressurized air chamber and sealingly pass through arranged chambers, wherein said collecting chamber is sealed with respect to the surroundings in an air-permeable manner, wherein said pressurized air expansion chamber is arranged between the suction chamber lying directly thereabove and the collecting chamber lying directly therebelow, and wherein said expansion chamber is passed through by several lead-throughs which form communicating connections between the collecting chamber and the suction chamber.