Patent ID: 6273154
Filing Date: 2001-08-14
Classification: B05B,B08B,B24C

Abstract:
A suction-removal apparatus for sand-blasting and liquid pressure nozzles, comprising:a double-wall protective shroud enclosing a blasting chamber to be placed on a surface of a work area, said protective shroud having two walls defining a cavity there-between and a surrounding suction channel communicating with a first suction-removal system for removing by suction from a contact surface between said protective shroud and the surface of the work area blasting products generated at the work area;a second, independent suction-removal system including a plurality of suction pipe connection stubs protruding through said double-wall protective shroud into said blasting chamber and distributed about an entire periphery of said protective shroud;an inner blasting-pressure nozzle enclosed in a surrounding suction pipe and being adjustably and movably mounted in said protective shroud;deflection devices selected from the group consisting of baffles, deflection plates, and profiles mounted inside said protective shroud for deflecting blasting material or liquids directly to said suction pipe connection stubs; androlling devices mounted on said protective shroud for placement in contact with the surface of the work area for allowing a displacement of said protective shroud relative to the surface in spite of a suction attachment of said protective shroud during an operation of the suction-removal apparatus.