HOOD FOR THE VACUUM DUST REMOVAL Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: hood for the vacuum dust removal has a housing in which branch pipes for forcing the atmospheric air onto the surface are mounted in parallel rows at an angle to the processes surface, a branch pipe connected with the suction system and an impermeable curtain fixed along the perimeter of the lower part of the case. Every branch pipe for forcing the atmospheric air is equipped with a double-thread screw fixed on the axle, with the branch pipe being arranged checkered. EFFECT: simpler design. 3 dwg