FIELD: equipment for vacuum cleaning.
SUBSTANCE: adapter is in the form of cylindrical hollow casing open from downwards and provided with elbow branch pipe arranged over central opening in lid of casing and also provided with pipe adjacent to inner cylindrical wall of casing and terminating by peripheral branch pipe over lid of casing. Large-diameter branch pipe is joined with elbow branch pipe. Bent tube whose end is directed opposite to flow of sucked air is arranged coaxially in large-diameter branch pipe. Other end of said bent tube passes through opening in wall of large-diameter branch pipe and it is connected with peripheral branch pipe.
EFFECT: enhanced efficiency of vacuum cleaner without complicating its design.
2 dwg
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