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Title: Centrifugal Blasting Apparatus
Author: Urakami, Fukashi
Source: US Patent 5,205,085
Publication year 1993
Document number: 1993028
Number of pages: 13
Abstract:
Disclosed is an improved centrifugal blasting apparatus for the blast cleaning or shot peening treatment of a selected surfact of an object to be treated by throwing
pulverixed abrasive material onto the surface. Its wheel casing has an elongated slot to permit pulverized abrasive material to pass there through and scatter through the
air with centrifugal force, which is given by the blased of the rotary blade wheel. The inlet suction conduit extends from the blasting cabinet to the wheel casing, and the
outlet suction conduit extends from the wheel casing to an associated vacuum pump. The abrasive material storage or collector is provided in the inlet suction conduit, thus
making up an abrasive material circulating loop. The apparatus uses no force of gravity to supply pulverized abrasive material to its rotary blade wheel, and therefore, the
positioning of the rotary blade wheel is not limited with regard to availableness of the force of gravity. It requires neither air-tight ejector nor screw conveyers or
bucket elevators, and accordingly its weight and sixe can be reduced substantially.
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