Apparatus for blast cleaning surfaces disposed at angles within

Details Apparatus for blast cleaning surfaces disposed at angles within Apparatus for blast cleaning surfaces disposed at angles within

1993-11-10

1995-08-15

Rachuba, Maurina T.

Abrading

Machine

Sandblast

451 92, 451 95, 451100, B24C 306

Patent

active

054414431

ABSTRACT:
A blast cleaning machine which gravity feeds abrasive material when blasting at positions from angularly upward to angularly downward. The machine includes a housing, a blast assembly, a motor for rotatably driving the blast assembly and a hopper. The housing has a blast corridor, a return corridor and a blast opening communicating with the blast corridor and the return corridor. The blast assembly receives abrasive material from the hopper and propels the abrasive material through the blast corridor and blast opening against the surface to be blast cleaned. The hopper has straight walls which are substantially parallel with the blast opening for gravity feeding abrasive material straight into the blast assembly. The walls of the hopper provide effective gravity feeding of abrasive material to the blast assembly when the machine is blasting anywhere between a 45-degree angle upward and a 45-degree downward.

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patent: 5204084 (1993-04-01), Roberts

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