Abrading – Abrading process – Utilizing fluent abradant
Patent
1996-12-23
1997-10-28
Eley, Timothy V.
Abrading
Abrading process
Utilizing fluent abradant
451 38, B24C 312, B24C 100
Patent
active
056812060
ABSTRACT:
In a method of accelerating and pressurizing a fluidized stream of particulate material, e.g. for blast cleaning by ice particles, the stream flows through a constriction in a flow passage. A flow of blast medium is discharged from a blast nozzle at supersonic speed into the fluidized stream so as to form within the fluidized stream a flow front which is impenetrable by the fluidized stream and which co-operates with the constriction to form an effective nozzle for accelerating the fluidized stream. Grounding is provided controlling electrostatic charges for either better work effect or neutralization in unwanted or hazardous conditions, and safety pressure relief, blast intensity control, articulation and changement of final nozzles for effective operation are also provided.
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Eley Timothy V.
Long Brian M.
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