Blast nozzle for preventing the accumulation of static electric

Details Blast nozzle for preventing the accumulation of static electric Blast nozzle for preventing the accumulation of static electric

1994-07-20

1995-06-06

Kisliuk, Bruce M.

Abrading

Machine

Sandblast

451 90, 451102, 451 38, 239591, 361213, B24C 312

Patent

active

054217660

ABSTRACT:
A blast nozzle for accelerating a stream of abrasive particles to a surface for the cleaning thereof has a nozzle body formed of a non-electrically conductive material and is provided with an encapsulating coat to prevent breakage of the nozzle body. To prevent the accumulation of static electric charge during the blast cleaning operation, the exterior surface of the blast nozzle core is covered with an electrically conductive layer disposed between the nozzle body and the encapsulating coat, the nozzle further including an electrically conductive grounding pathway contacting the electrically conductive layer and passing through the encapsulating coat so that the electrically conductive layer can be bonded to ground to provide a pathway for removing the accumulated static charge and prevent periodic sparking.

REFERENCES:
patent: 3992178 (1976-11-01), Markoo et al.
patent: 4535576 (1985-08-01), Shukla et al.
patent: 4819837 (1989-04-01), Goforth
patent: 5108463 (1992-04-01), Buchanan

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