Injector device for feeding coating powder

Details Injector device for feeding coating powder Injector device for feeding coating powder

1995-12-18

1997-07-08

Hoge, Gary C.

Conveyors: fluid current

Intake to fluid current conveyor

Upstream of suction source

B65G 5314

Patent

active

056453809

ABSTRACT:
An air injector for a powder feeder in a powder coating system having a powder barrier with a filter element of microporous material. The microporous material is permeable to air, but not to the coating powder. The powder barrier prevents a penetration of coating powder into the air feed path in a direction opposite to the air flow direction. The powder barrier permits a quick color change without the need to disassemble the air injector for cleaning.

REFERENCES:
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patent: 4730647 (1988-03-01), Mulder
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patent: 5037247 (1991-08-01), Kaiser et al.
patent: 5205489 (1993-04-01), Milner
patent: 5222529 (1993-06-01), Zoltan et al.
patent: 5271695 (1993-12-01), Bischof et al.

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