Device for the powder-dusting of moving objects, particularly fl

Details Device for the powder-dusting of moving objects, particularly fl Device for the powder-dusting of moving objects, particularly fl

1984-08-21

1986-07-08

Peters, Jr., Joseph F.

Fluid sprinkling, spraying, and diffusing

Electrostatic type

Having plural exit openings

239295, 239690, 239707, B05B 502

Patent

active

045988706

ABSTRACT:
The invention relates to a device for the powder-dusting of moving objects, particularly flat substrates in the form of webs and sheets of paper, plastic or textile with a nozzle housing made of electrically insulating material, with at least one nozzle provided on the housing for releasing a powder air stream laden with dusting powder and with metallic electrodes and counter-electrodes disposed on the housing for producing an electrical high-voltage field. To obtain a powder air stream with powder particles as neutral as possible, it is envisaged that at least one electrode and a counter-electrode cooperating with the latter are disposed on the outside of the housing in the vicinity of the nozzle whereby an electrical high AC voltage is applied to the electrode and counter-electrode, whereby, after being released from the nozzle, the powder air stream penetrates the thus produced high AC voltage field on the outside of the housing.

REFERENCES:
patent: 3059613 (1962-10-01), Nakaya
patent: 3393662 (1968-07-01), Blackwell
patent: 3937401 (1976-02-01), Luderer et al.
patent: 4055300 (1977-10-01), Binoche
patent: 4066041 (1978-01-01), Buschor et al.
patent: 4114810 (1978-09-01), Masuda
patent: 4440349 (1984-04-01), Sickles et al.

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