Apparatus for the production of filters by electrostatic fiber s

Details Apparatus for the production of filters by electrostatic fiber s Apparatus for the production of filters by electrostatic fiber s

1974-05-28

1976-11-30

Stein, Mervin

Coating apparatus

With means to apply electrical and/or radiant energy to work...

Electrostatic and/or electromagnetic attraction or...

118638, 264 10, 427 31, B05C 502

Patent

active

039942589

ABSTRACT:
In a process for the production of fiber filters, spinning solutions are electrostatically sprayed and deposited continuously onto a gas-permeable band-form support. The band-form support travels successively through several spray zones and is always guided from one spray zone into the next below the spray electrodes. Row arrangements of rotating rings dipping into the spinning liquid are used as the spray electrodes, the rings of one row lying in one plane.

REFERENCES:
patent: 1975504 (1934-10-01), Formhals
patent: 2680079 (1954-06-01), Huebner
patent: 2777784 (1957-01-01), Miller
patent: 2810426 (1957-10-01), Till et al.
patent: 3406660 (1968-10-01), Simm
patent: 3475198 (1969-10-01), Drum
patent: 3490115 (1970-01-01), Owens et al.
Def. Pub. 665476 Morrison et al. Sept. 5, 1967.

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