Particulate filtering

Details Particulate filtering Particulate filtering

1977-10-03

1980-02-12

Lacey, David L.

Gas separation

Flexible or collapsible bag type

Seaming, reinforcing or bag structure

55487, 55DIG2, 210505, B01D 4602

Patent

active

041881974

ABSTRACT:
A filter bag for dry copiers, i.e. copiers which employ particulate toner material. The bag comprises a filter element and a protective cover of porous non-woven material which imparts negligible resistance to air flow.

REFERENCES:
patent: 2692654 (1954-10-01), Pryor
patent: 2804166 (1957-08-01), Stevens et al.
patent: 2888095 (1959-05-01), Perrini et al.
patent: 3208205 (1965-09-01), Harms et al.
patent: 3251495 (1966-05-01), Till et al.
patent: 3273321 (1966-09-01), Bauder et al.
patent: 3307332 (1967-03-01), Grace et al.
patent: 3570224 (1971-03-01), Clemens
patent: 3630700 (1971-12-01), Hammel
For Compressed Air 400,000 Times Cleaner Than the Air We Breathe, Filtration & Separation, May/Jun., 1973, p. 301.
It's Paper--Sheet-fabric--It's Spun Bonded, Modern Plastic, Apr. 1968, pp. 93-96.

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