Disposable two-ply filter

Details Disposable two-ply filter Disposable two-ply filter

1990-02-15

1992-01-14

Thibodeau, Paul J.

Gas separation

Flexible or collapsible bag type

Seaming, reinforcing or bag structure

55473, 428 343, 428 352, 428296, 428903, B01D 4602

Patent

active

050807021

ABSTRACT:
A disposable two-ply vacuum cleaner bag comprises a highly air permeable inner filter ply of randomly intertangled, discontinuous microfibers of synthetic material and a conventional outer ply of air permeable material.

REFERENCES:
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patent: 3990872 (1976-11-01), Cullen
patent: 4011067 (1977-03-01), Carey, Jr.
patent: 4426417 (1984-01-01), Meitner et al.
patent: 4589894 (1986-05-01), Gin et al.
patent: 4784892 (1988-11-01), Storey et al.
patent: 4816328 (1989-03-01), Saville et al.

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