Molded panel filter

Details Molded panel filter Molded panel filter

1986-10-07

1987-10-20

Nozick, Bernard

Gas separation

Two or more separators

Plies or layers of different characteristics or orientation

55521, 55524, 210491, 2104935, 210508, B01D 4600

Patent

active

047011971

ABSTRACT:
A fluid filter element comprises a first filtering medium and a second filtering medium. The first filtering medium includes a nonwoven batt having a marginal edge portion circumscribing the main body portion of the batt in which the fibers are stiffened to provide a support and sealing structure. The second filtering medium includes a nonwoven batt which has been welded into a convoluted drape and which has a circumferential edge portion which provides a supported and sealing structure. The circumferential edge portion is sealed to the marginal edge portion when the fluid filter element is assembled.

REFERENCES:
patent: 2521984 (1950-09-01), Lang
patent: 2888095 (1959-05-01), Perrini et al.
patent: 2928765 (1960-03-01), Kurjan
patent: 3384241 (1968-05-01), Nostrand
patent: 3400520 (1968-09-01), Sakurai
patent: 3552103 (1971-01-01), Smith
patent: 3681898 (1972-08-01), Hopkins et al.
patent: 4164400 (1979-08-01), Wald
patent: 4600420 (1986-07-01), Wydeven
patent: 4629474 (1986-12-01), Thornton
patent: 4636231 (1987-01-01), Thornton et al.

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