Air filtration media

Details Air filtration media Air filtration media

1995-06-08

1996-12-31

Bushey, C. Scott

Gas separation

With means securing or retaining separating media

Discrete fibrous or particulate solids

55524, 55527, B01D 4600

Patent

active

055889760

ABSTRACT:
A fiber glass air filtration media includes a blanket of glass fibers with about 25% to 35% by weight of the glass fibers being fine glass fibers having an average diameter of less than 3.5 microns and about 65% to 75% by weight of the glass fibers being coarse glass fibers having an average diameter of more than 3.5 microns. The fine and coarse glass fibers are randomly intermingled throughout the blanket. The blanket is formed by producing the fine glass fibers on a first set of fiber generators and the coarse glass fibers on a second set of fiber generators. The fiber generators are laterally aligned across the width of and direct gaseous streams of the glass fibers at a moving collection surface where the blanket is formed. The fiber generators of the first set alternate with the fiber generators of the second set and the glass fibers produced by the two sets of fiber generators are mixed together before being deposited on the collection surface.

REFERENCES:
patent: 2579984 (1951-12-01), Trowbridge
patent: 2751962 (1956-06-01), Drummond
patent: 3003581 (1961-10-01), Greason
patent: 3594993 (1971-07-01), Heyse
patent: 3972694 (1976-08-01), Head
patent: 4765812 (1988-08-01), Homonoff et al.
patent: 4917714 (1990-04-01), Kinsley, Jr.
patent: 5389121 (1995-02-01), Pfeffer

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