Filter bag having a rim intermittently bonded to a porous portio

Details Filter bag having a rim intermittently bonded to a porous portio Filter bag having a rim intermittently bonded to a porous portio

1996-07-30

1997-07-01

Walker, W. L.

Liquid purification or separation

Filter

Within flow line or flow line connected close casing

210452, 210453, 55379, 55381, 55382, B01D 2927

Patent

active

056434510

ABSTRACT:
A liquid filter includes a housing and a filtering bag supported within the housing to remove soiled matter from processed fluids being filtered. The filter bag includes a rim and a pouch made out of a flexible material which is secured to the rim by a series of circumferencially spaced intermitted bonds. The bonds capture horizontal fibers of the filter bag as well as vertical fibers, thus resulting in a stronger bond and making it less likely a rupture will occur at the bond when stress is applied to the filtering bag, such as occurs when the bag is being removed from the housing during bag change over.

REFERENCES:
patent: 4159187 (1979-06-01), Schuler et al.
patent: 4268390 (1981-05-01), Cunningham
patent: 4460468 (1984-07-01), Morgan
patent: 4921606 (1990-05-01), Goldman
patent: 5188731 (1993-02-01), LaPoint, Jr.
patent: 5437910 (1995-08-01), Raabe et al.

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