Environmentally friendly filter cartridge

Details Environmentally friendly filter cartridge Environmentally friendly filter cartridge

1995-12-20

1997-11-11

Walker, W. L.

Liquid purification or separation

Filter

Within flow line or flow line connected close casing

2104932, 2104935, 55498, 55502, 55514, 55521, 55524, B01D 2708

Patent

active

056859856

ABSTRACT:
A filter cartridge for use in a filter system, in which the cartridge has no structural metal or plastic parts and is adapted for environmentally acceptable disposal. A pleated paper filter media is formed into a cylinder, and potted end caps at the axial ends of the cylinder hold the shape of the filter. Sealing gaskets are associated with the end caps. At least one side has a radial seal formed at the outer periphery of the filter cartridge to protect the associated end cap from higher a pressure region found at the outer periphery. The other axial end can have a similar radial filter in some applications, or in other applications, where flow at that end of the filter is not desired, can utilize an axial seal specially configured to protect the associated end cap from higher pressure at the outer periphery. Maintenance of lower pressure at the respective end caps places any axial loads on the filter in tension, and thereby prevents the application of axial crushing loads on the filter cartridge.

REFERENCES:
patent: 5082476 (1992-01-01), Kahlbaugh et al.
patent: 5250179 (1993-10-01), Spearman
patent: 5389260 (1995-02-01), Hemp et al.
patent: 5399264 (1995-03-01), Pulek et al.
patent: 5484466 (1996-01-01), Brown et al.
patent: 5556542 (1996-09-01), Berman et al.

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