Filter cartridge with end densification ring

Details Filter cartridge with end densification ring Filter cartridge with end densification ring

1989-04-03

1992-07-14

Dawson, Robert A.

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

2104935, 55500, 55521, B01D 2706

Patent

active

051300230

ABSTRACT:
A filter cartridge comprising a pleated, cylindrical filter element is provided with an end densification ring to cause the ends of the pleats to pack together more tightly. In this configuration they can be more easily and securely sealed in an end cap closing off an end of the filter cartridge.

REFERENCES:
patent: 2801009 (1957-07-01), Bowers
patent: 3241680 (1966-03-01), Humbert
patent: 3354012 (1967-11-01), Forman
patent: 3397793 (1968-08-01), MacDonnell
patent: 3865919 (1975-02-01), Pall et al.
patent: 3867294 (1975-02-01), Pall et al.
patent: 4154688 (1979-05-01), Pall
patent: 4392958 (1983-07-01), Ganzi et al.
patent: 4402830 (1983-09-01), Pall
patent: 4522719 (1985-06-01), Kuwajima et al.
patent: 4861479 (1989-08-01), Solzer
patent: 4929354 (1990-05-01), Meyering et al.

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