Filter adapter and disposable filter

Details Filter adapter and disposable filter Filter adapter and disposable filter

1994-11-15

1997-01-14

Drodge, Joseph W.

Liquid purification or separation

With repair or assembling means

210237, 210356, 210450, 21049701, 376260, 376313, B01D 2750

Patent

active

055935788

ABSTRACT:
A filter adapter and filter cartridge for a filter assembly for removing particulate matter from an aqueous flow by means of a filter vessel having a support housing, a removable top, an input port for the aqueous flow, an exit port for the aqueous flow and an internal seal. The filter assembly includes a filter adapter configured similarly to the housing and sized to be substantially entirely received within the housing and sealingly engage the internal seal of the housing. A filter cartridge is configured similarly to the filter adapter and is sized to be substantially entirely received within the filter adapter and to simultaneously engage the filter vessel top and sealingly engage the filter adapter outlet. A biasing spring is located between the filter cartridge and the filter adapter. Securing the filter vessel top to the filter vessel housing causes the filter cartridge to simultaneously compress the biasing spring in the filter adapter, form a seal with the filter adapter outlet, and form a seal between the filter adapter and the internal seal of the filter vessel housing, whereby the filter adapter may be installed in the filter vessel for an extended period and repeatedly during the extended period, the filter cartridge may be installed within the filter adapter to seal the cartridge to the filter adapter and the filter adapter to the filter vessel, aqueous flow may be directed through the filter medium, and the cartridge may be removed and discarded.

REFERENCES:
patent: 3890233 (1975-06-01), Gishel
patent: 4572710 (1986-02-01), Stock et al.
patent: 4738777 (1988-04-01), Parshall
patent: 4756876 (1988-07-01), Dagard et al.
patent: 4818398 (1989-04-01), Lott et al.
patent: 4883588 (1989-11-01), Primavera et al.
patent: 5017330 (1991-05-01), Hurdiel
patent: 5379330 (1995-01-01), Lovell et al.
patent: 5476585 (1995-12-01), Mills
patent: 5478469 (1995-12-01), Bryan et al.

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