Liquid purification or separation – With repair or assembling means – Sliding or rolling on guide means
Patent
1975-01-06
1976-10-05
Granger, Theodore A.
Liquid purification or separation
With repair or assembling means
Sliding or rolling on guide means
B01D 2708
Patent
active
039843254
ABSTRACT:
A filter device comprising a cylindrical tubular housing with a plurality of cartridge filters slidably disposed within a central bore of the housing. Each cartridge filter includes a tubular filter element disposed between a front end cap and a back end cap of the cartridge filter. A fluid inlet formed through the housing of the filter assembly communicates with the outer periphery of the filter element while the internal surface of the filter element communicates with an outlet formed in the housing via a bore formed through the front end cap of the next adjacent cartridge filter. Both the front end cap and the back end cap form a sealing engagement with the central bore of the housing so that as the filter element becomes dirty or clogged, a clean cartridge filter may be axially positioned in the housing to filter the fluid flow between the inlet and outlet without disrupting the fluid flow rate through the filter assembly. The dirty cartridge filter, which is no longer in fluid communication with either the inlet or outlet in the housing, likewise may be removed and cleaned or discarded without interrupting the fluid flow through the filter assembly.
REFERENCES:
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patent: 3286838 (1966-11-01), Jones
patent: 3390778 (1968-07-01), Uhen
patent: 3645401 (1972-02-01), Roberts
patent: 3815746 (1974-06-01), Ward
patent: 3870636 (1975-03-01), Schettler
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