초록 ▼

The disclosure describes a filter assembly comprising a housing having a liquid inlet and a liquid outlet and defining a liquid flow path between the inlet and the outlet; a generally cylindrical filter arrangement disposed within the housing in the liquid flow path and comprising a cylindrically sh

The disclosure describes a filter assembly comprising a housing having a liquid inlet and a liquid outlet and defining a liquid flow path between the inlet and the outlet; a generally cylindrical filter arrangement disposed within the housing in the liquid flow path and comprising a cylindrically shaped porous means for removing particulate contaminants from the liquid, a cylindrically shaped sorbent-containing means for removing chemical contaminants from the liquid, and a cylindrically shaped microporous means for removing microbiological contaminants from the liquid; and means for directing the liquid flow radially through the filter arrangement.

대표청구항 ▼

A filter cartridge for removing contaminants from a liquid, said filter cartridge comprising a housing which has a top wall, a bottom wall, a generally cylindrical side wall extending between the top wall and the bottom wall, and an inlet and an outlet defining a liquid flow path through the housing

A filter cartridge for removing contaminants from a liquid, said filter cartridge comprising a housing which has a top wall, a bottom wall, a generally cylindrical side wall extending between the top wall and the bottom wall, and an inlet and an outlet defining a liquid flow path through the housing and a hollow, generally cylindrical filter arrangement which is disposed within the housing in the liquid flow path and spaced from the side wall and which includes a cylindrically shaped porous means for removing particulate contaminants from the liquid, the particulate removing means comprising a microfibrous filter having an upstream portion and a downstream portion in which the upstream portion has a larger pore size than the downstream portion, a cylindrically shaped sorbent containing means disposed coaxially within and downstream from the particulate removing means for removing chemical contaminants from the liquid, the chemical contaminant removing means comprising a bed of immobilized sorbent particles, a cylindrically shaped microporous means disposed coaxially within and downstream from the chemical contaminant removing means for removing microbiological contaminants from the liquid, said microbiological contaminant removing means comprising a microporous membrane having an absolute pore rating in the range of from about 0.02 micrometer to about 0.5 micrometer and means for directing the liquid flow radially through the filter arrangement, said directing means including a first impervious end means sealingly engaging one end of the filter arrangement and a second impervious end means sealingly engaging the other end of the filter arrangement, said second end means including a central aperture means for allowing fluid to flow through the filter arrangement.