초록 ▼

A water treatment or filtration unit is in two parts, a base and a cartridge. The base includes three ports, one of which may be selectively plugged or otherwise disabled. The cartridge contains the water treating material and is screwed into a socket in the base. Openings in the cartridge are then

A water treatment or filtration unit is in two parts, a base and a cartridge. The base includes three ports, one of which may be selectively plugged or otherwise disabled. The cartridge contains the water treating material and is screwed into a socket in the base. Openings in the cartridge are then aligned with openings in the base to allow water to pass therethrough. Cartridges may be readily exchanged by simply unscrewing from, and screwing into, the base.

대표청구항 ▼

A water treatment unit which comprises: a base member m the form of a housing having an exterior and defining an interior socket for receiving the end of a water treating cartridge, and first, second, and third water passages extending between said exterior and said socket; an elongated water treati

A water treatment unit which comprises: a base member m the form of a housing having an exterior and defining an interior socket for receiving the end of a water treating cartridge, and first, second, and third water passages extending between said exterior and said socket; an elongated water treating cartridge enclosing a water treating material and having a closed first end and a second end insertable into said socket, said second end further defining a water inlet opening and a water outlet opening, one of said openings being alignable with said first water passage and the other of said openings being alignable with said second and third passages when so inserted; means for retaining said second end in said socket; and means for selectively closing one of said second and third passages to water flow.