초록 ▼

The present invention discloses a filter system for the filtration of residential tap water for drinking. The device of the present invention removes impurities including organics, heavy metals, and nitrates, and it provides a removable filter which can be readily changed without disconnecting the w

The present invention discloses a filter system for the filtration of residential tap water for drinking. The device of the present invention removes impurities including organics, heavy metals, and nitrates, and it provides a removable filter which can be readily changed without disconnecting the water lines. The filter in its simplest form has a central filter cartridge which is connected to a top cap and a bottom cap. The top cap and bottom cap have a water inlet and outlet, respectively. The central filter cartridge in turn has a conduit, which is terminated with restrainers, forming a central cavity in the central filter cartridge. The filter cartridge is filled with granular material for filtering. Particulate filters are positioned between the granular material and the restrainers. In one preferred embodiment the particulate matter forms a bed of a silver impregnated activated charcoal, a bed of a cation resin, and a bed of an anion resin. The activated charcoal is in closest proximity to the water inlet.

대표청구항 ▼

A drinking water filtration system comprising: a top cap having a water inlet and a top cap recess contained therein; a bottom cap having a water outlet and a bottom cap recess contained therein; a central filter cartridge further comprising, a conduit having a top side rim forming a top end of said

A drinking water filtration system comprising: a top cap having a water inlet and a top cap recess contained therein; a bottom cap having a water outlet and a bottom cap recess contained therein; a central filter cartridge further comprising, a conduit having a top side rim forming a top end of said conduit and a bottom side rim forming a bottom end of said conduit, said top side rim being configured to slidably engage said top cap recess and said bottom side rim being configured to slidably engage said bottom cap recess; a top restrainer having passages therethrough engaging said top end and terminating said top end of said conduit; a bottom restrainer having passages therethrough engaging said bottom end and terminating said bottom end of said conduit; a water filtration medium; said conduit, said top restrainer, and said bottom restrainer defining a central cavity for holding said water filtration medium; tie rods spanning said central filter cartridge coupling said top cap to said bottom cap; a first sealing means between said top cap recess and said top side rim; and a second sealing means between said bottom cap recess and said bottom side rim.