초록 ▼

A low-cost portable water treatment device having a low-cost replaceable filter. The device includes a housing having an inlet, an outlet and a water filtration chamber. The replaceable filter is disposed in the water filtration chamber and comprises a disk having a compressible peripheral portion.

A low-cost portable water treatment device having a low-cost replaceable filter. The device includes a housing having an inlet, an outlet and a water filtration chamber. The replaceable filter is disposed in the water filtration chamber and comprises a disk having a compressible peripheral portion. The device includes a mechanism for compressing the peripheral portion to seal the filter and a mechanism for forcing contaminated water through the filter and out the outlet. The device also includes a storage compartment for a spare filter. Methods for manufacturing the low-cost filter and for sealing the filter in the device are disclosed.

대표청구항 ▼

[ What is claimed is:] [1.] A portable water treatment device having a replaceable filter, comprising:(a) a pump body having a plunger chamber for receiving contaminated water;(b) a cover releasably connected to said pump body to define a water filtration chamber, said cover having an outlet for pur

[ What is claimed is:] [1.] A portable water treatment device having a replaceable filter, comprising:(a) a pump body having a plunger chamber for receiving contaminated water;(b) a cover releasably connected to said pump body to define a water filtration chamber, said cover having an outlet for purified water;(c) a filter in said water filtration chamber comprising a disk having a compressible peripheral portion disposed between first and second annular sealing surfaces, said peripheral portion being compressed by said cover and pump body when said cover is connected to said pump body; and(d) a plunger received within said plunger chamber, for forcing contaminated water from said plunger chamber, into said water filtration chamber and through said filter to produce purified water exiting from said outlet of said cover.