US 6,602,406 B1 · Static filter pitcher

Abstract

A pitcher or carafe housing is provided that has a raw water reservoir. A high performance filter receives raw water from a lower portion of the reservoir. The water is preferably received at or travels through a water entry tube to the back and bottom of the filter. In about 1-3 minutes the water percolates through the filter element, until it reaches a water exit port. A pouring chamber may be provided at the side of the pitcher for receiving the water from the water exit port, so that the water will continue to be treated and flow up into the pouring chamber until the water level equalizes in height in the reservoir and the pouring chamber. The filter and its housing may be placed into and removed from the inside of the raw water reservoir, or the filer housing may be side loaded. The filter media may be a polyester non-woven mat with a weight of 4-7 oz./yd.2 impregnated with carbon or zeolite and subject to compression between about 25-75% (e.g. about 50%).

Claims24

Dependent claims

A water filtration assembly comprising:

a first housing defining a raw water reservoir and having upper and lower end portions;
a raw water inlet opening defined in said upper end portion of said first housing to allow raw water to flow therethrough into said raw water reservoir;
a closure structure operatively connected to said upper end portion for selectively closing said inlet opening of said first housing;
a filter housing having a raw water inlet port in operative communication with said raw water reservoir for receiving raw water from said lower portion of said first housing, and an outlet port for filtered water;
and
a treatment media disposed in said filter housing and having active sites for treating water flowing from said raw water reservoir into said filter housing through said inlet port, said raw water inlet port guiding raw water to a back and bottom of said treatment media, wherein said treatment media comprises a static treatment media bound to a substrate such that migration to said active sites is accomplished through diffusion.

3 more elements

Dependencies are inferred from the claim text.

Static filter pitcher

Life of this patent

Static filter pitcher

Life of this patent

Abstract

Claims24