US 5,635,063 AGranted

Water treatment apparatus

OwnerRajan G. Rajan, Mathu Rajaninventors

Life of this patent

Estimating the term…

Abstract

Water treatment apparatus includes a two-piece housing and a stack of discrete filtering layers disposed within the housing including a layer of silver impregnated carbon, a layer of pentavalent iodine impregnated resins and at least one layer of a mixed bed activated resin. The apparatus is designed so that no water pressure need be applied to force the water through the apparatus, as gravity pulls the water down through the filtering layers.

Claims2

Dependent claims

A water treatment apparatus, the apparatus discharging potable water therefrom, the apparatus comprising:

(a) a first housing portion comprising:
(i) a top surface, the top surface having a water inlet formed therein;
(ii) a cylindrical sidewall integrally formed with the top surface and depending therefrom;
(iii) a bottom surface integral with the sidewall and extending therefrom, the bottom surface having a recess formed therein, the recess having a plurality of holes formed therein the holes defining means for providing a long dwell time;
(b) a second housing portion comprising:
a tapered cylindrical side wall having an upper edge and terminating at a housing outlet;
(c) means for detachably connecting the first housing portion and the second housing portion such that the recess of the first housing portion is housed within the second housing portion;
(d) a plurality of distinct particulate layers within the first housing portion, the layers comprising;
(i) a first layer comprising silver impregnated carbon;
(ii) a second layer comprising activated carbon;
(iii) a third layer comprising iodine resin;
(iv) a fourth layer comprising a mixed bed layer of cation and anion resins the second layer is disposed intermediate the first layer and the third layer, at least one of the plurality of distinct particulate layers defining means for killing microbes;
(e) a plurality of distinct particulate layers within the second housing portion, each of the plurality of distinct particulate layers defining means for removing organic, inorganic and radiological contaminants, at least one layer comprising a mixed bed of cation and anion exchange resin and catalytic carbon;
(f) at least one porous separator disposed between each of the plurality of distinct particulate layers in the first housing portion and the second housing portion, the at least one porous separator removes impurities from water and regulates water flow through each of the plurality of distinct particulate layers;
and
wherein water flows into the water inlet, through each of the distinct particulate layers and through the at least one porous separator and exits at the housing outlet.

13 more elements

Dependencies are inferred from the claim text.

patentgrep

Loading patent…

Abstract

A water treatment apparatus, the apparatus discharging potable water therefrom, the apparatus comprising:

(a) a first housing portion comprising:
(i) a top surface, the top surface having a water inlet formed therein;
(ii) a cylindrical sidewall integrally formed with the top surface and depending therefrom;
(iii) a bottom surface integral with the sidewall and extending therefrom, the bottom surface having a recess formed therein, the recess having a plurality of holes formed therein the holes defining means for providing a long dwell time;
(b) a second housing portion comprising:
a tapered cylindrical side wall having an upper edge and terminating at a housing outlet;
(c) means for detachably connecting the first housing portion and the second housing portion such that the recess of the first housing portion is housed within the second housing portion;
(d) a plurality of distinct particulate layers within the first housing portion, the layers comprising;
(i) a first layer comprising silver impregnated carbon;
(ii) a second layer comprising activated carbon;
(iii) a third layer comprising iodine resin;
(iv) a fourth layer comprising a mixed bed layer of cation and anion resins the second layer is disposed intermediate the first layer and the third layer, at least one of the plurality of distinct particulate layers defining means for killing microbes;
(e) a plurality of distinct particulate layers within the second housing portion, each of the plurality of distinct particulate layers defining means for removing organic, inorganic and radiological contaminants, at least one layer comprising a mixed bed of cation and anion exchange resin and catalytic carbon;
(f) at least one porous separator disposed between each of the plurality of distinct particulate layers in the first housing portion and the second housing portion, the at least one porous separator removes impurities from water and regulates water flow through each of the plurality of distinct particulate layers;
and
wherein water flows into the water inlet, through each of the distinct particulate layers and through the at least one porous separator and exits at the housing outlet.

13 more elements