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Back to the List of the Granted Patents                                                Click here to download AP2025 PDF

(11)    Patent No :    AP 2025   
(21)    Application No :    AP/P/2003/002784   
(22)    Filing Date :    15.10.2001   
(24)    Date of Grant &    12.08.2009   
           
(45)    Publication :

(30)  Priority Data       
(33) Country    (31) Number    (32) Date
US    09/692,203    20.10.2000

(84)    Designated State

GM    GH    KE   LS   MW  MZ   SL   SD   SZ
T Z    UG    ZW
 

(73) Applicant(s)

HARVEY Anthony Reid, c/o Catherine Nash, World Food Programme, GPO Box 2488, Dhaka 1000,
Bangladesh

(72) Inventors

HARVEY Anthony Reid, Bangladesh

(74) Representative

FISHER CORMACK & BOTHA
 

(51)  International  Classification   C02F 1/00 (2006.01)    C04B 38/00 (2006.01)


(54)    Title

Porous grog composition, water purification device containing the porous grog and method for making same

(57)    Abstract

A porous grog with a body composition of water, clay and combustible material. Further, an earthenware water purification filter (5) utilizing the porous grog in the body composition of the filter. A water purification system (70) incorporating the filter, the water purification system capable of removing about 99% of all particles not less than 1.0 micron is size.

(56)    Documents Cited :    US 5 618 762 A   US 3 878 104 A

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