Water filter materials and water filters containing a mixture of microporous and mesoporous carbon particles

US7712613B2 · kind B2 · utility

Assignee

• PUR Water Purification Products, Inc. · US

Inventors

• Jeannine Rebecca Bahm · Milford, US
• Andrew Thomas Pearks · Cincinnati, US
• Guillermo Matias Vidal · Cincinnati, US
• Dimitris Ioannis Collias · Mason, US
• Michael Donovan Mitchell · Cincinnati, US
• Robert Astle · Middlefield, US
• Katharine L. K. Faye · Moodus, US
• Robert Andrew Governal · Middletown, US
• Thomas J. Hamlin · Vernon, US
• Rebecca A. Lucht · Rocky Hill, US
• Hemang Patel · Middletown, US

Key dates

• Filing date: Sep 16, 2008
• Grant date: May 11, 2010
• Expiry date: Sep 16, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C02F2201/006
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A filter and filter material for providing or treating potable water is provided. The filter includes a housing having an inlet and an outlet, a filter material disposed within the housing, the filter material formed at least in part from a mixture of a plurality of mesoporous and microporous activated carbon particles. Preferably, at least some of the mesoporous activated carbon filter particles are coated with a cationic polymer, and even more preferably, at least some of the particles are coated with a cationic polymer and silver or a silver containing material. Kits comprising filters and information relating to the reduction, killing or removal of bacteria, viruses, microbials, and TTHM are also provided.