Fail safe mechanism

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8403152
APP PUB NO 20070075025A1
SERIAL NO

11536918

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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In one embodiment, the present disclosure provides fail-safe mechanisms for final filters. The fail-safe mechanisms of the present disclosure include a prefilter that is essentially transparent or translucent to TOC contaminants and a microporous filter downstream from the prefilter that filters contaminants by means of size-exclusion, mechanical interception, coagulation, or a combination thereof, the filter being adapted to significantly reduce fluid flow and undergo blockage under a challenge by TOC contaminants. In another embodiment, the present disclosure provides a method of filtration that includes the steps of providing a microporous filter disposed upstream from a final filter, the microporous filter capable of filtering contaminants from a fluid by means of size-exclusion, mechanical interception, coagulation, or a combination thereof, and said filter being adapted to significantly reduce fluid flow and undergo blockage under a challenge by TOC contaminants, and filtering the fluid through the microporous filter

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Patent Owner(s)

Patent OwnerAddress
3M INNOVATIVE PROPERTIES COMPANYP O BOX 33427 ST PAUL MN 55133-3427
PUR WATER PURIFICATION PRODUCTS INCONE PROCTER & GAMBLE PLAZA CINCINNATI OH 45202

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bahm, Jeannine R Milford, US 1 5
Collias, Dimitris I Mason, US 12 701
Governal, Robert A Middletown, US 5 110
Hamlin, Thomas J Vernon, US 45 695
Patel, Hemang Middletown, US 21 857
Vidal, Guillermo M Cincinnati, US 1 5
Wesner, Keith East Hampton, US 4 33

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