Title:
FLUID TREATMENT APPARATUS AND METHOD OF USING SAME
Document Type and Number:
WIPO Patent Application WO/2014/041432
Kind Code:
A3
Abstract:
A portable or personal water filtration apparatus comprising upstream and downstream removable reservoirs and a back-washable filter interposed therebetween. The back-washable filter comprises an upstream housing and a downstream housing, inside of which are fitted a membrane cartridge and a slidable plunger. The downstream housing is rotatable relative to the upstream housing between two or more positions, including, for example, an open flow position, a closed flow position, and a back-wash position. In the back-wash position, the downstream housing and plunger are axially extendable relative to the upstream housing and membrane cartridge in order to obtain a charge of clean water in the plunger that may then be forced backward through the filter by returning the plunger to its starting position. This dislodges accumulated debris from the membrane and reverses the slowing of flow observed through repeated use of the filter.
Inventors:
PIERIK BRADLEY S (CA)
REILLY KEVIN T (CA)
PIERIK RONALD J (US)
REILLY KEVIN T (CA)
PIERIK RONALD J (US)
Application Number:
PCT/IB2013/002777
Publication Date:
June 05, 2014
Filing Date:
September 13, 2013
Export Citation:
Assignee:
TWOTHIRDS WATER INC (CA)
International Classes:
B01D27/08; B01D29/68
Domestic Patent References:
| WO2008101159A1 | 2008-08-21 |
Foreign References:
| US5364539A | 1994-11-15 |
Attorney, Agent or Firm:
NASSIF, Omar (Suite 1600 1 First Canadian Place,100 King Street Wes, Toronto Ontario M5X 1G5, CA)
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