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US 7,604,737 B2Granted
Water filter device for use with individual containers
AssigneeAcuity/Sparkle, Ltd. (Cayman)
InventorsMichael H. Francisco, Subhash Mehra, Sumeet Mehra
Life of this patent
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Abstract
An apparatus for producing purified drinking water. The apparatus comprises a container top including an ultrafiltration insert. The container top attaches to the opening of a liquid holding container, such that liquid from the container passes through a filter. The device includes a mechanism for back flushing or cleaning the filter. The resulting water is substantially pure, being free of bacteria, to make it safe for drinking.
Claims5
A device for water purification, comprising:
- a housing;
- a fastener at a first end of said housing, said fastener allowing said housing to be attached onto a water bottle;
- a first opening at said first end of said housing;
- a second opening at a second end of said housing;
- an ultrafiltration membrane contained within said housing and positioned such that water passing from said first end to said second end must pass through said ultrafiltration membrane;
- and
- a back flushing mechanism located within the housing configured to back flush said ultrafiltration membrane.
4 more elements
Dependencies are inferred from the claim text.