초록 ▼

A drinking straw that purifies water by forced movement of water through the straw. The straw is composed of: 1) a filter plug made of a fibrous structure, the filter plug having sides, a first end, a second end, and a firmness sufficient to avoid collapse of the fibrous structure under a specified

A drinking straw that purifies water by forced movement of water through the straw. The straw is composed of: 1) a filter plug made of a fibrous structure, the filter plug having sides, a first end, a second end, and a firmness sufficient to avoid collapse of the fibrous structure under a specified pressure drop; 2) a water purification material integrated in the fibrous structure; and 3) a liquid impervious wrapper covering the sides of the filter plug, the wrapper defining openings at the first and second ends of the filter plug.

대표청구항 ▼

A device that purifies contaminated water by forced movement of water through the device, the device comprising: at least one filter plug composed of a fibrous structure, the filter plug having sides, a first end, a second end, and a firmness sufficient to avoid collapse of the fibrous nonwoven stru

A device that purifies contaminated water by forced movement of water through the device, the device comprising: at least one filter plug composed of a fibrous structure, the filter plug having sides, a first end, a second end, and a firmness sufficient to avoid collapse of the fibrous nonwoven structure under a pressure drop of from about 0.5 to about 22 cm water/cm filter plug length; a water purification material integrated in the fibrous structure; and a liquid impervious wrapper covering the sides of each filter plug, the wrapper defining openings at the first and second ends of the filter plug. A drinking straw that purifies contaminated water by forced movement of water through the straw, the straw comprising: a filter plug composed of a fibrous structure, the filter plug having sides, a first end, a second end, and a firmness sufficient to avoid collapse of the fibrous structure under a pressure drop of from about 0.5 to about 22 cm water/cm filter plug length; a water purification material integrated in the fibrous structure; and a liquid impervious wrapper covering the sides of the filter plug, the wrapper defining openings at the first and second ends of the filter plug.