Absorbent filter paper stick
AssigneeBrandeis University
InventorDaniel Perlman
Life of this patent
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Abstract
An essentially homogeneous, water-resistant, water-absorbent rod, containing a cohesive spiral winding of water-resistant, water-absorbent sheet material, in which the rod can absorb at least 50% by weight of water when placed in water at 23.degree. C. for one minute. Methods for fabricating and using this rod are also described.
Claims17
An essentially homogeneous, water-resistant, water-absorbent rod comprising a cohesive spiral winding of water-resistant, water-absorbent sheet material, wherein said rod can absorb at least 50% by weight of water when placed in water at 23.degree. C. for one minute.
An essentially homogeneous, water-resistant, water absorbent rod comprising a spiral winding of water-resistant, water-absorbent sheet material, and a water-resistant adhesive agent which prevents unwinding of said sheet material during sustained immersion of said rod in water, wherein said rod can absorb at least 50% by weight of water when placed in water at 23.degree. C. for one minute.
Dependencies are inferred from the claim text.