The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 1997
Filed:
Apr. 12, 1996
Applicant:
Inventors:
James Dennis Cotton, Marietta, GA (US);
Dennis Stein Everhart, Alpharetta, GA (US);
Elizabeth Deibler Gadsby, Mareitta, GA (US);
Assignee:
Kimberly-Clark Worldwide, Inc., Neenah, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61J / ; B01D / ; B01D / ;
U.S. Cl.
CPC ...
4283055 ; 210282 ; 210289 ; 210484 ; 2104972 ; 210501 ; 2105021 ; 210504 ; 210505 ; 239 33 ; 42831111 ;
Abstract
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.