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:
Oct. 07, 2014
Filed:
Dec. 18, 2009
Applicants:
Daniel Frauchiger, Prilly, CH;
Roelie Bottema, LX Zuidhorn, NL;
Mikkel Vestergaard Frandsen, Lausanne, CH;
Inventors:
Daniel Frauchiger, Prilly, CH;
Roelie Bottema, LX Zuidhorn, NL;
Mikkel Vestergaard Frandsen, Lausanne, CH;
Assignee:
LifeStraw SA, Lausanne, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 61/00 (2006.01); B01D 63/00 (2006.01); A47G 19/22 (2006.01); C02F 1/44 (2006.01); A47G 21/18 (2006.01); B01D 65/02 (2006.01); B01D 63/02 (2006.01); C02F 1/00 (2006.01); C02F 1/68 (2006.01); C02F 1/50 (2006.01);
U.S. Cl.
CPC ...
C02F 1/444 (2013.01); B01D 2321/04 (2013.01); A47G 21/188 (2013.01); B01D 65/02 (2013.01); B01D 2313/12 (2013.01); B01D 2311/04 (2013.01); C02F 1/688 (2013.01); C02F 1/50 (2013.01); C02F 2303/24 (2013.01); B01D 2313/24 (2013.01); B01D 63/024 (2013.01); C02F 1/002 (2013.01); C02F 2303/16 (2013.01); C02F 2303/04 (2013.01);
Abstract
A liquid filtration method and device, for example a drinking straw with a mouthpiece, and a bundle of hollow fibres. The open ends of the fibres are embedded in a base and provided in a compartment between the base and a liquid outlet. Water or other liquid flows into the inner volume of the hollow fibres and from there through their filtering membrane walls and into the compartment before the liquid flows out through the liquid outlet, for example the mouthpiece.