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:
Jan. 01, 2008
Filed:
May. 26, 2003
Patrick Wagler, Boppard, DE;
John Simpson Mccaskill, Bonn, DE;
Tobias Foster, Köln, DE;
ProtoLife Srl., Marghera, Venezia, IT;
Abstract
In the method for mixing-free transport of homogeneous liquids in microchannels a heterogeneous liquid flow () is autonomously divided into portions, transported over a distance and then autonomously recombined. When the flow is divided into portions, individual volumes of a second liquid (), which may be but must not be homogeneous, are introduced between volume fractions lying one behind the other of the heterogeneous liquid flow (). While the volume fractions of the heterogeneous liquid () that lye close to one another would mix with each other without this measure being taken, separation of the individual volume fractions allows these volume fractions, and thus the heterogeneous liquid (), to be transported over large distances without any mixing occurring. Treatment of the volume fractions of the heterogeneous liquid () requires separation of the liquid flow () of alternating volume fractions of the two liquids () such that again two flows are produced, one of which being the heterogeneous starting liquid and the other being the second liquid. Since both processes can take place autonomously by self-organization of the phases, an overall solution for the mixing-free transport of a heterogeneous liquid without employment of expensive fractionating apparatus can be achieved.