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. 14, 2006
Filed:
Jan. 23, 2004
Ralf Peters, Bergisch-Gladbach, DE;
Gert Blankenstein, Dortmund, DE;
Holger Bartos, Dortmund, DE;
Claus Marquordt, Dortmund, DE;
Ralf Peters, Bergisch-Gladbach, DE;
Gert Blankenstein, Dortmund, DE;
Holger Bartos, Dortmund, DE;
Claus Marquordt, Dortmund, DE;
Boehringer Ingelheim Microparts GmbH, Dortmund, DE;
Abstract
The invention relates to a microfluidic switch for stopping a liquid flow during a time interval with the following features: the switch has at least one first channel and at least one second channel; the first channel and the second channel have a common end area; the first channel in the end area has a stopping mechanism for stopping of a liquid flow flowing in the first channel; the stopping mechanism can be controlled by means of a liquid flow flowing in the second channel for continuing the liquid flow in the first channel. Transport in the first and the second channel takes place advantageously by the capillarity acting in the channel.