Patent · US Expired

Structures for precisely controlled transport of fluids

US6776965B2 · kind B2 · utility

36Cited by

7References

5Claims

0Family size

Assignee

Steag Microparts · DE

Inventors

Raimund Wyzgol · Dortmund, DE
Holger Bartos · Dortmund, DE
Ralf-Peter Peters · Bensberg, DE
Christian Schön · Dortmund, DE
Dirk Osterloh · Arlington, US
Gert Blankenstein · Arlington, US

Key dates

Filing date	Oct 25, 2001
Grant date	Aug 17, 2004
Priority date	—
Expiry date	Apr 11, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T436/2575
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention relates to devices for efficient transport, transfer and movement of fluids. In particular, the invention provides fluidic micro-structures for controlled transport and movement of liquids in devices for analytical and other purposes. Devices of the invention include one or more features that can enhance performance of the fluid transfer, referred to as a pre-shooter stop, a butterfly structure, a cascade structure, a waste chamber inlet, a capillary driven sample inlet chamber, a capillary stop structure, a bifurcation flow-through structure, and a hydrophobic vent.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.