Patent · US Active

Structures for uniform capillary flow

US8231845B2 · kind B2 · utility

5Cited by

11References

6Claims

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	Jul 6, 2004
Grant date	Jul 31, 2012
Priority date	—
Expiry date	Feb 20, 2028

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01L2400/086
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.