Microfluidic autoregulator devices and arrays for operation with newtonian fluids
US7992587B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2006 |
| Grant date | Aug 9, 2011 |
| Priority date | — |
| Expiry date | Oct 27, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7796
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
By use of the vias a microfluidic autoregulator is fabricated comprising an origin of a fluid, a sink for the fluid, a main flow channel coupling the origin and the sink, a valve communicated to the main flow channel to selectively control flow of fluid therethrough, and means dependent on flow through the main flow channel for creating a pressure differential across the valve to at least partially activate the valve to control flow of fluid through the main flow channel. The means for dependent on flow for creating a pressure differential comprises either a dead-end detour channel from the flow channel to the valve, or a loop channel fed back to the control chamber of the valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.