Reciprocating microfluidic pump system for chemical or biological agents
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Mar 27, 2007
Grant Date -
Nov 10, 2005
app pub date -
Oct 4, 2002
filing date -
Aug 29, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A miniature pump has at least one controllable expansion-and-contraction chamber, and associated pair of tiny ducts interconnecting a fluid source and destination. The ducts communicate with the chamber(s); an linking tunnel links the ducts. Valves interact with fluid pressures due to expansion and contraction, imposing directionality on flow in the ducts and tunnel. Preferences: making the valve a passive flapper, implanting the pump in a creature, making the source a medication reservoir for supplying the creature; making the source a fuel tank and destination a tiny engine; making the source provide a specimen for assay and destination an observation slide; human or automatic examination of the slide under a microscope (e. g. electron microscope); making the source a reagent and destination a process stream; making the source a colorant and destination a colorant application system. Preferably included is an optical channel with intersecting fluid duct for optically monitoring pumped fluid.
First Claim
Other Claims data not available
Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| US | B2 | US6890986 | Aug 28, 2001 |
| WO | A1 | WO2002018671 | Aug 28, 2001 |
| US | B2 | US6856718 | May 07, 2002 |
| US | B2 | US6934435 | Oct 04, 2002 |
| US | A1 | US20050187335 | Mar 31, 2005 |
International Classification(s)
- 2002 Application Filing Year
- F04B Class
- 851 Applications Filed
- 358 Patents Issued To-Date
- 42.07 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 28 Citation Count
- F04B Class
- 86.30 % this patent is cited more than
- 18 Age
