Dear Quang,

I'm sure you have seen numerous papers by Forster, Bardell, Afromowitz,
Sharma and others at University of Washington on Tesla valveless pumps. Your
best bet might be to extract a starting geometry from their papers, and then
work from there. Reprints are available on-line at

http://lettuce.me.washington.edu/micropump/

Note that the U of Washington group also has a patent on applying the Tesla
conduits to micropumps. It is United States Patent 5,876,187, "Micropumps
with fixed valves," and it is also downloadable from their web site.

Best regards,
Jordan

--------------------------------------------------------
Jordan M. Berg, Ph.D., P.E.
Associate Professor of Mechanical Engineering
Texas Tech University
Lubbock, TX 79409-1021

jordan.berg@ttu.edu

> Subject: [mems-talk] Tesla valvular conduit
> Date: Fri, 29 Mar 2002 09:41:57 +0800
> From: "#TRUONG THAI QUANG#" 
>
> I want to make a valve-less micropump based on Tesla valvular conduit. Is
> there a specific geometry for the conduit (angle, number of buckets....) ?
I
> read Tesla patent but could not find.
>
> Quang
> Nanyang Technological University, Singapore.