Yup, I have. Clever device if you got enough flow to work with.
This is fascinating. Does the "fluid power source" have to be a flowing stream or creek?
2 cents
You just need water pressure and enough volume. (in the case shown, it comes in the form of head, or water column, pressure) Just keep in mind, it takes a significantly larger amount of water to pump a small amount to the heights he mentions, but if your supply is endless, who cares.
Has anyone ever heard of or used a hydro ram pump?
Great stuff! Uses stream power (about a ten foot drop) to pump water up hill over 100ft. Uses no electricity, wind, muscel or nuthin. I built my own for about $120.00 (Ca. prices).
Check this site:
http://outlands.tripod.com/farm/rampump.htm
ArtC1
Returning to the ways of my fathers