lancaster * You Don't Really Want A Patent, Do You? * Don Lancaster's Patent Avoidance Library. Don discusses many of the pitfalls of obtaining and keeping patents. He makes a convincing argument that there is no need for obtaining a patent unless the gross sales are greater than $12,000,000.
Turbine: Turbine, any of various devices that convert the energy in a stream of fluid into mechanical energy. The conversion is generally accomplished by passing the fluid through a system of stationary passages or vanes that alternate with passages consisting of finlike blades attached to a rotor.