04039848 is referenced by 60 patents and cites 4 patents.

A wind operated generator employing counterrotating propellers with an alternating current generator positioned between the blades of the propellors and spacing the same. The propellors and generator parts are mounted on concentric shafts supported in a positive drive structure in which the shafts are tied together through gearing to insure positive starting and counterrotation of the propellers in a positive equal drive system. A governor associated with one of the shafts governs the operational speed of rotation of both propellers to protect the propellors and generator.

Title
Wind operated generator
Application Number
5/630094
Publication Number
4039848
Application Date
November 10, 1975
Publication Date
August 2, 1977
Inventor
William R Winderl
124 1st N., Glasgow, 59230
MT, US
Agent
Schroeder Siegfried Ryan & Vidas
IPC
F02N 11/04
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