Patent · US Expired

Parallel fluid flow wind and water mills

US5971820A · kind A · utility

6Cited by
5References
1Claims
0Family size

Inventor

Key dates

Filing dateJan 2, 1996
Grant dateOct 26, 1999
Priority date
Expiry dateJan 2, 2016

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02T70/5236
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

A parallel fluid flow wind or water mill having one or more pair of vanes fixed around a central mass. The vanes showing in cross section a non-aerodynamic face having a plane or concave surface, and a aerodynamic back side are constructed to rotate in a plane parallel to the flow of the fluid in which they operate.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.