Wind turbine means
Patent 4237384 Issued on December 2, 1980. Estimated Expiration Date: 
June 27, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 27, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 372300 1460114 1677745 1812400 2059356 3721290 Wind driven apparatus Patent #: 4019828 InventorApplicationNo. 06/052690 filed on 06/27/1979US Classes:290/55, Wind290/44, Wind415/151, Upstream of runner415/4.2Vertical runner axisExaminersPrimary: Rubinson, Gene Z.Assistant: Duncanson, W. E. Jr. International ClassesF03D 11/04 (20060101)F03D 3/00 (20060101) F03D 3/04 (20060101) F03D 11/00 (20060101) AbstractA turbine wheel which includes a housing for enclosing the electrical generating apparatus, and track structure which engages and rotatably drives the generator or the like, i.e., through suitable coupling structure. Shroud structure is disposed in an operable exterior proximity with the turbine wheel for varying the effectiveness of the wind as it is acting upon the turbine wheel, i.e., in infinite variable stages commensurate with changing velocity of the wind. The speed of the turbine wheel is automatically controlled so as to remain substantially constant throughout a wide variance of normal wind velocity and irrespective of the direction of the wind. | |
