Vertical axis wind turbine

Fluid reaction surfaces (i.e. – impellers) – Sustained ancillary movement of rotary working member – Continuous rotation about plural axes

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C416S13200B, C416S140000, C416S228000

Reexamination Certificate

active

07083382

ABSTRACT:
The present invention provides a prime mover (2) for harnessing energy from a flow of fluid, the prime mover (2) comprising a shaft (4) having a rotational axis, arranged to be rotatably mounted to a substructure, the shaft (4) comprising at leas one arm (6) extending radially from the shaft (4), the or each arm (6) comprising at least one blade (8) wherein the or each blade (8) is oriented such that flow action on the blade (8) effects rotation of the shaft (4), characterized in that the or each blade (8) is movably mounted on an arm (6) and wherein each blade (8) is movable from a first position, having a first drag, to a second position, having a second drag, wherein the first drag is higher than the second drag. The prime mover (2) of the invention provides substantially reduced drag in a flow of fluid, and an increased torque output, compared to prior art prime movers.

REFERENCES:
patent: 1225033 (1917-05-01), Jackson
patent: 2128592 (1938-08-01), Mushkin
patent: 4052134 (1977-10-01), Rumsey
patent: 4137009 (1979-01-01), Telford
patent: 4191506 (1980-03-01), Packham
patent: 4247251 (1981-01-01), Wuenscher
patent: 4383801 (1983-05-01), Pryor
patent: 4468169 (1984-08-01), Williams
patent: 4618313 (1986-10-01), Mosiewicz
patent: 5193978 (1993-03-01), Gutierrez
patent: 5256034 (1993-10-01), Sultzbaugh
patent: 5266006 (1993-11-01), Tsui et al.
patent: 5503525 (1996-04-01), Brown et al.
patent: 27 18 608 (1978-11-01), None
patent: 2 426 813 (1978-05-01), None
patent: 2 426 813 (1979-12-01), None
patent: 2 008 202 (1979-05-01), None
patent: 2 068 472 (1981-08-01), None
patent: 2 241 747 (1991-09-01), None
patent: 1983-0008035 (1983-11-01), None
patent: WO 92/01866 (1992-02-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Vertical axis wind turbine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vertical axis wind turbine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vertical axis wind turbine will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3697522

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.