Fluid reaction surfaces (i.e. – impellers) – Plural impellers having relative movement or independent...
Reexamination Certificate
2007-02-02
2010-10-12
Look, Edward (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Plural impellers having relative movement or independent...
C415S907000, C416SDIG004
Reexamination Certificate
active
07811060
ABSTRACT:
One or more vertical axis wind turbines (VAWT), preferably of the Savonius type, are mounted in a relatively simple and inexpensive manner. For a single VAWT a center pole may be disposed within a hollow shaft of the VAWT with at least upper and lower bearings acting between the shaft and center pole. Alternatively, a short tower or platform may mount a lower bearing (e. g. about 4-14 feet off the ground) for the VAWT shaft, and an upper bearing for the shaft may be mounted by an outrigger. The outrigger is connected at a number of different points (e. g. different arms) by strands (such as steel cables) to stationary supports. Where multiple VAWTs are provided, them may be in a cluster. Each VAWT in the cluster has a structural support in common with at least one other VAWT of the cluster, and each VAWT is operatively connected to a separate useful driven mechanism (such as an electricity or fuel gas generator). Each VAWT typically has an outrigger mounting an upper bearing, with strands, rods, or bars, connecting outriggers of adjacent VAWTs together. Different VAWTs in the cluster preferably rotate in different directions.
REFERENCES:
patent: 1008148 (1911-11-01), Hibbs
patent: 1471870 (1923-10-01), Tust
patent: 2252523 (1941-08-01), Plotkin
patent: 4095422 (1978-06-01), Kurakake
patent: 4156580 (1979-05-01), Pohl
patent: 4165468 (1979-08-01), Fry et al.
patent: 4184084 (1980-01-01), Crehore
patent: 4359311 (1982-11-01), Benesh
patent: 4496847 (1985-01-01), Parkins
patent: 4500259 (1985-02-01), Schumacher
patent: 4764683 (1988-08-01), Coombes
patent: 4830570 (1989-05-01), Benesh
patent: 4979871 (1990-12-01), Reiner
patent: 6602045 (2003-08-01), Hickey
patent: 7071579 (2006-07-01), Erdman et al.
patent: 2004/0056486 (2004-03-01), Wobben
patent: 2005/0230980 (2005-10-01), Brunet
patent: 2005/0263057 (2005-12-01), Green
patent: 521083 (2003-09-01), None
Johnson, Gary L.; Wind Energy Systems; Chapter 1, Sec. 5, Innovative Wind Turbines; Nov. 20, 2001; pp. 1-16 thru 1-18.
Ellis Ryan H
Look Edward
LandOfFree
VAWT cluster and individual supporting arrangements does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with VAWT cluster and individual supporting arrangements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and VAWT cluster and individual supporting arrangements will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4196615