Fluid reaction surfaces (i.e. – impellers) – Spiral blade or flow passage
Reexamination Certificate
2009-05-04
2011-11-22
Verdier, Christopher (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Spiral blade or flow passage
C416S178000, C416S187000, C416S211000, C416S22700R, C416S22700R
Reexamination Certificate
active
08061993
ABSTRACT:
A vertical axis turbine and method of making same is disclosed. The device and method comprise a plurality of blades rotatably disposed around an axis of rotation at a plurality of blade locations, each blade being twisted at a first angle about its longitudinal axis, each blade having its distal ends located a predetermined distance from the axis of rotation, each blade being bent at one or more central locations along the longitudinal axis so the one or more central locations are the same predetermined distance from the axis of rotation as the distal ends, each blade having a foil cross section perpendicular to the axis of rotation for maintaining unidirectional rotation of that blade about the axis of rotation in a fluid flow, and each blade having its longitudinal axis tilted at a second angle with respect to the axis of rotation.
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Blank Rome LLP
Seab Energy Ltd.
Verdier Christopher
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