Fluid reaction surfaces (i.e. – impellers) – Working member foldable – pivotable or collapsible to non-use...
Reexamination Certificate
2008-01-15
2008-01-15
Kershteyn, Igor (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Working member foldable, pivotable or collapsible to non-use...
C415S004200, C415S064000
Reexamination Certificate
active
07318702
ABSTRACT:
A water wheel assembly is disclosed and comprises a water wheel including a plate having a rotation axis and a plurality of circumferentially-spaced receivers, each including a first slit defined through the plate, proximal to the axis, and a second slit defined through the plate, distal to the axis. A vane is provided for each receiver and includes: a body hinged to the plate for movement between a lowered position, flush therewith, and a raised position, angularly extending therefrom; and a pair of flaps extending from the body to: project through respective slits and beyond the plate when the body is lowered; and define, in combination with the body and the plate, a scoop, when the body is raised. The plate is mounted in a flow of water with its axis normal thereto and such that the plate is free to rotate about the axis.
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Kershteyn Igor
Young Basile Hanlon MacFarlane & Helmholdt PC
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