RING PROPELLER WITH FORWARD SCREW
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United States of America Patent
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Issued Date -
Jul 30, 2015
app pub date -
Aug 13, 2013
filing date -
Aug 14, 2012
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Abstract
A ring propeller for a thruster includes a ring and a centre element. The ring propeller also includes at least one propeller blade extending between and attached to the centre element and the ring the at least one propeller blade comprises a leading edge profile and a trailing edge profile in a cross section perpendicular to an axis of rotation of the ring propeller.
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