Patent ID: 6358008
Filing Date: 2002-03-19
Classification: B63H,F04D,F16D

Abstract:
A propeller assembly for mounting on a rotatable propeller shaft of a watercraft, comprising:a central hub extending along an axis and being mountable on the propeller shaft for rotational movement therewith, the central hub defining a generally cylindrical outer surface having a plurality of circumferentially spaced keys therealong, each key having a first, narrow end and a second, wider outer end; a generally tubular propeller housing slidable onto the central hub for rotational movement with the propeller shaft, the propeller housing including an inner surface having a ledge formed therein extending circumferentially about the axis and a plurality of circumferentially spaced pairs of axially extending lobes therealong, each pair of lobes defining a corresponding keyway for receiving a corresponding key along the central hub; and a locking ring mountable on the propeller shaft, the locking ring including a generally central disc having an aperture for receiving the propeller shaft therethrough and an outer rim for engaging the lobes and the ledge for preventing removal of the propeller housing from the central hub.