Patent ID: 9573668
Date: 2017-02-21
CPC Classifications: B63H

Claim:
1. A sleeve and collar system for an oar, said system comprising: a sleeve configured to couple to a shaft portion of the oar, said sleeve comprising an outer surface; and a wear collar configured to couple around said sleeve at each of a plurality of longitudinal positions along said sleeve, said wear collar configured to bear substantially all direct contact from an oarlock during a rowing stroke of the oar, a radially inner surface of said wear collar is shaped to be complementary to at least a portion of said sleeve outer surface, such that said wear collar inner surface and said sleeve outer surface cooperate to maintain said wear collar in a predetermined orientation about a longitudinal axis of said sleeve at each of said plurality of longitudinal positions, wherein said wear collar inner surface is configured to engage said sleeve outer surface in a complementary fit that enables a sliding movement of said wear collar longitudinally along said sleeve.