Patent References 3362033 Positive cam lock for extension pole Lockable telescopic joint Patent #: 4508466 InventorApplicationNo. 07/148055 filed on 01/25/1988US Classes:440/101, OAR OR PADDLE416/70R, Operation solely by direct hand manipulationD12/215Oar, paddle or anchor (40)ExaminersPrimary: Basinger, Sherman D.Assistant: Swinehart, Edwin L. Attorney, Agent or FirmInternational ClassesB63H 16/00 (20060101)B63H 16/04 (20060101) AbstractAn adjustable paddle (A) is disclosed which includes an adjustable joint (C) which allows for two handle sections (14, 16) to be fitted together in a desired axial and rotational positions to fix the length of paddle (A) and the relative blade angle settings of blades (18, 20). The adjustable joint includes three concentric shafts (22, 24, 28; and 62, 64, 66) to provide a more rigid joint which is generally wobble-free. Preferably, the concentric shafts are fixed together by a compression lock (30). The compression lock includes an annular compression member (32) and beveled edges (38, 58, 70) affixed on the first handle section and a complimentary beveled surface (34a) on compression nut (34). Tightening of the compression nut forces compression member (32) about the shaft of the second handle section to fit the handle sections together in the desired axial and rotational position. Additionally, a cam lock (26) may also be utilized to alternately lock the handle sections together.Field of SearchOAR OR PADDLE | |