Patent Number: 6,254,441

Title: Trolling motor propulsion unit support shaft

Abstract: A trolling motor system is disclosed. The trolling motor system includes a lower propulsion unit, a mounting mechanism adapted to be coupled to the boat and a first shaft fitting at least partially between the mounting mechanism and the lower propulsion unit. The first shaft has a non-circular cross-sectional shape. In one exemplary embodiment, the mounting mechanism is configured to mount to a boat having a longitudinal axis extending from a bow to a stern of the boat, wherein the first shaft has a longitudinal length and smaller transverse width. According to another exemplary embodiment, the first shaft has a hollow interior which receives a second shaft. A passageway is formed between the exterior of the first shaft and the exterior of the second shaft to receive the signal or power transmitting line of an underwater sonar system.

Inventors: Knight; Steven J. (Madison Lake, MN), Hansen; Ronald P. (Mapleton, MN), Showcatally; Shawn (Mankato, MN)

Assignee: Johnson Outdoors Inc.

International Classification: B63H 20/10 (20060101); B63H 25/42 (20060101); B63H 21/00 (20060101); B63H 25/00 (20060101); B63H 21/17 (20060101); B63H 20/08 (20060101); B63H 20/00 (20060101); B63H 20/12 (20060101); G01S 15/00 (20060101); G01S 15/96 (20060101); B60L 011/02 ()

Expiration Date: 07/03/2018