Trolling motor propulsion unit support shaft
US6254441A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2000 |
| Grant date | Jul 3, 2001 |
| Priority date | — |
| Expiry date | Jun 13, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/96
- WIPO fieldTransport
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.