US Patent 11059556 Trolling motor sealing system

A downshaft assembly for supporting a motor assembly of a watercraft and for enclosing a cable of a transducer assembly fixed to the motor assembly. The downshaft assembly includes a base having an exterior surface, an interior surface, and a surface defining a hole extending between the interior surface and the exterior surface. The downshaft assembly also includes a nut and a grommet having a tapered portion at least partially disposed in the hole. The grommet is configured to receive the cable therethrough and the nut is positioned against the grommet and removably secured to the base, with the positioning of the secured nut compressing at least part of the tapered portion of the grommet against the surface defining the hole.