Fish finder or depth detector for marine propulsion
OwnerShinji Yoshidainventor
Life of this patent
Estimating the term…
Abstract
Several embodiments of marine outboard drives including depth finders attached as a unit to the outboard drive. In each embodiment, the depth finder includes a transmitter/receiver that is carried by the lower unit in proximity to and beneath a cavitation plate for protection from underwater objects and for facilitating removal. The outboard drive is pivotally supported by a hollow steering shaft and a conductor extends through the hollow steering shaft for transmitting signals from the transmitter/receiver to a display that is mounted on the outer cowling. In some embodiments, the display is mounted on the front of the outer cowling and on others is pivotally supported on the top of the outer cowling. In all embodiments, the display is resiliently supported.
Claims35
A combined marine outboard drive and depth finder for attachment as a unit to a watercraft comprising an outboard drive adapted to be affixed to the transom of a watercraft, propulsion means carried by said outboard drive for propelling the watercraft, a transmitter/receiver for transmitting and receiving signals for detecting depth carried by said outboard drive, and a display carried by said outboard drive for visually displaying the data obtained by said transmitter/receiver.
A combined marine outboard drive and depth finder for attachment as a unit to a watercraft comprising an outboard drive adapted to be affixed to the transom of a watercraft, propulsion means carried by said outboard drive for propelling the watercraft, a cavitation plate extending above said propulsion means for precluding cavitation, a transmitter/receiver for transmitting and receiving signals for detecting depth carried by said cavitation plate at a forward edge thereof.
A combined marine outboard drive and depth finder for attachment as a unit to a watercraft comprising outboard drive adapted to be affixed to the transom of a watercraft, propulsion means carried by said outboard drive for propelling the watercraft, an outer cowling for said outboard drive, and a display for displaying depth signals carried by said outboard drive.
A combined marine outboard drive and depth finder for attachment as a unit to a watercraft comprising an outboard drive adapted to be attached to a transom of a watercraft for steering movement about a generally vertically extending steering axis, said steering axis being defined in part by a hollow steering shaft affixed to said outboard drive, a transmitter/receiver carried by said outboard drive for transmitting and receiving signals for determining depth, and conductor means extending from said transmitter/receiver through said steering shaft to a remotely positioned display.
Dependencies are inferred from the claim text.