Reversible fish finder apparatus

Details Reversible fish finder apparatus Reversible fish finder apparatus

1991-10-29

1993-01-26

Eldred, J. Woodrow

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

367165, 367104, 367 16, H04R 1700

Patent

active

051827328

ABSTRACT:
A reversible drive for a fish-finder apparatus includes a motor, a drive gear driven by the motor, a driven gear driven by the drive gear and a fish-finder drive shaft driven by the driven gear. The drive gear contains one or more actuator members which actuate a drive control member, such as a reverse polarity switch, during rotation of the drive gear. When actuated, the drive control member reverses the drive to the motor and thereby reverses the drive to the fish-finder. A display panel contains diode indicators which are illuminated in response to the movement of the fish-finder.

REFERENCES:
patent: 2825884 (1958-03-01), Fryklund
patent: 3553638 (1971-01-01), Sublett
patent: 3752431 (1973-08-01), McBride
patent: 4152690 (1979-05-01), Veatch
patent: 4479206 (1984-10-01), Granberg et al.
patent: 4815048 (1989-03-01), Boucher et al.
patent: 4888747 (1989-12-01), Williams
patent: 4928915 (1990-03-01), Havins
patent: 4979153 (1990-12-01), Terry
patent: 4980872 (1990-12-01), Oler et al.
patent: 4982924 (1991-01-01), Havins

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