Modular marine instrument
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United States of America Patent
Stats
-
Feb 24, 1987
Grant Date -
N/A
app pub date -
Dec 6, 1985
filing date -
Dec 6, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A modularized marine instrument sensing device is described wherein a paddlewheel assembly for providing an electromagnetic signal proportional to marine vessel speed is separably mountable on retaining members provided in a sensor housing. The sensor housing may house a Hall-effect device which converts the varying magnetic field from the paddlewheels to an electrical signal proportional to vessel speed. The sensor housing may also incorporate a piezoelectric transducer for providing a depth sounding and fish finding function. Optionally, the paddlewheel assembly may include a temperature sensing device, such as a thermistor, within a frame assembly which incorporates locking tabs and engagement pins which cooperate with the retaining members on the sensor housing.
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