Measuring devices for watercraft

Details Measuring devices for watercraft Measuring devices for watercraft

1983-09-06

1985-07-16

Woodiel, Donald O.

Measuring and testing

Navigation

Ship's log

73300, G01C 2110, G01F 2316

Patent

active

045288461

ABSTRACT:
Measuring devices for small, high performance sailboats, sailboards and other watercraft comprise a transducer to convert pressure exerted by the water through which the watercraft passes into a gas pressure within a chamber in the transducer, a gage to be carried above the water on the watercraft, the gage comprising first and second gas compartments connected by a passageway plus a liquid or solid free piston moveable in the passageway responsive to variations in gas pressure occurring in the second compartment and a flexible tube connecting the transducer chamber with the second gas compartment to transmit gas pressure variations from the chamber to the second compartment. In one embodiment, the measuring device is a speedometer. In a second embodiment, the measuring device is a depthmeter.

REFERENCES:
patent: 1048212 (1912-12-01), Roper
patent: 3046784 (1962-07-01), Vicik et al.
patent: 3245259 (1966-04-01), Werbowetzki

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