Trolling device with parameter detecting means for controlling t

Ships – Mooring device – Boom type

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43 4203, 43 4313, 340 3T, B63B 2100

Patent

active

039788113

ABSTRACT:
A trolling device for movement through a fluid includes a movable element and control apparatus for selectively stopping the movable element to control the movement of the trolling device through a fluid according to a detected physical parameter. In one embodiment, the movable element comprises a paddle wheel and the control apparatus includes a bellows which stops the wheel causing the device to dive when trolled through a fluid such as water above a predetermined depth. When below a predetermined depth, the wheel is allowed to freewheel permitting the device to ascend.

REFERENCES:
patent: 2679227 (1954-05-01), Symonds
patent: 2976642 (1961-03-01), Wickman et al.
patent: 3470649 (1969-10-01), Cole
patent: 3491476 (1970-01-01), McLendon
patent: 3677278 (1972-07-01), Joynes
patent: 3749045 (1973-07-01), Angus et al.
patent: 3796000 (1974-03-01), Nye

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