Submerged anti-theft device, for preventing theft or accidental loss of nets or lobster pots, has programmable unit which unlocks tow reel only when programmed date and time is reached

摘要

The device is in the form of a container serving as a buoyant member (1) with sealed parts, and having a reel (2') with a towing cable fixed to the reel, and having an oval knob or ring (5) sliding in a hole at the middle of a plate or fixed trap (3) of smaller diameter than the oval knob or ring. The axle (6) of the reel rotates in two recesses (7) in the container. A blocking/unblocking mechanism is controlled by an programmable electronic timer or control unit fixed in another sealed recess (48), accessible by a hatch (9) - which locks or unlocks the reel when the mechanism is reset, or when the programmed date is reached. Once the programmed date is reached, the reel is unlocked and the line is unrolled to allow the device to surface under the Archimedean principle.