Buoys – rafts – and aquatic devices – Buoy – With means to call buoy to surface
Patent
1983-05-31
1985-03-26
Basinger, Sherman D.
Buoys, rafts, and aquatic devices
Buoy
With means to call buoy to surface
43100, 43102, 251297, 251323, 441 30, B63G 822
Patent
active
045070938
ABSTRACT:
A device for automatically raising fish traps, crayfish pots, nets and the like comprises a tank containing pressurized gas connected through a control valve to an inflatable bladder. A control unit including a receiver and a solenoid driver is operable to open the valve, causing bladder inflation, when activated by a signal transmitted through the water or a timing mechanism. The control unit and valve are located within a watertight compartment of a housing connected to the tank. A pair of substantially flat frame members interconnect the housing to the tank. The frame members are mutually orthogonal and include identical cutouts defining a spherical inflation region. The bladder is positioned in the inflation region by upper and lower mounting sleeves. The upper sleeve includes a deflation valve and lift ring to provide automatic bladder deflation as the ring is engaged by surface personnel to raise the device from the water.
REFERENCES:
patent: 1910070 (1933-05-01), Spaeth
patent: 3126559 (1964-03-01), Alexander
patent: 3828380 (1974-08-01), Lebovits
patent: 4034693 (1977-07-01), Challenger
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