초록 ▼

A marker buoy attached to an object such as a lobster or crab trap by a latch and released by a trigger struck by a falling weight. A sealed buoy compartment contains a first permanent magnet holding the weight in upper position by a supportive pole relationship to the poles of a second permanent ma

A marker buoy attached to an object such as a lobster or crab trap by a latch and released by a trigger struck by a falling weight. A sealed buoy compartment contains a first permanent magnet holding the weight in upper position by a supportive pole relationship to the poles of a second permanent magnet on the weight and releasing the weight when the first magnet is pivoted to a relative position of poles not sufficiently supportive of the weight. The first magnet is pivoted by an electric motor controlled by an electric clock. Setting of the clock and other operations are accomplished without disturbing compartment seals by an external hand-held magnet operating on internal magnetic reed switches. A line tethers the buoy to the object when the latch is released.

대표청구항 ▼

The improvement in means for attachment and release of a buoy relative to an object to which the buoy is also tethered by a line, comprising: (a) releasable attaching means operative to secure said buoy to said object, (b) an electric timer operative to control release of said attaching means, (c) a

The improvement in means for attachment and release of a buoy relative to an object to which the buoy is also tethered by a line, comprising: (a) releasable attaching means operative to secure said buoy to said object, (b) an electric timer operative to control release of said attaching means, (c) a housing and said timer being disposed in said housing which is sealed to prevent water entry, said housing having a magnetically pervious wall, and (d) means including a magnetic reed switch disposed in said housing near said wall and controlling setting of said timer, whereby said timer may be set by a hand-held magnet external of said housing adjacent to said wall without disturbing the housing seal.