Electronic fish attractor with acoustic sounder

Claim 2

An electronic fish attractor comprising: at least one transducer for generating sound waves; a sounding board mechanically coupled to said transducer, and acoustically coupled to water containing the fish; a transfer plate disposed between said transducer and said sounding board; a low frequency electric wave power source for generating low frequency electric wave energy connected to said transfer plate via said transducer; a float chamber for floating the fish attractor in water; means for attaching a towing line to the attractor, a ballast attached to the attractor, said ballast being of a weight less than the buoyancy of the attractor including the buoyancy of the float chamber for maintaining the attractor floating in upright position in water, and including seaweed-like appurtenances to the attractor.

Claim 3

An electronic fish attractor comprising: at least one transducer for generating sound waves; a sounding board mechanically coupled to said transducer, and acoustically coupled to water containing the fish; a transfer plate disposed between said transducer and said sounding board; a low frequency electric wave power source for generating low frequency electric wave energy connected to said transfer plate via said transducer; a float chamber for floating the fish attractor in water; means for attaching a towing line to the attractor; a ballast attached to the attractor, said ballast being of a weight greater than the buoyancy of the attractor including the buoyancy of the float chamber for maintaining the attractor in upright suspended position below the surface of the water; means for attaching a suspension line to the attractor, and means for attaching seaweed like appurtenances to the attractor.

Claim 4

An electronic fish attractor comprising: at least one transducer for generating sound waves; a sounding board mechanically coupled to said transducer, and acoustically coupled to water containing the fish; a transfer plate disposed between said transducer and said sounding board; a low frequency electric wave power source for generating low frequency electric wave energy connected to said transfer plate via said transducer; a float chamber for floating the fish attractor in water; means for attaching a towing line to the attractor; a ballast attached to the attractor, said ballast being of a weight greater than the buoyancy of the attractor including the buoyancy of the float chamber for maintaining the attractor in upright suspended position below the surface of the water; means for attaching a suspension line to the attractor, and means for attaching seaweed like appurtenances to the attractor.

Claim 5

An electronic fish attractor according to claim 1 wherein said means for attaching a towing line includes an electric cable for connecting said transducer to said low frequency wave power source.

Claim 6

An electronic fish attractor comprising: at least one transducer for generating sound waves; a sounding board mechanically coupled to said transducer, and acoustically coupled to water containing the fish; a transfer plate disposed between said transducer and said sounding board; a low frequency electric wave power source for generating low frequency electric wave energy connected to said transfer plate via said transducer; a float chamber for floating the fish attractor in water; means for attaching a towing line to the attractor; a ballast attached to the attractor, said ballast being of a weight greater than the buoyancy of the attractor including the buoyancy of the float chamber for maintaining the attractor in upright suspended position below the surface of the water; means for attaching a suspension line to the attractor; wherein said means for attaching a suspension line includes an electric cable for connecting said transducer to said low frequency power source.

Claim 7

An electronic fish attractor comprising: at least one transducer for generating sound waves; a sounding board mechanically coupled to said transducer, and acoustically coupled to water containing the fish; a transfer plate disposed between said transducer and said sounding board; a low frequency electric wave power source for generating low frequency electric wave energy connected to said transfer plate via said transducer; a float chamber for floating the fish attractor in water; means for attaching a towing line to the attractor; a ballast attached to the attractor, said ballast being of a weight greater than the buoyancy of the attractor including the buoyancy of the float chamber for maintaining the attractor in upright suspended position below the surface of the water; means for attaching a suspension line to the attractor; wherein said means for attaching a suspension line includes an electric cable for connecting said transducer to said low frequency power source.

Claim 8

An electronic fish attractor comprising: at least one transducer for generating sound waves; a sounding board mechanically coupled to said transducer, and acoustically coupled to water containing the fish; a transfer plate disposed between said transducer and said sounding board; a low frequency electric wave power source for generating low frequency electric wave energy connected to said transfer plate via said transducer; a float chamber for floating the fish attractor in water; means for attaching a towing line to the attractor; a ballast attached to the fish attractor for sinking the attractor; means for attaching a suspension line to the attractor for suspending the attractor below the water surface; and including at least one spring for attaching the ballast to the sounding board, said spring having a stiffness such that it resonates with the sounding board at a frequency corresponding to that of the low frequency electric wave power source connected to the transducer.

Claim 9

An electronic fish attractor comprising: at least one transducer for generating sound waves; a sounding board mechanically coupled to said transducer, and acoustically coupled to water containing the fish; a transfer plate disposed between said transducer and said sounding board; a low frequency electric wave power source for generating low frequency electric wave energy connected to said transfer plate via said transducer; a float chamber for floating the fish attractor in water; means for attaching a towing line to the attractor; a ballast attached to the fish attractor for sinking the attractor; means for attaching a suspension line to the attractor for suspending the attractor below the water surface; and including at least one spring for attaching the ballast to the sounding board, said spring having a stiffness such that it resonates with the sounding board at a frequency corresponding to that of the low frequency electric wave power source connected to the transducer.