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US4617751A Expired / Lapsed US ⏱️ 0.0 years remaining

Fishing tackle with a fiber optic light guide as the fishing line

Assignee: Individual
•
Filing: 1984-02-23
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Granted: 1986-10-21
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Expires: 2004-02-23
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Abstract

Abstract A fishing tackle for catching fish with a fishing line (1) constituting a light guide, at one end of which the light from a natural or artificial light source can be focused, and at the other end of which a bait (3) with reflecting, luminescent, transmittent or light-scattering properties is located. In certain embodiments the fishing tackle also comprises an opto-electronic energy transformer, an electric energy storage circuit, an optic beam splitter and a light detector.

Inventors

  • 👤 Hakan Johansson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 20:55
CPC Classifications
A; A01; A01K; A01K85/00; A01K85/01; A01K85/015; A01K91/00; A01K91/06; A01K85/011; A01K87/00; A01K87/007

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 156 words
A fishing tackle for catching fish, comprising a hand tool, a fishing line connected to the hand tool and a bait including an arresting member and connected to the fishing line, the fishing line comprising a least one light guide in the form of an optic connection between the hand tool and the bait for transmitting light to the bait to light up the same and comprising a core and a cladding, the core having a higher refractive index than the cladding, means for introducing light from a light source into the light guide at the hand tool, and coupling means connecting the light guide to the bait, the bait being capable of emitting light transmitted thereto from said light source via the light guide, said coupling means comprising at least two portions separable from each other, one portion being rigidly connected to the light guide and a second portion being rigidly connected to the bait.
Claim 2
Dependent Claim 156 words
A fishing tackle for catching fish, comprising a hand tool, a fishing line connected to the hand tool and a bait including an arresting member and connected to the fishing line, the fishing line comprising a least one light guide in the form of an optic connection between the hand tool and the bait for transmitting light to the bait to light up the same and comprising a core and a cladding, the core having a higher refractive index than the cladding, means for introducing light from a light source into the light guide at the hand tool, and coupling means connecting the light guide to the bait, the bait being capable of emitting light transmitted thereto from said light source via the light guide, said coupling means comprising at least two portions separable from each other, one portion being rigidly connected to the light guide and a second portion being rigidly connected to the bait.
Claim 3
Dependent Claim 29 words
A fishing tackle as in claim 1, wherein the means for introducing light into the light guide includes at least one optical beam-splitter and at least one light-collecting element.
Claim 4
Dependent Claim 30 words
A fishing tackle as in claim 2, wherein the light-collecting element includes focusing means capable of focusing light from the light source to a light-introducing end of the light guide.
Claim 5
Dependent Claim 15 words
A fishing tackle as in claim 3, wherein the focusing means includes an optical reflector.
Claim 6
Dependent Claim 15 words
A fishing tackle as in claim 3, wherein the focusing means includes an optical refractor.
Claim 7
Dependent Claim 25 words
A fishing tackle as defined in claim 1, wherein the bait has a shape and a color imitating a typical prey for the intended catch.
Claim 8
Dependent Claim 156 words
A fishing tackle for catching fish, comprising a hand tool, a fishing line connected to the hand tool and a bait including an arresting member and connected to the fishing line, the fishing line comprising at least one light guide in the form of an optic connection between the hand tool and the bait for transmitting light to the bait to light up the same and comprising a core and a cladding, the core having a higher refractive index than the cladding, means for introducing light from a light source into the light guide at the hand tool, and coupling means connecting the light guide to the bait, the bait being capable of emitting light transmitted thereto from said light source via the light guide, said bait comprises at least one energy transformer including a photo-diode, for transforming light energy to electric energy, and at least one electric energy storage circuit comprising at least one capacitor.
Claim 9
Dependent Claim 156 words
A fishing tackle for catching fish, comprising a hand tool, a fishing line connected to the hand tool and a bait including an arresting member and connected to the fishing line, the fishing line comprising at least one light guide in the form of an optic connection between the hand tool and the bait for transmitting light to the bait to light up the same and comprising a core and a cladding, the core having a higher refractive index than the cladding, means for introducing light from a light source into the light guide at the hand tool, and coupling means connecting the light guide to the bait, the bait being capable of emitting light transmitted thereto from said light source via the light guide, said bait comprises at least one energy transformer including a photo-diode, for transforming light energy to electric energy, and at least one electric energy storage circuit comprising at least one capacitor.
Claim 10
Dependent Claim 34 words
A fishing tackle as in claim 7 including at least one release means including a micro-switch for releasing the electric energy stored in the energy storage circuit for retaining, killing or stunning the catch.
Claim 11
Dependent Claim 28 words
A fishing tackle as in claim 2, wherein the optical beam-splitter is connected to a light detector for detecting light reflected through the light guide from the bait.
Claim 12
Dependent Claim 27 words
A fishing tackle as in claim 9, wherein the light detector is connected to an indicator unit capable of indicating variations in intensity of the reflected light.

References Cited (Backward Citations)

US2711044A Cited
US3449036A Cited
US3829675A Cited
US4117618A Cited
US4420796A Cited
US4501084A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-10-20 1990-04-21 1990-10-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-10-20 1994-04-21 1994-10-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-10-20 1998-04-21 1998-10-21 $7700.00 Window Closed / Lapsed

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