Fishing – trapping – and vermin destroying – Fishing – Artificial bait
Reexamination Certificate
1999-07-26
2001-11-20
Rowan, Kurt (Department: 3643)
Fishing, trapping, and vermin destroying
Fishing
Artificial bait
Reexamination Certificate
active
06318020
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to the field of fishing lures and, in particular, to lures that are responsive to varying temperatures resulting in colored lures whose color is temperature dependent, and the method of making the same.
2. Description of the Prior Art
In the art of fishing lures, it has been known to coat the outer surface of the lure with certain materials in order to attract fish. For example, some lures in the prior art are painted with luminous paint, pigment, or phosphorescent material so that the lures appearance would be attractive to certain fish.
In the 1970's, thermochromic materials were developed using encapsulated dyes. The technology was initially used in the textile and novelty industries. While color changing lures of various types have been provided in the prior art, fishing lures painted with thermochromatic paint are mentioned in U.S. Pat. No. 5,222,320 to Nels E. Erickson, the teachings of which are incorporated by this reference. However, these prior art thermochromatic lures only had the ability to change between two colors, and were not responsive to varying degrees of temperature often encountered in fishing, especially throughout the depths and seasons.
SUMMARY OF THE INVENTION
The present invention relates to a fishing lure that is coated with the plurality of thermochromic layers to produce a lure that changes colors responsive to temperature changes. Because there are a plurality of thermochromic layers, and because each layer obtains its color only in a specific temperature range, the present invention allowed the use of multiple layers with different temperature sensitivities to enable the use of varying colors over a broad range of temperatures.
In order to achieve a purity in the thermochromic layers not found when paints and inks are used, thermochromic powder is mixed with non-hazardous virgin clear oil and water. The process of mixing carries the clean undamaged crystals with the oil and the damaged or contaminated crystals with the water. A clean powder can be recovered from the oil and then mixed with clear lacquer to apply the layers of any color to a fishing lure of any design. The process may be repeated for as many layers as a person desires.
It is an object of the invention to provide a fishing lure that will change color upon reaching different temperatures.
Another object of the invention is to provide a process for the manufacture of a fishing lure which will change colors through a range of temperatures.
Yet another objective is to provide a process for making purified thermochromic paint which can display colors in a sequence corresponding to changing temperature ranges.
Still another objective of the invention is to provide a thermochromic lure that can be made easily and will be economical to manufacture.
Other objectives of the invention will become apparent to those skilled in the art once the invention has been shown and described.
REFERENCES:
patent: 5222320 (1993-06-01), Erickson
patent: 5465524 (1995-11-01), Vallone
patent: 5723178 (1998-03-01), Sheets
Rowan Kurt
Zarley McKee Thomte Voorhees & Sease
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