Compositions – Organic luminescent material containing compositions – Natural resin – cellulose – or derivatives containing
Reexamination Certificate
2000-01-12
2001-08-28
Koslow, C. Melissa (Department: 1755)
Compositions
Organic luminescent material containing compositions
Natural resin, cellulose, or derivatives containing
C252S301360, C106S241000
Reexamination Certificate
active
06280654
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Technical Field
This invention relates generally to rosin for use in connection with enhancing the coefficient of friction of an object or surface.
2. Discussion of Prior Technology
Lighting effects as well as many other types of visual effects are often employed to provide a pleasing experience for the audience during musical performances. One avenue for doing so is provided by enhancing the visual appearance of the musical instruments. This can prove to be ineffective in a large or dark venue wherein the audience may be unable to see the modifications made. Therefore, methods for providing additional aesthetically pleasing qualities by illuminating the artists or their instruments have been developed.
For example, U.S. Pat. No. 5,796,025, issued Aug. 18, 1998 to Haake, provides for the lighting of the surface of a stringed instrument with at least one light source embedded in the body of the instrument. The light source feeds a plurality of optical fibers that illuminate the surface of the instrument when electrically powered. Controls for the light source are provided on the instrument allowing the artist to vary the lighting effect produced.
The neck of a stringed instrument is shown illuminated in U.S. Pat. No. 3,943,815, issued Mar. 16, 1976 to Gilbert. A light source is embedded in the body of the instrument delivering light through fiber optic strands to fret markers located along the length of the neck.
The conventional methods for illuminating musical instruments are limited by their reliance on electrical energy and have been applied to instruments not requiring a bow.
SUMMARY OF THE INVENTION
The primary object of this invention is to replace conventional rosins with a “glow in the dark” rosin in either a cake or powdered form to produce a desired visual effect. It is a particular object of this invention to provide a non-electrically powered lighting effect while maintaining the properties of conventional rosins.
Another object of this invention is to provide a method for making a“glow in the dark” rosin.
It is a further object of this invention to provide a cake rosin with “glow in the dark” properties that may be applied to violin bows, cello bows, double bass bows and any other bows used on string instruments.
Still another object of this invention is to provide a powdered form of the “glow in the dark rosin” that may be applied to violin bows, cello bows, double bass bows and any other bows used on string instruments.
A further object of this invention is to provide a “glow in the dark” rosin that may be used by athletes for obtaining a firm grip on a ball, bat, or other object while producing aesthetically pleasing visual effects.
Yet another object of this invention is to provide a “glow in the dark” rosin that may be used on walking surfaces to increase traction while providing a source of light.
The rosin may be applied to bows in the same manner as conventional rosin when preparing to play a violin, cello, double bass or any other stringed instrument to enhance the effects of a performance. Children can use the glow in the dark rosin simply as a novelty item, selecting the color of their choice. The rosin may also be produced in a powdered form to replace the conventional rosins used by athletes and other persons such as drummers and rock climbers. In addition, nursing homes and other health-care facilities have been known to cover the floors with powdered rosins and like materials to increase traction. The “glow in the dark” rosin provides traction and an illuminated walkway when used in a like manner.
The lighting effect produced upon the instruments by previous inventions varies visually from that created by a “glow in the dark” rosin applied to a bow according to the present invention which requires only sunlight as an energy source and is functionally as useful as conventional rosins in both musical and non-musical applications. The “glow in the dark” rosin retains all of the physical properties of conventional rosins while providing an aesthetically pleasing quality.
The aforesaid objects are achieved individually and in combination, and it is not intended that the present invention be construed as requiring two or more of the objects to be combined unless expressly required by the claims attached hereto.
The above and still further objects, features and advantages of the present invention will become apparent upon consideration of the following detailed description of specific embodiments thereof.
DESCRIPTION OF THE PREFERRED EMBODIMENTS OF THE INVENTION
In the preferred embodiment of the invention, “glow in the dark rosin” is a luminescent rosin compound formed of an admixture of luminescent glow pigment and rosin. By combining rosin and luminescent pigment, the present invention provides luminescent colored rosins that retain the physical properties of the uncolored, non-luminescent rosin. “Glow In The Dark” rosin can be made in a variety of colors depending on the luminescent glow pigments and rosins selected in preparing the product. The specific pigments and rosin are mentioned herein as examples only; it will be appreciated that there are dozens of such products that can serve as constituents for the product of the present invention.
In the present invention, the rosin component of the luminescent rosin compound is comprised of at least one rosin which is a synthetic or natural resin insoluble in water having the properties of being hard and friable or becoming increasingly soft and sticky when warmed above room temperature. The rosin fully liquefies upon reaching the melting point usually between 100° and 150° C. and, upon further heating, combusts at or near the flash point temperature generally around 370° F. (187° C.). The natural form of the rosin is derived from pine trees, chiefly Pinus palustris and Pinus caribaea, and retains the acidic nature of all rosins which generally have acid numbers above 150. The acidic nature of the rosin results principally from its chief constituents, resin acids of the abietic and primaric types, having the general formula C
19
H
29
COOH and having a phenanthrene nucleus. Examples of a suitable rosin to be utilized as the rosin component of the luminescent rosin compound includes “Kafko Light Rosin”, manufactured by Kafko International LTD of Skokie, Ill. “Shermin's Violin Rosin”, 1418 Eagle Glenn Street, Escondido, Calif. 92029 and “Super—Sensitive Rosin”, 1805 Apex Road, Sarasota, Fla. 34240-9386.
The pigment component of the luminescent rosin compound is comprised of at least one pigment that is any substance with luminescent properties that imparts color to another substance or mixture. A pigment that emits light as a result of an excitation of the pigment's atoms, usually induced by some form of radiation such as sunlight, is defined as having luminescent properties. Examples of luminescent glow pigments include “Ultra Green”, manufactured by Pete's Luminous Creations of Singapore; “Phosphorescent Pigment”, manufactured by Firefly Cosmetics of Rutherford, N.J. “Lumilux effect green N-FG”, manufactured by Allied Signal of Moristown, N.J. and “Globug Phosphor H13”, manufactured by Capricorn Chemicals of England.
In a preferred method for fabricating “glow in the dark” rosin in cake form, the selected rosin is placed in any container conductive to heat. The rosin is then liquefied by slowly heating the container. Gradually, the chosen luminescent glow pigment is added to the liquefied rosin, stirred occasionally to assure uniform mixing. When preparing the “glow in the dark” compound for either the cake rosin or the powdered rosin, the mixture is created in a ratio of two parts by volume luminescent glow pigment to one part by volume rosin. The mixture is then allowed to cool to a solid state thereby forming the cake rosin. Shredding the cake rosin product produces the powdered form of the rosin.
The ability of the rosin to act as a conventional rosin and glow in the dark permits its use by symphonies for special effects, highlighting the music and the rhy
Digman Steven M.
Walraven Thomas M.
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