Display sign
AssigneeFrederick Dimmick
InventorFrederick Dimmick
Life of this patent
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AssigneeFrederick Dimmick
InventorFrederick Dimmick
Estimating the term…
A sign comprising at least one light pipe, each light pipe made of light-transmitting material, said at least one light pipe arranged to form a predetermined message or design, each light pipe having at least two ends and carrying at least one light source proximate at least one end, each light source directed towards another end of the light pipe in the direction of extension of the light pipe, a portion of the outer surface of each light pipe being translucent permitting light to exit therefrom, the sign further carrying electrical circuit means for energizing each light source, and means for mounting the at least one light pipe to form the predetermined message or design; whereby energizing of each light source causes light to be transmitted in each light pipe, light therefrom emerging through the translucent outer surface of each light pipe for the display of the predetermined message or design.
A sign comprising at least one light pipe of a suitable material of substantially uniform index of refraction having a longitudinal axis of extension, said at least one light pipe made of light-transmitting material, said at least one light pipe for displaying a predetermined message or design, said at least one light pipe having at least two ends and carrying at least one light source being a light-emitting diode proximate at least one end wherein the at least one light source is contained in said at least one end, said light source directed towards anther end of the light pipe in the direction of the longitudinal axis of extension of the light pipe, a portion of the outer surface of said light pipe being translucent permitting light to exit therefrom, the sign further carrying electrical circuit means for energizing said light source, and means for mounting the at least one light pipe to display the predetermined message or design;
For use as a light source in a sign a light pipe having at least two ends of a suitable material of substantially uniform index of refraction, having a longitudinal axis of extension, and carrying at least one light source being a light emitting diode proximate at least one end wherein the at least one light source is contained in said at least one end, said light source directed towards another end of the light pipe in the direction of the longitudinal axis of extension of the light pipe, a portion of the outer surface of the light pipe being translucent permitting light to exit therefrom, whereby when light is transmitted in the light pipe, the light therefrom emerges through the translucent outer surface of the light pipe.
A light pipe for use as illuminating elements in signs, said light pipe comprising at least one portion having two ends, of a suitable material of substantially the uniform index of refraction, having a longitudinal axis of extension and having contained in at least one end thereof a light source being a light-emitting diode, the light source directed toward the other end of the light pipe in the direction of the longitudinal axis of extension of the light pipe, the light pipe having disposed adjacent the light source means for scattering some of the light from the light source within the pipe at an angle greater than the critical angle of total internal reflection for the material from which the light pipe is made, a portion of the outer surface of the light pipe being translucent permitting light to exit therefrom;
An exit sign comprising a housing having a frame, circuit means, a plurality of light pipes, and power supply means:
Dependencies are inferred from the claim text.