Patent ID: 7774963
Filing Date: 2010-08-17
Classification: G09F

Abstract:
1. A display device comprises: (a) a tubular body defining an axis and having a dimension; (b) a plurality of sleeve elements, each sleeve element having a through opening for axially sleeving over said body, each sleeve element having a plurality of outer surfaces, with each surface having indicia thereon; wherein said through opening having an uniform cross-sectional shape of a circle with at least one notch extending beyond the perimeter of said circle, and dimensioned to be slightly larger than said dimension of said tubular body, and wherein each of said notch having a generally isosceles trapezoidal shape with rounded corners such that each sleeve element is frictionally rotatable in a controlled manner around said axis with ease to display different messages based on the relative positioning of said indicia on said outer surfaces.