Back to results
US 4,403,775 AGranted
Random indicia selector
OwnerJoseph R. Chaputinventor
Life of this patent
Estimating the term…
Abstract
A random number selector has a compartment that accommodates balls of two contrasting colors, e.g., black and white. Overlying the compartment is a window on which are marked indicia to be selected, e.g., numbers. The indicia also are black. Certain of the numbers are masked and rendered invisible by the black balls located behind them. The numbers to be selected are highlighted by the color-contrasting white balls.
Claims13
Apparatus for randomly selecting at least one indicia comprising a container having an enclosed compartment having at least first and second sections communicating with each other;
- a plurality of balls located in said compartment and moveable between said two sections thereof, some of said balls being of a first colour and at least one of said balls being of a second colour;
- a window in said container through which said balls in said second section can be viewed;
- a plurality of indicia also viewable when viewing said second section through said window, said indicia being of a colour that does not contrast with said first colour but does contrast with said second colour, said second section, balls, window and indicia being so constructed and arranged that when said balls are in said second section they are located behind said indicia relative to a person looking into said second section through said window and said indicia that are adjacent said balls of said first colour are masked by said colour of said balls of said first colour and thereby rendered substantially invisible, while said at least one ball of said second colour forms a colour contrasting background for the one of said indicia adjacent thereto and highlighting the latter indicia as the one to be selected.
Dependencies are inferred from the claim text.