Color changing hourglass assembly

Details Color changing hourglass assembly Color changing hourglass assembly

A - Human Necessities

63

H

A63H 33/22 (2006.01) G04F 1/06 (2006.01)

Patent

CA 2177457

A color-changing, position-reversible hourglass assembly having two transparent bulbs one above the other and a storage compartment adjacent each bulb, the bulbs and compartments being joined together by a neck. Intercoupling the bulbs and the compartments is a crossover network which passes through the neck to couple each bulb to the compartment adjacent the other bulb. In operation, when one bulb and its adjacent compartment are in an up position and are respectively loaded with sand of different color, then sand of one color appears to trickle from the up bulb into the compartment in the down position while sand of another color appears to trickle from the up compartment into the down bulb. The resultant apparent flow of sand from a higher to a lower level creates the illusion that sand flowing out of the up bulb is undergoing a color transformation as it flows into the down bulb.

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