Patent ID: 6799885
Filing Date: 2004-10-05
Classification: G04F

Abstract:
A method for improving the time it takes for sand or other like substances to flow from an upper compartment to a lower compartment of an hour-glass, the method comprising the steps of:providing an hour-glass having: a housing formed of a premolded clear flexible polymer or similar material in the shape of the hour-glass which can increase the time in which the sand or other like substances can run through a flow canal of the hour-glass; applying pressure on the sides of the flow canal of the flexible polymer housing of the hour-glass and thus opening the flow canal allowing the sand or other like substances to run freely and fill the desired compartment of the hour-glass; releasing the pressure on the sides of the flow canal of the flexible polymer housing of the hour-glass and thus allowing the flow canal to return to an original form.