Patent ID: 7514048
Filing Date: 2009-04-07
Classification: A61L

Abstract:
1. A controlled odor generator, comprising: a central processing unit; and at least one micropump unit, each having a fan for evenly distributing odorous fluid ejected by said at least one micropump unit; and a sensor unit having at least one sensor located in an environment suitable for human occupation; wherein said central processing unit controls said at least one micropump array element pumping a fluid, in tiny droplets into said environment suitable for human occupation, thereby changing odor in the surrounding air, and wherein for each of said at least one micropump units said casing is detachable from a base for easy replacement; and wherein each micropump in said at least one micropump array element is a piezoelectric micropump, with each pump chamber thereof being defined by said nozzle plate on one side and a vibrating plate on an opposing side, with a piezoelectric plate attached to an exterior surface of said vibrating plate opposite said pump chamber; whereby energizing said piezoelectric plate causes the vibrating plate to vibrate, thereby causing droplets of odorous fluid to be ejected through at least one of said nozzles.