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Delivery system for dispensing volatiles

  • US 6,293,474 B1
  • Filed: 02/07/2000
  • Issued: 09/25/2001
  • Est. Priority Date: 03/08/1999
  • Status: Expired due to Term
First Claim
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1. In an atomizer for dispensing a liquid active material, the combination of, a container for said liquid, an orifice plate having apertures therein, said plate being vibrated by a piezoelectric element, a capillary feed mechanism positioned to supply said liquid from said container to said orifice plate, said capillary feed mechanism comprising a highly porous and compliant wick and a wick holder arranged to hold said wick in a position such that it contacts the orifice plate to provide liquid to said orifice plate, the compliance of said wick being appropriate to cause negligible damping of said orifice plate.

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