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Air treatment device and method

  • US 4,995,555 A
  • Filed: 11/14/1988
  • Issued: 02/26/1991
  • Est. Priority Date: 11/14/1988
  • Status: Expired due to Term
First Claim
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1. An air treating device comprising a liquid reservoir having a mouth opening, a base supporting and surrounding a liquid absorbent material, piercing means extending upwardly from said base and absorbent material, means for attaching said reservoir to said base such that said piercing means is in direct alignment with said mouth opening, and liquid metering control means surrounding said piercing means and between said mouth opening and said absorbent material, whereby said device provides a rate of dispersion which is substantially even over an extended period of time, and wherein said liquid metering control means is an effectively distant ebb height between the bottom of said mouth opening and the top surface of said absorbent material, said effective ebb height being adapted to hydraulically cease flow from said reservoir when said absorbent material is saturated and prevent contact between said absorbent material and said mouth opening.

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