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Low noise air cleaner

  • US 6,361,590 B1
  • Filed: 01/14/2000
  • Issued: 03/26/2002
  • Est. Priority Date: 01/14/2000
  • Status: Expired due to Fees
First Claim
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1. A portable air cleaner having low noise air flow and comprisinga housing defining an air inlet, an air outlet, and an air flow path between said air inlet and said air outlet;

  • a centrifugal blower mounted within said air flow path and operable to draw air through said air inlet;

    a filter mounted within said housing and disposed to transmit air circulating in said air flow path out of said air outlet;

    a conveyor surrounding said blower and defining a scroll shaped passage having one end disposed to receive air from said blower and an opposite end disposed to discharge air into said filter;

    said conveyor being shaped and arranged to obstruct all rectilinear paths between said blower and said opposite end to thereby provide low noise air flow between the air inlet and air outlet.

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  • 5 Assignments
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