×

Method of washing laundry using ozone to degrade organic material

  • US 6,620,210 B2
  • Filed: 05/14/2002
  • Issued: 09/16/2003
  • Est. Priority Date: 07/13/1993
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method of washing laundry without detergent comprising the steps of:

  • agitating laundry in an enclosed, substantially sealed vessel filled with water;

    introducing and bubbling a gas having an ozone concentration greater than about 7 weight percent into the water;

    contacting the laundry with the ozonated water for a period of time sufficient to allow the ozone to clean the laundry;

    discarding the ozonated water from the vessel;

    allowing the residual ozone on the laundry to decompose; and

    removing the clean laundry from the vessel.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×