Patents by Inventor Virginia F. Engel

Virginia F. Engel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Laundry waste water treatment and wash apparatus
    Patent number: 5181399
    Abstract: A method and apparatus for washing laundry without hot water and detergent using a closed loop ozonated wash water system wherein wash water maintained in a storage tank is ozonated by an ozone generator prior to use in a washing machine. The spent wash water is collected, filtered and reused thereby eliminating waste water disposal problems an resulting in considerable water and energy savings. The ozone generator includes a unique air flow configuration to maximize ozone generation resulting in a high efficiency washing system.
    Type: Grant
    Filed: March 10, 1992
    Date of Patent: January 26, 1993
    Assignee: Tri-O-Clean Laundry Systems, Inc.
    Inventors: Richard B. Engel, John B. Gallo, Donald H. Bladen, Virginia F. Engel
  • Laundry waste water treatment and wash process
    Patent number: 5097556
    Abstract: A method and apparatus for washing laundry without hot water and detergent using a closed loop ozonated wash water system wherein wash water maintained in a storage tank is ozonated by an ozone generator prior to use in a washing machine. The spent wash water is collected, filtered and reused thereby eliminating waste water disposal problems and resulting in considerable water and energy savings. The ozone generator includes a unique air flow configuration to maximize ozone generation resulting in a high efficiency washing system.
    Type: Grant
    Filed: February 26, 1991
    Date of Patent: March 24, 1992
    Assignee: O.sup.3 Technologies, Inc.
    Inventors: Richard B. Engel, John B. Gallo, Donald H. Bladen, Virginia F. Engel