Patents by Inventor Leong Soon Lee

Leong Soon Lee 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).

  • Method and apparatus for treating waste involving control of energy input to assure sterilization
    Patent number: 9149554
    Abstract: The present invention is a method and apparatus for controlling the processing solid waste material in a vessel during a processing cycle, including: (1) loading the vessel with a charge of solid waste products, said vessel including: (a) a rotatably mounted cylindrical vessel having an interior surface and two ends, at least one end terminating in a hatch that may be opened to allow access to the interior of said vessel and sealably closed to allow pressurization of said vessel; (b) a vessel steam inlet for injecting steam into at least one of said ends so as to come into contact with waste material placed into said vessel; (c) a thermometer adapted to monitor the processing temperature of the waste material placed into said vessel during an operational cycle; (d) a timer adapted to monitor the processing time of an operational cycle for the waste material placed into said vessel; (e) a microprocessor having processing instructions adapted to calculate the required processing time by integrating the function
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: October 6, 2015
    Assignee: Estech USA, LLC
    Inventors: Jan K. Michalek, Theodore J. Thomas, Leong Soon Lee
  • METHOD AND APPARATUS FOR TREATING WASTE INVOLVING CONTROL OF ENERGY INPUT TO ASSURE STERILIZATION
    Publication number: 20100200683
    Abstract: The present invention is a method and apparatus for controlling the processing solid waste material in a vessel during a processing cycle, comprising: (1) loading the vessel with a charge of solid waste products, said vessel comprising: (a) a rotatably mounted cylindrical vessel having an interior surface and two ends, at least one end terminating in a hatch that may be opened to allow access to the interior of said vessel and sealably closed to allow pressurization of said vessel; (b) a vessel steam inlet for injecting steam into at least one of said ends so as to come into contact with waste material placed into said vessel; (c) a thermometer adapted to monitor the processing temperature of the waste material placed into said vessel during an operational cycle; (d) a timer adapted to monitor the processing time of an operational cycle for the waste material placed into said vessel; (e) a microprocessor having processing instructions adapted to calculate the required processing time by integrating the functi
    Type: Application
    Filed: January 21, 2010
    Publication date: August 12, 2010
    Applicant: ESTECH, LLC
    Inventors: Jan K. Michalek, Theodore J. Thomas, Leong Soon Lee