Patents Assigned to ESTECH USA, LLC
  • Patent number: 9150799
    Abstract: A system and method for processing solid waste products includes an autoclave, a combined heat and power generation system and a water treatment system. Water in the solid waste products is vaporized to raise steam, by heating the autoclave. Waste liquids, steam and cellulosic material are removed from the autoclave. The cellulosic material is combusted in the heat and power generation system, which generates steam and electricity, with the steam recycled to the autoclave. The steam and the waste liquids are processed in the water treatment system, with the cleaned water cycled to the heat and power generation system to be converted into steam.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: October 6, 2015
    Assignee: Estech USA, LLC
    Inventors: Jan K. Michalek, Theodore J. Thomas
  • 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
  • Patent number: 9125962
    Abstract: The present invention includes an apparatus and method for processing solid waste products. The invention features periodic removal of water preferably while the contents are under pressure. The apparatus comprises a rotatably mounted cylindrical vessel having a first end, a second end and an interior surface, at least one end terminating in a hatch that may be opened to allow access to the interior of the vessel and sealably closed to allow pressurization of the vessel; a steam inlet for injecting stem disposed at one or both ends; and one or more valves for exhausting water periodically as the waste mass is being processed.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: September 8, 2015
    Assignee: ESTECH USA, LLC
    Inventors: Jan Michalek, Theodore Thomas
  • Publication number: 20130309143
    Abstract: The invention includes an apparatus, system, waste treatment facility and method of autoclave loading and treatment that involves (a) receiving solid waste at a solid waste treatment facility; (b) compressing the waste into a plurality of compressed bales, the compressed bales bound by a binding material adapted to melt at a temperature at which an autoclave operates or otherwise break upon the operation of the autoclave; (c) loading the compressed bales into an autoclave; and (d) operating the autoclave so as to melt or break the binding material to allow the compressed bales of solid waste to be decompressed and treated in the autoclave.
    Type: Application
    Filed: July 23, 2013
    Publication date: November 21, 2013
    Applicant: ESTECH USA, LLC
    Inventors: Jan K. MICHALEK, Theodore J. THOMAS