Patents by Inventor John Stewart Lang

John Stewart Lang 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).

  • BIOREACTORS AND METHODS OF USE
    Publication number: 20220315880
    Abstract: The inventions described herein concern improved bioreactors and methods of aerating fluids.
    Type: Application
    Filed: March 22, 2022
    Publication date: October 6, 2022
    Inventor: John Stewart Lang
  • System and method for treating wastewater
    Patent number: 10604429
    Abstract: The invention comprises an activated sludge treatment system and process that aerates wastewater undergoing treatment using venturis.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: March 31, 2020
    Assignee: New Evironmental Engineering, Inc.
    Inventor: John Stewart Lang
  • System and method for treating wastewater
    Patent number: 10246359
    Abstract: The invention comprises an activated sludge treatment system and process that aerates wastewater undergoing treatment using venturis.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: April 2, 2019
    Assignee: New Environmental Engineering, Inc.
    Inventor: John Stewart Lang
  • SYSTEM AND METHOD FOR TREATING WASTEWATER
    Publication number: 20190039925
    Abstract: The invention comprises an activated sludge treatment system and process that aerates wastewater undergoing treatment using venturis.
    Type: Application
    Filed: September 20, 2018
    Publication date: February 7, 2019
    Applicant: New Environmental Engineering, Inc.
    Inventor: John Stewart Lang
  • VENTURI APPARATUS AND METHOD OF USE
    Publication number: 20180162757
    Abstract: The invention comprises an improved venturi apparatus and method of use.
    Type: Application
    Filed: February 7, 2018
    Publication date: June 14, 2018
    Applicant: New Environmental Engineering, Inc.
    Inventor: John Stewart Lang
  • System and Method for Treating Wastewater
    Publication number: 20170327395
    Abstract: The invention comprises an activated sludge treatment system and process that aerates wastewater undergoing treatment using venturis.
    Type: Application
    Filed: May 15, 2017
    Publication date: November 16, 2017
    Applicant: New Environmental Engineering, Inc.
    Inventor: John Stewart Lang
  • Hydraulic jet flash mixer with gas diffusion port in the flow deflector
    Publication number: 20040246813
    Abstract: A invention chemicals in the form of gases, into a fluid stream. The mixing system withdraws a side stream of fluid from a main fluid stream. The side stream is pressurized and directed through a convergent nozzle, producing a high-velocity jet. This jet is directed onto a deflector plate located on the center line of the conduit that carries the main fluid stream and is thereby diverted in the radial directions normal to the flow direction of the main fluid stream. The deflector is provided with an gas diffudion port for injecting the chemicals that are to be mixed into the main stream. The even distribution of the injected chemicals is ensured by the hydrodynamic forces generated by the flow of the high-velocity jet over the deflector.
    Type: Application
    Filed: May 20, 2002
    Publication date: December 9, 2004
    Inventor: John Stewart Lang
  • Second embodiment
    Publication number: 20020149995
    Abstract: A invention mixes chemicals in the form of gases, into a fluid stream. The mixing system withdraws a side stream of fluid from a main fluid stream. The side stream is pressurized and directed through a convergent nozzle, producing a high-velocity jet. This jet is directed onto a deflector plate located on the center line of the conduit that carries the main fluid stream and is thereby diverted in the radial directions normal to the flow direction of the main fluid stream. The deflector is provided with a gas diffusion port for injecting the chemicals that are to be mixed into the main stream. The even distribution of the injected chemicals is ensured by the hydrodynamic forces generated by the flow of the high-velocity jet over the deflector. The invention is a continuation in part of application Ser. No. 09/399,390.
    Type: Application
    Filed: June 4, 2002
    Publication date: October 17, 2002
    Inventor: John Stewart Lang
  • Hydraulic jet flash mixer with open injection port in the flow deflector
    Patent number: 6422735
    Abstract: A hydraulic jet flash mixer injects chemicals in the form of liquids, or slurries, or gases, into a fluid stream. The mixing system withdraws a side stream of fluid from a main fluid stream. The side stream is pressurized and directed through a convergent nozzle, producing a high-velocity jet. This jet is directed onto a deflector plate located on the center line of the conduit that carries the main fluid stream and is thereby diverted in the radial directions normal to the flow direction of the main fluid stream. The deflector is provided with an open port for injecting the chemicals that are to be mixed into the main stream. The even distribution of the injected chemicals is ensured by the hydrodynamic forces generated by the flow of the high-velocity jet over the deflector.
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: July 23, 2002
    Inventor: John Stewart Lang