Patents by Inventor Li-Zheng Ma

Li-Zheng Ma 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).

  • Patent number: 9174858
    Abstract: In one of its aspects, the present invention relates to a fluid treatment system comprising: an inlet; an outlet; a fluid treatment zone disposed between the inlet and the outlet. The fluid treatment zone: (i) comprises a first wall surface and a second wall surface opposed to the first wall surface, and (ii) having disposed therein at least one array of rows of radiation source assemblies. Each radiation source assembly has a longitudinal axis transverse to a direction of fluid flow through the fluid treatment zone and each of the first wall surface and the second wall surface comprises a first fluid deflector element and a second fluid deflector element. The first fluid deflector element projecting into the fluid treatment zone to a greater extent than the second fluid deflector element.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: November 3, 2015
    Assignee: Trojan Technologies
    Inventors: Li Zheng Ma, George Traubenberg, Douglas Penhale
  • Patent number: 8679416
    Abstract: There is described a fluid treatment system. The fluid treatment system comprises: an open channel for receiving a flow of fluid and a fluid treatment zone. The fluid treatment zone comprising a plurality of elongate radiation source assemblies orientated such that: (i) a longitudinal axis of each radiation source assembly is transverse to a direction of fluid flow through the fluid treatment zone, and (ii) an end of each radiation source assembly is disposed above a predetermined maximum height of fluid flow in the open channel. A first baffle plate is disposed upstream of the fluid treatment zone. The first baffle plate is positioned such that a distal end thereof is below the predetermined maximum height of fluid flow in the open channel. In a preferred embodiment, the present fluid treatment system provides for an area in which a cleaning system for the radiation source assemblies can be “parked” when not in use.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: March 25, 2014
    Assignee: Trojan Technologies
    Inventors: George Traubenberg, Douglas Penhale, Li-Zheng Ma
  • Publication number: 20110006223
    Abstract: There is disclosed a radiation source assembly comprising an elongate radiation emitting outer portion having non-circular cross-sectional shape and an elongate radiation source. A radiation source module and a fluid system incorporating the radiation source assembly are also disclosed. It has been discovered that the use of a non-circular shaped sleeve or outer lamp surface reduces the stress placed on these elements in a fluid treatment system in which the radiation source assemblies are disposed transverse (e.g., orthogonal) to the direction of fluid flow through the fluid treatment zone of the system.
    Type: Application
    Filed: December 12, 2008
    Publication date: January 13, 2011
    Applicant: TROJAN TECHNOLOGIES
    Inventors: Li-Zheng Ma, George Traubenberg
  • Publication number: 20100193421
    Abstract: In one of its aspects, the present invention relates to a fluid treatment system comprising: an inlet; an outlet; a fluid treatment zone disposed between the inlet and the outlet. The fluid treatment zone: (i) comprises a first wall surface and a second wall surface opposed to the first wall surface, and (ii) having disposed therein at least one array of rows of radiation source assemblies. Each radiation source assembly has a longitudinal axis transverse to a direction of fluid flow through the fluid treatment zone and each of the first wall surface and the second wall surface comprises a first fluid deflector element and a second fluid deflector element. The first fluid deflector element projecting into the fluid treatment zone to a greater extent than the second fluid deflector element.
    Type: Application
    Filed: November 6, 2007
    Publication date: August 5, 2010
    Applicant: Trojan Technologies
    Inventors: Li Zheng Ma, George Traubenberg, Douglas Penhale
  • Publication number: 20080044320
    Abstract: There is described a fluid treatment system. The fluid treatment system comprises: an open channel for receiving a flow of fluid and a fluid treatment zone. The fluid treatment zone comprising a plurality of elongate radiation source assemblies orientated such that: (i) a longitudinal axis of each radiation source assembly is transverse to a direction of fluid flow through the fluid treatment zone, and (ii) an end of each radiation source assembly is disposed above a predetermined maximum height of fluid flow in the open channel. A first baffle plate is disposed upstream of the fluid treatment zone. The first baffle plate is positioned such that a distal end thereof is below the predetermined maximum height of fluid flow in the open channel. In a preferred embodiment, the present fluid treatment system provides for an area in which a cleaning system for the radiation source assemblies can be “parked” when not in use.
    Type: Application
    Filed: August 17, 2007
    Publication date: February 21, 2008
    Applicant: TROJAN TECHNOLOGIES INC.
    Inventors: George Traubenberg, Douglas Penhale, Li-Zheng Ma