Patents by Inventor Zhuomin Liu

Zhuomin Liu 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: 10325715
    Abstract: A low profile electromagnetic component assembly for a circuit board such as a power inductor includes a first shaped magnetic core piece comprising a bottom surface for seating upon the circuit board, a top surface opposing the bottom surface, and a groove defined on the top surface. A conductive coil winding includes first and second terminal sections and a center main winding section extending between the first and second terminal sections. The center main winding section comprises an elongated strip of conductor having a thickness oriented extend to perpendicular to a plane of the circuit board. The terminal sections define a different cross sectional area of conductor than in the center main winding section.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: June 18, 2019
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Clarita Chiting Knoll, Zhuomin Liu, Ramdev Kanapady
  • Publication number: 20180102210
    Abstract: A low profile electromagnetic component assembly for a circuit board such as a power inductor includes a first shaped magnetic core piece comprising a bottom surface for seating upon the circuit board, a top surface opposing the bottom surface, and a groove defined on the top surface. A conductive coil winding includes first and second terminal sections and a center main winding section extending between the first and second terminal sections. The center main winding section comprises an elongated strip of conductor having a thickness oriented extend to perpendicular to a plane of the circuit board. The terminal sections define a different cross sectional area of conductor than in the center main winding section.
    Type: Application
    Filed: October 6, 2016
    Publication date: April 12, 2018
    Inventors: Clarita Chiting Knoll, Zhuomin Liu
  • Patent number: 9558881
    Abstract: A surface mount power inductor includes a preformed conductive winding clip and first and second-shaped core pieces. The core pieces may be configured to reduce unbalanced force experienced in the power inductor in certain types of power management circuitry. Reduction in the unbalanced force reduces vibration of the power inductor in use, and in turn reduces acoustic noise as the power inductor operates.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: January 31, 2017
    Assignee: COOPER TECHNOLOGIES COMPANY
    Inventors: Zhuomin Liu, Robert James Bogert
  • Publication number: 20140313003
    Abstract: A surface mount power inductor includes a preformed conductive winding clip and first and second-shaped core pieces. The core pieces may be configured to reduce unbalanced force experienced in the power inductor in certain types of power management circuitry. Reduction in the unbalanced force reduces vibration of the power inductor in use, and in turn reduces acoustic noise as the power inductor operates.
    Type: Application
    Filed: March 18, 2014
    Publication date: October 23, 2014
    Inventors: Zhuomin Liu, Robert James Bogert
  • Patent number: 8221689
    Abstract: A cold arc discharge is used to decompose natural gas or methane into its gaseous constituents and carbon in the form of solid particles. The gaseous constituents obtained are mainly hydrogen and acetylene and they are produced in admixture with unreacted natural gas or methane. The cold arc discharge is generated by a pulsating high voltage discharge imparted through a capacitor to a high voltage electrode or a plurality of high voltage electrodes or through a high voltage electrode to a plurality of capacitor-connected electrodes placed in a reaction zone. The apparatus for performing this process may have a tubular reactor with a cylindrical ground electrode in the middle and a cylindrical outer wall through which the high voltage electrode or electrodes extend into the reaction zone. The apparatus may also have a cylindrical shaft in the middle made of dielectric material in which a plurality of electrodes are embedded, this shaft being surrounded by a high voltage tubular electrode.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: July 17, 2012
    Assignee: Atlantic Hydrogen Inc.
    Inventors: Tobie Jean Boutot, Zhuomin Liu, Kenneth Ricky Buckle, Francis Xavier Collins, Charles Andrew Estey, Donald MacFarlane Fraser, Stanley Jaye Claus, Thomas Keith Whidden
  • Publication number: 20110239542
    Abstract: There is provided a reactor system comprising a plasma generator and a reaction vessel. The plasma generator is configured for effecting a plasma discharge into a reaction zone to produce a plasma plume. The reaction vessel defines the reaction zone. The reaction vessel includes a reactant flow inlet configured for flowing and discharging gaseous reactant flow into the reaction zone, and a stabilizing gaseous flow inlet configured for introducing and effecting vortical flow of a stabilizing gaseous fluid into the reaction vessel. The vortical flow of the stabilizing gaseous fluid effects a spatial disposition of the plasma plume such that at least a fraction of the gaseous reactant flow intersects the plasma plume.
    Type: Application
    Filed: October 1, 2009
    Publication date: October 6, 2011
    Applicant: Atlantic Hydrogen Inc.
    Inventors: Zhuomin Liu, Thomas K. Whidden, Tobie Boutot, Yun Yang
  • Publication number: 20090038933
    Abstract: A cold arc discharge is used to decompose natural gas or methane into its gaseous constituents and carbon in the form of solid particles. The gaseous constituents obtained are mainly hydrogen and acetylene and they are produced in admixture with unreacted natural gas or methane. The cold arc discharge is generated by a pulsating high voltage discharge imparted through a capacitor to a high voltage electrode or a plurality of high voltage electrodes or through a high voltage electrode to a plurality of capacitor—connected electrodes placed in a reaction zone. The apparatus for performing this process may have a tubular reactor with a cylindrical ground electrode in the middle and a cylindrical outer wall through which the high voltage electrode or electrodes extend into the reaction zone. The apparatus may also have a cylindrical shaft in the middle made of dielectric material in which a plurality of electrodes are embedded, this shaft being surrounded by a high voltage tubular electrode.
    Type: Application
    Filed: April 28, 2006
    Publication date: February 12, 2009
    Inventors: Tobie Jean Boutot, Zhuomin Liu, Kenneth Ricky Buckle, Francis Xavier Collins, Charles Andrew Estey, Donald MacFarlane Fraser, Stanley Jaye Claus, Thomas Keith Whidden
  • Publication number: 20080289494
    Abstract: The invention provides methods and apparatus for a cold arc discharge used to decompose natural gas or methane into its gaseous constituents and carbon in the form of solid particles. The gaseous constituents obtained are mainly hydrogen and acetylene and they are produced in admixture with unreacted natural gas or methane.
    Type: Application
    Filed: February 19, 2008
    Publication date: November 27, 2008
    Inventors: Tobie Jean BOUTOT, Zhuomin Liu, Kenneth Ricky Buckle, Francis Xavier Collins, Charles Andrew Estey, Donald MacFarlane Fraser, Stanley Jaye Claus, Thomas Keith Whidden
  • Patent number: 7333349
    Abstract: An improved Single-Stage Buck-Boost inverter (S2B2 Inverter) is provided, using only three or four power semiconductor switches and two coupled inductors in a flyback arrangement. The inverter can handle a wide range of dc input voltages and produce a fixed ac output voltage. The inverter is well suited to distributed power generation systems such as photovoltaic and wind power and fuel cells, for standalone or grid connected applications. The inverter has a single charge loop, a positive discharge loop and a negative discharge loop.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: February 19, 2008
    Assignee: University of New Brunswick
    Inventors: Liuchen Chang, Zhuomin Liu
  • Publication number: 20050270000
    Abstract: An improved Single-Stage Buck-Boost inverter (S2B2 Inverter) is provided, using only three or four power semiconductor switches and two coupled inductors in a flyback arrangement. The inverter can handle a wide range of dc input voltages and produce a fixed ac output voltage. The inverter is well suited to distributed power generation systems such as photovoltaic and wind power and fuel cells, for standalone or grid connected applications. The inverter has a single charge loop, a positive discharge loop and a negative discharge loop.
    Type: Application
    Filed: March 31, 2005
    Publication date: December 8, 2005
    Inventors: Liuchen Chang, Zhuomin Liu