Patents by Inventor Zhong Xia

Zhong Xia 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: 10651646
    Abstract: A fault current limiter, including: two inductors, a direct current circuit breaker, a shunt resistor, a first fixed resistor, and metal oxide arresters. The two inductors include wound superconducting wires. The inductors have identical number of windings and identical structure. Magnetic fluxes of the inductors are forward coupled, and the inductors are connected in parallel to form a superconducting inductor structure. The direct current circuit breaker and the superconducting inductor structure are connected in series to form a series branch. The shunt resistor is connected in parallel to the series branch. The first fixed resistor is connected in parallel to the direct current circuit breaker. The metal oxide arresters are two in number, and are connected to two ends of the inductors in parallel.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: May 12, 2020
    Assignee: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Li Ren, Siyuan Liang, Yuejin Tang, Ying Xu, Zhong Xia, Zuoshuai Wang, Jing Shi, Jingdong Li, Lihui Zhang, Sinian Yan, Zhangwei Yang, Yi Zhang
  • Patent number: 10424918
    Abstract: A fault current limiter, including: an inductor, a direct current circuit breaker, a shunt resistor, and a first fixed resistor. The inductor includes wound superconducting wires. The direct current circuit breaker and the inductor are connected in series to form a series branch. The shunt resistor is connected in parallel to the series branch. The first fixed resistor is connected in parallel to the direct current circuit breaker.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: September 24, 2019
    Assignee: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Li Ren, Siyuan Liang, Yuejin Tang, Ying Xu, Zhong Xia, Zuoshuai Wang, Jing Shi, Jingdong Li, Lihui Zhang, Sinian Yan, Zhangwei Yang, Yi Zhang
  • Publication number: 20180248363
    Abstract: A fault current limiter, including: two inductors, a direct current circuit breaker, a shunt resistor, a first fixed resistor, and metal oxide arresters. The two inductors include wound superconducting wires. The inductors have identical number of windings and identical structure. Magnetic fluxes of the inductors are forward coupled, and the inductors are connected in parallel to form a superconducting inductor structure. The direct current circuit breaker and the superconducting inductor structure are connected in series to form a series branch. The shunt resistor is connected in parallel to the series branch. The first fixed resistor is connected in parallel to the direct current circuit breaker. The metal oxide arresters are two in number, and are connected to two ends of the inductors in parallel.
    Type: Application
    Filed: June 13, 2017
    Publication date: August 30, 2018
    Inventors: Li REN, Siyuan LIANG, Yuejin TANG, Ying XU, Zhong XIA, Zuoshuai WANG, Jing SHI, Jingdong LI, Lihui ZHANG, Sinian YAN, Zhangwei YANG, Yi ZHANG
  • Publication number: 20180248362
    Abstract: A fault current limiter, including: an inductor, a direct current circuit breaker, a shunt resistor, and a first fixed resistor. The inductor includes wound superconducting wires. The direct current circuit breaker and the inductor are connected in series to form a series branch. The shunt resistor is connected in parallel to the series branch. The first fixed resistor is connected in parallel to the direct current circuit breaker.
    Type: Application
    Filed: April 19, 2017
    Publication date: August 30, 2018
    Inventors: Li REN, Siyuan LIANG, Yuejin TANG, Ying XU, Zhong XIA, Zuoshuai WANG, Jing SHI, Jingdong LI, Lihui ZHANG, Sinian YAN, Zhangwei YANG, Yi ZHANG
  • Patent number: 9062155
    Abstract: The present invention relates to a method for producing an organometallic catalyst and an organometallic catalyst when produced by the method. The method comprises the steps of combining a polycarboxylic acid or anhydride and a metal-oxide, metal-hydroxide or metal-salt with a solvent at a temperature and pressure at which the solvent exists as a supercritical or near-critical fluid. The polycarboxylic acid or anhydride is reacted with the metal-oxide, metal-hydroxide or metal-salt for sufficient time and under sufficient temperature and pressure to produce the organometallic catalyst. The present invention also relates to a process for making a poly(alkylene carbonate) in the presence of a catalytic amount of the organometallic catalyst produced by the method.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: June 23, 2015
    Assignee: University of Sydney
    Inventors: Fariba Dehghani, Zhong Xia
  • Publication number: 20130331544
    Abstract: The present invention relates to a method for producing an organometallic catalyst and an organometallic catalyst when produced by the method. The method comprises the steps of combining a polycarboxylic acid or anhydride and a metal-oxide, metal-hydroxide or metal-salt with a solvent at a temperature and pressure at which the solvent exists as a supercritical or near-critical fluid. The polycarboxylic acid or anhydride is reacted with the metal-oxide, metal-hydroxide or metal-salt for sufficient time and under sufficient temperature and pressure to produce the organometallic catalyst. The present invention also relates to a process for making a poly(alkylene carbonate) in the presence of a catalytic amount of the organometallic catalyst produced by the method.
    Type: Application
    Filed: July 18, 2013
    Publication date: December 12, 2013
    Applicant: The University of Sydney
    Inventors: Fariba Dehghani, Zhong Xia
  • Patent number: 8507708
    Abstract: The present invention relates to a method for producing an organometallic catalyst and an organometallic catalyst when produced by the method. The method comprises the steps of combining a polycarboxylic acid or anhydride and a metal-oxide, metal-hydroxide or metal-salt with a solvent at a temperature and pressure at which the solvent exists as a supercritical or near-critical fluid. The polycarboxylic acid or anhydride is reacted with the metal-oxide, metal-hydroxide or metal-salt for sufficient time and under sufficient temperature and pressure to produce the organometallic catalyst. The present invention also relates to a process for making a poly(alkylene carbonate) in the presence of a catalytic amount of the organometallic catalyst produced by the method.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: August 13, 2013
    Assignee: The University of Sydney
    Inventors: Fariba Dehghani, Zhong Xia
  • Publication number: 20110319645
    Abstract: The present invention relates to a method for producing an organometallic catalyst and an organometallic catalyst when produced by the method. The method comprises the steps of combining a polycarboxylic acid or anhydride and a metal-oxide, metal-hydroxide or metal-salt with a solvent at a temperature and pressure at which the solvent exists as a supercritical or near-critical fluid. The polycarboxylic acid or anhydride is reacted with the metal-oxide, metal-hydroxide or metal-salt for sufficient time and under sufficient temperature and pressure to produce the organometallic catalyst. The present invention also relates to a process for making a poly(alkylene carbonate) in the presence of a catalytic amount of the organometallic catalyst produced by the method.
    Type: Application
    Filed: December 18, 2009
    Publication date: December 29, 2011
    Applicant: University of Sydney
    Inventors: Fariba Dehghani, Zhong Xia
  • Publication number: 20080245673
    Abstract: The present invention provides a system for generating hydrogen gas in an aqueous solution based electrolytic or galvanic cell wherein the cathode is made from aluminum or an aluminum alloy. In a preferred arrangement the cell is a galvanic cell and cathode is made from aluminum or aluminum alloy and the anode is made from magnesium or magnesium alloy.
    Type: Application
    Filed: June 12, 2008
    Publication date: October 9, 2008
    Inventors: Debabrata Ghosh, Asoke Chandra Das Chaklader, Zhaolin Tang, Zhong Xia