Patents by Inventor Qingfu Xu
Qingfu Xu 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).
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Patent number: 11453991Abstract: The present invention is a grouting method for single pile rock-socketed foundation for offshore wind power, comprising: driving a steel casing into an overburden layer to dig the overburden layer and a rock stratum so as to dig a pile hole; hoisting a steel pipe pile into the steel casing and positioning the steel pipe pile in the pile hole, wherein an annular cavity is formed between the inner walls of the steel pipe pile and the pile hole and the bottom of the steel casing; grouting a first grouting layer to the bottom of a pipe hole of the steel pipe pile; grouting a plurality of grouting layers into the upper end of the first grouting layer in the annular cavity; and pulling out the steel casing, wherein after a grouting solution is aged, the steel pipe pile is stably connected to the overburden layer and the rock stratum.Type: GrantFiled: April 29, 2021Date of Patent: September 27, 2022Assignee: ZHEJIANG UNIVERSITYInventors: Ronghua Zhu, Hengfeng Wang, Zhenya Tian, Hanqiu Liu, Zhisheng Tu, Xiang Sun, Qingfu Xu, Peiling Chen
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Patent number: 11414826Abstract: The present invention belongs to the technical field of offshore wind power construction and particularly relates to a system and a method for sealing expanded polymer-based pile shoes for a jacket. The system comprises a jacket disposed on a seabed, several pile shoes arranged around a lower end of the jacket, and several steel pipe piles inserted into the seabed, wherein the steel pipe piles are inserted into the corresponding pile shoes. The system is characterized in that gaps between the pile shoes and the steel pipe piles are respectively filled with concrete and an expanded high polymer from top to bottom, an annular elastic diaphragm is further connected to the inner walls of the pile shoes, and the expanded polymer is wrapped by the elastic diaphragm, such that the expanded polymer is isolated from the steel pipe piles and the concrete.Type: GrantFiled: April 29, 2021Date of Patent: August 16, 2022Assignee: ZHEJIANG UNIVERSITYInventors: Ronghua Zhu, Fuming Wang, Xiang Sun, Hengfeng Wang, Qingfu Xu
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Publication number: 20220081781Abstract: The present invention belongs to the field of offshore wind power and, in particular, relates to system for transporting hydrogen produced from seawater and method based on an existing offshore wind power plant. The system comprises a wind generator, a seawater electrolytic cell device and a hydrogen transporting unit, wherein the wind generator is configured for converting wind energy into electric energy, the seawater electrolytic cell device is configured for electrolyzing seawater by making using of electric energy supplied by the wind generator and the hydrogen transporting unit is configured for transporting hydrogen produced by the seawater electrolytic cell device to a land. According to the present invention, by combining offshore wind power with seawater hydrogen production, resource advantages of the offshore wind power plant is utilized fully, so that the seawater hydrogen production cost is lowered.Type: ApplicationFiled: April 29, 2021Publication date: March 17, 2022Applicant: ZHEJIANG UNIVERSITYInventors: Ronghua ZHU, Hengfeng WANG, Zhisheng TU, Hanqiu LIU, Xiang SUN, Qingfu XU, Peiling CHEN
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Publication number: 20220025605Abstract: The present invention is a grouting method for single pile rock-socketed foundation for offshore wind power, comprising: driving a steel casing into an overburden layer to dig the overburden layer and a rock stratum so as to dig a pile hole; hoisting a steel pipe pile into the steel casing and positioning the steel pipe pile in the pile hole, wherein an annular cavity is formed between the inner walls of the steel pipe pile and the pile hole and the bottom of the steel casing; grouting a first grouting layer to the bottom of a pipe hole of the steel pipe pile; grouting a plurality of grouting layers into the upper end of the first grouting layer in the annular cavity; and pulling out the steel casing, wherein after a grouting solution is aged, the steel pipe pile is stably connected to the overburden layer and the rock stratum.Type: ApplicationFiled: April 29, 2021Publication date: January 27, 2022Applicant: ZHEJIANG UNIVERSITYInventors: Ronghua ZHU, Hengfeng WANG, Zhenya TIAN, Hanqiu LIU, Zhisheng TU, Xiang SUN, Qingfu XU, Peiling CHEN
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Publication number: 20210404136Abstract: The present invention belongs to the technical field of offshore wind power construction and particularly relates to a system and a method for sealing expanded polymer-based pile shoes for a jacket. The system comprises a jacket disposed on a seabed, several pile shoes arranged around a lower end of the jacket, and several steel pipe piles inserted into the seabed, wherein the steel pipe piles are inserted into the corresponding pile shoes. The system is characterized in that gaps between the pile shoes and the steel pipe piles are respectively filled with concrete and an expanded high polymer from top to bottom, an annular elastic diaphragm is further connected to the inner walls of the pile shoes, and the expanded polymer is wrapped by the elastic diaphragm, such that the expanded polymer is isolated from the steel pipe piles and the concrete.Type: ApplicationFiled: April 29, 2021Publication date: December 30, 2021Applicant: ZHEJIANG UNIVERSITYInventors: Ronghua ZHU, Fuming WANG, Xiang SUN, Hengfeng WANG, Qingfu XU
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Patent number: 9283198Abstract: The subject invention provides materials and methods for treating various health conditions, including the prevention and/or treatment of a viral infection. In a preferred embodiment, a cysteamine compound is administered to a subject to treat an influenza virus infection. More preferably, a cysteamine compound is administered to a subject to treat influenza A, influenza B, influenza C virus infections, including avian influenza virus subtypes (such as H5N1 avian influenza virus).Type: GrantFiled: April 4, 2013Date of Patent: March 15, 2016Assignee: OBIO PHARMACEUTICAL (H.K.) LIMITEDInventors: Hao Yi Liang, Francis Chi, Qingfu Xu, Bill Piu Chan
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Publication number: 20130338113Abstract: The subject invention provides materials and methods for treating various health conditions, including the prevention and/or treatment of a viral infection. In a preferred embodiment, a cysteamine compound is administered to a subject to treat an influenza virus infection. More preferably, a cysteamine compound is administered to a subject to treat influenza A, influenza B, influenza C virus infections, including avian influenza virus subtypes (such as H5N1 avian influenza virus).Type: ApplicationFiled: April 4, 2013Publication date: December 19, 2013Applicant: OBIO PHARMACEUTICAL (H.K.) LIMITEDInventors: HAO YI LIANG, FRANCIS CHI, QINGFU XU, BILL PIU CHAN
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Patent number: 8415398Abstract: The subject invention provides materials and methods for treating various health conditions, including the prevention and/or treatment of a viral infection. In a preferred embodiment, a cysteamine compound is administered to a subject to treat an influenza virus infection. More preferably, a cysteamine compound is administered to a subject to treat influenza A, influenza B, influenza C virus infections, including avian influenza virus subtypes (such as H5N1 avian influenza virus).Type: GrantFiled: November 28, 2006Date of Patent: April 9, 2013Assignee: Obio Pharmaceutical (H.K.) LimitedInventors: Hao Yi Liang, Francis Chi, Qingfu Xu, Bill Piu Chan
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Publication number: 20120003241Abstract: The invention relates to novel DNA and protein vaccines against Clostridium botulinum. The DNA vaccine includes a DNA molecule that includes a first segment encoding a fragment of a heavy chain region of a Clostridium botulinum neurotoxin, wherein the first segment is codon-enhanced to improve expression of the isolated DNA molecule in a mammalian host, and preferably a second segment that encodes a secretion signal peptide. The chimeric protein of the present invention includes the secretion signal peptide linked N-terminal of the fragment of a heavy chain region of a Clostridium botulinum neurotoxin. Use of these materials to raise antibodies, and to impart resistance against Clostridium botulinum to a mammal is also disclosed.Type: ApplicationFiled: August 8, 2008Publication date: January 5, 2012Applicant: UNIVERSITY OF ROCHESTERInventors: Mingtao Zeng, Michael E. Pichichero, Qingfu Xu
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Publication number: 20100151042Abstract: The subject invention provides materials and methods for treating various health conditions, including the prevention and/or treatment of an influenza viral infection. In a preferred embodiment, a cysteamine compound and viral therapeutic are concurrently administered to a subject to treat an influenza virus infection. More preferably, a cysteamine compound is concurrently administered with a viral therapeutic to a subject to treat influenza A, influenza B, influenza C virus infections, including avian influenza virus subtypes (such as H5N1 avian influenza virus).Type: ApplicationFiled: May 27, 2008Publication date: June 17, 2010Inventors: Hao Yi Liang, Francis Chi, Qingfu Xu, Bill Piu Chan
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Publication number: 20070135525Abstract: The subject invention provides materials and methods for treating various health conditions, including the prevention and/or treatment of a viral infection. In a preferred embodiment, a cysteamine compound is administered to a subject to treat an influenza virus infection. More preferably, a cysteamine compound is administered to a subject to treat influenza A, influenza B, influenza C virus infections, including avian influenza virus subtypes (such as H5N1 avian influenza virus).Type: ApplicationFiled: November 28, 2006Publication date: June 14, 2007Inventors: Hao Liang, Francis Chi, Qingfu Xu, Bill Chan