Patents by Inventor Xuqing LANG

Xuqing 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).

  • Foam producing method, fire extinguishing method, and appliance for foam extinguishing
    Patent number: 11980785
    Abstract: A foam production method includes mixing liquid nitrogen with a foaming material to produce foam. A gas is produced in situ from liquid nitrogen. As the ratio of the volume of the gas produced by gasification of liquid nitrogen to the volume of the liquid nitrogen is relatively high, when a large gas supply flow is needed to generate a large foam flow, a liquid nitrogen storage device of a small volume can be used instead of bulky air supply devices such as high-pressure gas cylinders, air compressors, air compressor sets and the like, reducing the volume of the air supply device. In addition, the liquid nitrogen used in foaming will release nitrogen gas after the foam blast, such that the nitrogen is also able to inhibit combustion on the surface of burning materials, accelerating the extinguishing of the fire.
    Type: Grant
    Filed: January 19, 2023
    Date of Patent: May 14, 2024
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, CHINA PETROLEUM & CHEMICAL CORPORATION QINGDAO RESEARCH INSTITUTE OF SAFETY ENGINEERING
    Inventors: Shanjun Mu, Chunming Jiang, Weihua Zhang, Quanzhen Liu, Xuqing Lang, Xiaodong Mu, Lin Wang, Jingfeng Wu, Longmei Tan, Zuzheng Shang, Rifeng Zhou, Jianxiang Li, Hui Yu
  • FOAM PRODUCING METHOD, FIRE EXTINGUISHING METHOD, AND APPLIANCE FOR FOAM EXTINGUISHING
    Publication number: 20230149753
    Abstract: A foam production method includes mixing liquid nitrogen with a foaming material to produce foam. A gas is produced in situ from liquid nitrogen. As the ratio of the volume of the gas produced by gasification of liquid nitrogen to the volume of the liquid nitrogen is relatively high, when a large gas supply flow is needed to generate a large foam flow, a liquid nitrogen storage device of a small volume can be used instead of bulky air supply devices such as high-pressure gas cylinders, air compressors, air compressor sets and the like, reducing the volume of the air supply device. In addition, the liquid nitrogen used in foaming will release nitrogen gas after the foam blast, such that the nitrogen is also able to inhibit combustion on the surface of burning materials, accelerating the extinguishing of the fire.
    Type: Application
    Filed: January 19, 2023
    Publication date: May 18, 2023
    Applicants: CHINA PETROLEUM & CHEMICAL CORPORATION, CHINA PETROLEUM & CHEMICAL CORPORATION QINGDAO RESEARCH INSTITUTE OF SAFETY ENGINEERING
    Inventors: Shanjun MU, Chunming JIANG, Weihua ZHANG, Quanzhen LIU, Xuqing LANG, Xiaodong MU, Lin WANG, Jingfeng WU, Longmei TAN, Zuzheng SHANG, Rifeng ZHOU, Jianxiang LI, Hui YU
  • Foam producing method, fire extinguishing method, and appliance for foam extinguishing
    Patent number: 11559711
    Abstract: A foam production method includes mixing liquid nitrogen with a foaming material to produce foam. A gas is produced in situ from liquid nitrogen. As the ratio of the volume of the gas produced by gasification of liquid nitrogen to the volume of the liquid nitrogen is relatively high, when a large gas supply flow is needed to generate a large foam flow, a liquid nitrogen storage device of a small volume can be used instead of bulky air supply devices such as high-pressure gas cylinders, air compressors, air compressor sets and the like, reducing the volume of the air supply device. In addition, the liquid nitrogen used in foaming will release nitrogen gas after the foam blast, such that the nitrogen is also able to inhibit combustion on the surface of burning materials, accelerating the extinguishing of the fire.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: January 24, 2023
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, CHINA PETROLEUM & CHEMICAL CORPORATION QINGDAO RESEARCH INSTITUTE OF SAFETY ENGINEERING
    Inventors: Shanjun Mu, Chunming Jiang, Weihua Zhang, Quanzhen Liu, Xuqing Lang, Xiaodong Mu, Lin Wang, Jingfeng Wu, Longmei Tan, Zuzheng Shang, Rifeng Zhou, Jianxiang Li, Hui Yu
  • FOAM PRODUCING METHOD, FIRE EXTINGUISHING METHOD, AND APPLIANCE FOR FOAM EXTINGUISHING
    Publication number: 20210283442
    Abstract: A foam production method includes mixing liquid nitrogen with a foaming material to produce foam. A gas is produced in situ from liquid nitrogen. As the ratio of the volume of the gas produced by gasification of liquid nitrogen to the volume of the liquid nitrogen is relatively high, when a large gas supply flow is needed to generate a large foam flow, a liquid nitrogen storage device of a small volume can be used instead of bulky air supply devices such as high-pressure gas cylinders, air compressors, air compressor sets and the like, reducing the volume of the air supply device. In addition, the liquid nitrogen used in foaming will release nitrogen gas after the foam blast, such that the nitrogen is also able to inhibit combustion on the surface of burning materials, accelerating the extinguishing of the fire.
    Type: Application
    Filed: February 26, 2018
    Publication date: September 16, 2021
    Applicants: CHINA PETROLEUM & CHEMICAL CORPORATION, CHINA PETROLEUM & CHEMICAL CORPORATION QINGDAO RESEARCH INSTITUTE OF SAFETY ENGINEERING
    Inventors: Shanjun MU, Chunming JIANG, Weihua ZHANG, Quanzhen LIU, Xuqing LANG, Xiaodong MU, Lin WANG, Jingfeng WU, Longmei TAN, Zuzheng SHANG, Rifeng ZHOU, Jianxiang LI, Hui YU