Patents by Inventor Meiling XU

Meiling 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).

  • Patent number: 12146490
    Abstract: Disclosed are a compression mechanism and a scroll compressor. The compression mechanism comprises an orbiting scroll and a non-orbiting scroll comprising a non-orbiting scroll end plate and forms a series of fluid chambers comprising an intermediate compression chamber. An exhaust communication space is provided on the second side of the non-orbiting scroll end plate, and the non-orbiting scroll end plate is provided with a pressure relief port which makes at least one intermediate compression chamber be in selective fluid communication with the exhaust communication space. An end plate surface on the first side of the non-orbiting scroll end plate is provided with an exhaust groove which is in communication with the pressure relief port, the pressure relief port can be in fluid communication with the at least one intermediate compression chamber through the exhaust groove.
    Type: Grant
    Filed: September 27, 2020
    Date of Patent: November 19, 2024
    Assignee: Copeland Climate Technologies (Suzhou) Co. Ltd.
    Inventors: Ji Liang, Ping Zhao, Meiling Xu, Yuan Qian
  • Publication number: 20240093030
    Abstract: The present invention provides a high-strength and high-heat-resistant bio-based polyamide composition, which consists of the following parts of materials by mass: 43.50-89.95% of bio-based polyamide resin slices; 10-50% of reinforcements; 0.01-2% of rare earth compounds; 0.01-1% of copper salt antioxidant combinations; 0.01-1% of free-radical scavengers; 0.01-0.5% of heat-conducting masterbatches; 0.01-1% of stabilizers; and 0-1% of dispersants. The advantage of the present invention is presented in that: the bio-based polyamide resin slice is prepared through a stepwise polycondensation process of pentanediamine and adipic acid, or through a stepwise polycondensation process of pentanediamine, adipic acid and terephthalic acid and the pentanediamine is prepared through fermentation of starch, so the prepared polyamide resin pertains to an environmentally-friendly engineering plastic.
    Type: Application
    Filed: December 28, 2021
    Publication date: March 21, 2024
    Applicants: SHANGHAI PRET COMPOSITES CO., LTD., ZHEJIANG PRET ADVANCED MATERIALS CO., LTD., CHONGQING PRET NEW MATERIALS CO., LTD., SHANGHAI PRET CHEMICAL NEW MATERIALS CO., LTD
    Inventors: Haisheng ZHANG, Jianrui CHEN, Yi WANG, Ruixiang YAN, Ying CAI, Bing ZHOU, Meiling XU, Qianhui ZHANG, Qing CAI, Guoyi DU, Tinglong YAN, Wen ZHOU
  • Publication number: 20230160386
    Abstract: Disclosed are a compression mechanism and a scroll compressor. The compression mechanism comprises an orbiting scroll and a non-orbiting scroll comprising a non-orbiting scroll end plate and forms a series of fluid chambers comprising an intermediate compression chamber. An exhaust communication space is provided on the second side of the non-orbiting scroll end plate, and the non-orbiting scroll end plate is provided with a pressure relief port which makes at least one intermediate compression chamber be in selective fluid communication with the exhaust communication space. An end plate surface on the first side of the non-orbiting scroll end plate is provided with an exhaust groove which is in communication with the pressure relief port, the pressure relief port can be in fluid communication with the at least one intermediate compression chamber through the exhaust groove.
    Type: Application
    Filed: September 27, 2020
    Publication date: May 25, 2023
    Applicant: Emerson Climate Technologies (Suzhou) Co., Ltd.
    Inventors: Ji LIANG, Ping ZHAO, Meiling XU, Yuan QIAN