Patents by Inventor Zhonghua Gu

Zhonghua Gu 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).

  • Publication number: 20240075502
    Abstract: The present invention discloses a mattress cleaning device including a conveying assembly, a first brush roller set, a second brush roller set, and a third brush roller set. Multiple groups of the conveying assemblies are arranged horizontally at intervals to form a conveying channel, and multiple alternate spaces are formed between the multiple groups of the conveying assemblies. The first brush roller set includes at least two movable brush roller rotatably arranged in multiple alternate spaces, and the moving brush rollers can move up and down relative to the conveying assembly in a direction perpendicular to the conveying channel so as to clean the front face and the rear face, and the lower face of a mattress. The second brush roller set is rotatably arranged above the conveying assembly to clean the upper end face of the mattress.
    Type: Application
    Filed: October 31, 2022
    Publication date: March 7, 2024
    Inventors: Hong Chen, Zhonghua Gu, Shengang Cai, Lunan Wang, Yexin Li, Wei Shen
  • Patent number: 8959947
    Abstract: The present invention disclosures an oil balance device and a method for performing an oil balance operation between a plurality of compressor units, which are suitable for air conditioner units comprising at least two parallel connected compressor units. Each compressor unit comprises at least one parallel connected compressors. The oil balance device comprises an oil reservoir, a first pipe, a second pipe, a third pipe and a fourth pipe. The four pipes communicate with the oil reservoir respectively. Each pipe is provided with at least one valve to control the opening and the closing of the corresponding pipe.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: February 24, 2015
    Assignees: Johnson Controls Technology Company, Johnson Controls Building Efficiency Technology (WUXI) Company
    Inventors: Stone Zhai, Xiucheng Ji, Zhonghua Gu
  • Publication number: 20110162746
    Abstract: The present invention disclosures an oil balance device and a method for performing an oil balance operation between a plurality of compressor units, which are suitable for air conditioner units comprising at least two parallel connected compressor units. Each compressor unit comprises at least one parallel connected compressors. The oil balance device comprises an oil reservoir, a first pipe, a second pipe, a third pipe and a fourth pipe. The four pipes communicate with the oil reservoir respectively. Each pipe is provided with at least one valve to control the opening and the closing of the corresponding pipe.
    Type: Application
    Filed: March 17, 2011
    Publication date: July 7, 2011
    Applicants: JOHNSON CONTROLS TECHNOLOGY COMPANY, JOHNSON CONTROLS BUILDING EFFICIENCY TECHNOLOGY (WUXI) COMPANY, LTD.
    Inventors: Stone ZHAI, Xiucheng Ji, Zhonghua Gu