Patents by Inventor Guolu Zheng

Guolu Zheng 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: 11679426
    Abstract: The present invention discloses a rolling-bulging forming hydraulic machine for tubular products, which includes a frame. The frame is provided with an upper rolling mechanism, a lower rolling mechanism, a fixed liquid bulging hydraulic cylinder and a movable liquid bulging hydraulic cylinder. The upper rolling mechanism and the lower rolling mechanism are arranged oppositely, and the upper rolling mechanism and the lower rolling mechanism are used to roll surfaces of a to-be-machined tubular product. The fixed liquid bulging hydraulic cylinder and the movable liquid bulging hydraulic cylinder are arranged oppositely, and the fixed liquid bulging hydraulic cylinder and the movable liquid bulging hydraulic cylinder are used to perform hydraulic bulging on the to-be-machined tubular product.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: June 20, 2023
    Assignee: YANSHAN UNIVERSITY
    Inventors: Junting Luo, Guolu Zheng, Chenguang Cui, Lili Zhang, Chunxiang Zhang
  • Publication number: 20210299720
    Abstract: The present invention discloses a rolling-bulging forming hydraulic machine for tubular products, which includes a frame. The frame is provided with an upper rolling mechanism, a lower rolling mechanism, a fixed liquid bulging hydraulic cylinder and a movable liquid bulging hydraulic cylinder. The upper rolling mechanism and the lower rolling mechanism are arranged oppositely, and the upper rolling mechanism and the lower rolling mechanism are used to roll surfaces of a to-be-machined tubular product. The fixed liquid bulging hydraulic cylinder and the movable liquid bulging hydraulic cylinder are arranged oppositely, and the fixed liquid bulging hydraulic cylinder and the movable liquid bulging hydraulic cylinder are used to perform hydraulic bulging on the to-be-machined tubular product.
    Type: Application
    Filed: March 15, 2021
    Publication date: September 30, 2021
    Inventors: Junting LUO, Guolu ZHENG, Chenguang CUI, Lili ZHANG, Chunxiang ZHANG
  • Patent number: 5821546
    Abstract: A method of and apparatus for detecting the presence of fecal or ingesta matter contaminants on a poultry or meat item. The poultry or meat is exposed to excitation light of a selected bandwidth(s) and certain bandwidth(s) is(are) measured and compared to a threshold, above which indicates contaminants. Suitable excitation bandwidth and measuring bandwidth are selected such that the ratio of or difference between the resulting sample fluoresence and contamination fluoresence are greater then a certain ratio or difference. If contaminants are present, a controller can generate a signal and/or send the contaminated items to a wash station.
    Type: Grant
    Filed: November 13, 1996
    Date of Patent: October 13, 1998
    Assignee: Board of Trustees of the University of Arkansas
    Inventors: Min Xiao, Da Kui Zhuang, Guolu Zheng, Michael F. Slavik