Patents by Inventor Tianhua Xia

Tianhua Xia 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).

  • Internal calibration mechanism for a weigh module
    Patent number: 11933663
    Abstract: An internal calibration mechanism of a weigh module has a driving structure, a calibration weight and a weight support frame. The weight support frame has an opening or a groove for loading the calibration weight. The weight support frame is connected to a load receiving portion at both sides thereof and is connected to a portion of a fixing portion that extends towards the load-receiving portion. In one case, the weight support frame, the load-receiving portion and the fixing portion are integrally formed. In another case, a force transmission connecting portion and a fulcrum connecting portion of the weight support frame are fixedly connected, respectively, to the load-receiving portion and to the extending portion of the fixing portion. In another case, flexure hinges connect the weight support frame to the load-receiving portion at both sides thereof and connect the weight support frame to the extending portion.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: March 19, 2024
    Assignee: Mettler Toledo Instrument (Shanghai) Company Limited
    Inventors: Baohui Liu, Chao Wu, Weixiang Sun, Naifeng Bian, Tianhua Xia, Feng Min
  • INTERNAL CALIBRATION MECHANISM FOR A WEIGH MODULE
    Publication number: 20210199491
    Abstract: An internal calibration mechanism of a weigh module has a driving structure, a calibration weight and a weight support frame. The weight support frame has an opening or a groove for loading the calibration weight. The weight support frame is connected to a load receiving portion at both sides thereof and is connected to a portion of a fixing portion that extends towards the load-receiving portion. In one case, the weight support frame, the load-receiving portion and the fixing portion are integrally formed. In another case, a force transmission connecting portion and a fulcrum connecting portion of the weight support frame are fixedly connected, respectively, to the load-receiving portion and to the extending portion of the fixing portion. In another case, flexure hinges connect the weight support frame to the load-receiving portion at both sides thereof and connect the weight support frame to the extending portion.
    Type: Application
    Filed: December 15, 2020
    Publication date: July 1, 2021
    Inventors: Baohui Liu, Chao Wu, Weixiang Sun, Naifeng Bian, Tianhua Xia, Feng Min