Patents by Inventor Dinghua Wang

Dinghua Wang 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).

  • Method for determining reflective surface of steering gear and focusing steering gear of external level gauge
    Patent number: 11852520
    Abstract: The present disclosure discloses a method for determining a reflective surface of a steering gear and a focusing steering gear of an external level gauge. The method includes: obtaining a focal length and a specific reflection angle (101); determining an 0th step reflective surface (102) of the reflective surface of the steering gear based on the focal length and the specific reflection angle; determining an adjacent step reflective surface (103) by a geometric method based on the 0th step reflective surface; and if a number of steps of the reflective surface of the steering gear reaches a preset value, determining the reflective surface (104) of the steering gear based on the 0th step reflective surface and the adjacent step reflective surface. According to the present disclosure, a liquid level can be measured at an outer side of a side wall of a vertical liquid storage tank.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: December 26, 2023
    Assignee: XI'AN DINGHUA ELECTRONICS CO., LTD.
    Inventors: Dinghua Wang, Rui Wang, Pu Wang
  • METHOD FOR DETERMINING REFLECTIVE SURFACE OF STEERING GEAR AND FOCUSING STEERING GEAR OF EXTERNAL LEVEL GAUGE
    Publication number: 20230392970
    Abstract: The present disclosure discloses a method for determining a reflective surface of a steering gear and a focusing steering gear of an external level gauge. The method includes: obtaining a focal length and a specific reflection angle (101); determining an 0th step reflective surface (102) of the reflective surface of the steering gear based on the focal length and the specific reflection angle; determining an adjacent step reflective surface (103) by a geometric method based on the 0th step reflective surface; and if a number of steps of the reflective surface of the steering gear reaches a preset value, determining the reflective surface (104) of the steering gear based on the 0th step reflective surface and the adjacent step reflective surface. According to the present disclosure, a liquid level can be measured at an outer side of a side wall of a vertical liquid storage tank.
    Type: Application
    Filed: May 7, 2021
    Publication date: December 7, 2023
    Applicant: XI'AN DINGHUA ELECTRONICS CO., LTD.
    Inventors: Dinghua Wang, Rui Wang, Pu Wang
  • Freezer with drawer below
    Patent number: D452255
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: December 18, 2001
    Assignees: Haier Group Corporation, Quingdao Haier Icebox Co., Ltd.
    Inventors: Yongsen Chai, Jian Ma, Biao Li, Dinghua Wang