Patents by Inventor Haichen ZHANG

Haichen ZHANG 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 measuring and evaluating gear precision
    Publication number: 20180128608
    Abstract: The invention discloses a method for measuring and evaluating gear precision. The method includes steps of scanning a tested gear and building up an actual model of the tested gear via scanned data; overlapping the actual model of the tested gear with a standard 3D model; selecting a section of the overlapped model to compare; judging if the point on the actual model section exceeds a tolerance zone selected on the actual model.
    Type: Application
    Filed: May 19, 2016
    Publication date: May 10, 2018
    Inventor: Haichen ZHANG