Patents by Inventor Hai-Zhong Liu

Hai-Zhong Liu 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: 8237077
    Abstract: An electrode tube holding apparatus is mounted to an electric discharge machine (EDM). The holding apparatus is slidable upward and downward along with the spindle of the EDM and maintained within the midsection of an electrode tube for reducing the deformation of the electrode tube during its movement.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: August 7, 2012
    Assignee: Max See Industry Co., Ltd.
    Inventor: Hai-Zhong Liu
  • Publication number: 20110031221
    Abstract: An electrode tube holding apparatus is mounted to an electric discharge machine (EDM). The holding apparatus is slidable upward and downward along with the spindle of the EDM and maintained within the midsection of an electrode tube for reducing the deformation of the electrode tube during its movement.
    Type: Application
    Filed: August 4, 2009
    Publication date: February 10, 2011
    Applicant: MAX SEE INDUSTRY CO., LTD.
    Inventor: Hai-Zhong Liu