Patents by Inventor XIAN-GANG FAN

XIAN-GANG FAN 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).

  • Testing device for planeness
    Patent number: 8650768
    Abstract: A testing device for testing whether planeness of top and bottom surfaces of an object is within an allowable range includes a rack, a motion mechanism, a transmission mechanism, a control mechanism, a testing mechanism, and a display. The motion mechanism is slidably connected to the rack and supporting the object. The transmission mechanism is fastened to the rack and the motion mechanism. The testing mechanism includes two separated rows of sensors. The object extends through the testing mechanism, between the rows of sensors. The sensors above the object measure distances between the sensors and corresponding dots of a top surface of the object. The sensors below the object measure distances between the sensors and corresponding dots of a bottom surface of the object. The sensors send signals about the distances to the control mechanism.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: February 18, 2014
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd, Hon Hai Precision Industry Co., Ltd.
    Inventor: Xian-Gang Fan
  • TESTING DEVICE FOR PLANENESS
    Publication number: 20130104412
    Abstract: A testing device for testing whether planeness of top and bottom surfaces of an object is within an allowable range includes a rack, a motion mechanism, a transmission mechanism, a control mechanism, a testing mechanism, and a display. The motion mechanism is slidably connected to the rack and supporting the object. The transmission mechanism is fastened to the rack and the motion mechanism. The testing mechanism includes two separated rows of sensors. The object extends through the testing mechanism, between the rows of sensors. The sensors above the object measure distances between the sensors and corresponding dots of a top surface of the object. The sensors below the object measure distances between the sensors and corresponding dots of a bottom surface of the object. The sensors send signals about the distances to the control mechanism.
    Type: Application
    Filed: March 13, 2012
    Publication date: May 2, 2013
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HON FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
    Inventor: XIAN-GANG FAN