Patents by Inventor Zongqing Lin

Zongqing Lin 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 and apparatus for inspecting adhesive quality
    Patent number: 8878093
    Abstract: A method and apparatus inspect a quality of an adhesive material used for joining a pair of work surfaces during a weld-bonding process. A pair of work pieces are at least partially bonded by a layer of the adhesive material, and the dynamic displacement of one or both electrodes is measured through a duration of the resistance welding process to determine relative moisture content of the adhesive. A control action is executed when the dynamic displacement exceeds a stored threshold value. The apparatus includes a welding device having a pair of electrodes for providing a clamping force and an electrical current necessary for forming the welded joint, a sensor for measuring a dynamic displacement of at least one of the pair of electrodes and/or another portion of the welding device during formation of the welded joint. A controller has an algorithm for determining a relative moisture using the dynamic displacement.
    Type: Grant
    Filed: July 28, 2008
    Date of Patent: November 4, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Pei-Chung Wang, Zongqing Lin, Xinmin Lai, Yansong Zhang, Guanlong Chen
  • Online weld inspection and repair method for resistance welding and weld-bonding
    Patent number: 8803024
    Abstract: A method to diagnose weld integrity in a welding process includes monitoring a weld indentation characteristic, comparing the monitored weld indentation characteristic to a threshold weld indentation characteristic, and identifying a discrepant weld when the weld indentation characteristic comparison shows the monitored weld indentation characteristic violates the threshold weld indentation characteristic.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: August 12, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Pei-Chung Wang, Zongqing Lin, Xinmin Lai, Yansong Zhang, Guanlong Chen, Sheila A. Marin
  • METHOD AND APPARATUS FOR INSPECTING ADHESIVE QUALITY
    Publication number: 20100019785
    Abstract: A method and apparatus inspect a quality of an adhesive material used for joining a pair of work surfaces during a weld-bonding process. A pair of work pieces are at least partially bonded by a layer of the adhesive material, and the dynamic displacement of one or both electrodes is measured through a duration of the resistance welding process to determine relative moisture content of the adhesive. A control action is executed when the dynamic displacement exceeds a stored threshold value. The apparatus includes a welding device having a pair of electrodes for providing a clamping force and an electrical current necessary for forming the welded joint, a sensor for measuring a dynamic displacement of at least one of the pair of electrodes and/or another portion of the welding device during formation of the welded joint. A controller has an algorithm for determining a relative moisture using the dynamic displacement.
    Type: Application
    Filed: July 28, 2008
    Publication date: January 28, 2010
    Applicant: GM GLOBAL TECHNOLOGT OPERATIONS, INC.
    Inventors: Pei-Chung Wang, Zongqing Lin, Xinmin Lai, Yansong Zhang, Guanlong Chen
  • ONLINE WELD INSPECTION AND REPAIR METHOD FOR RESISTANCE WELDING AND WELD-BONDING
    Publication number: 20090152253
    Abstract: A method to diagnose weld integrity in a welding process includes monitoring a weld indentation characteristic, comparing the monitored weld indentation characteristic to a threshold weld indentation characteristic, and identifying a discrepant weld when the weld indentation characteristic comparison shows the monitored weld indentation characteristic violates the threshold weld indentation characteristic.
    Type: Application
    Filed: December 9, 2008
    Publication date: June 18, 2009
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Pei-Chung Wang, Zongqing Lin, Xinmin Lai, Yansong Zhang, Guanlong Chen, Samuel P. Marin, Sheila A. Marin