Patents by Inventor Chong Y. Ni

Chong Y. Ni 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).

  • Continuous welding device with linear drive
    Patent number: 5603855
    Abstract: A linear drive is provided within this welding device for out a welding operation with an elongated welding electrode. The device advances the electrode towards the welding area as well as for providing the welding current with high efficiency to the welding electrode for the welding operation. The linear drive is provided by a plurality of current conducting elements circulated between two parallel tracks. The elements directly engage with a drive gear mechanism provided within the device, and they also have contact fingers engage with the metal core of the electrode exposed in a plurality of slots formed in the welding flux coating provided on the electrode.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: February 18, 1997
    Inventor: Chong Y. Ni