Patents by Inventor Tsung-Hsiao CHEN

Tsung-Hsiao CHEN 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).

  • Valve with an anti-loosening stem
    Patent number: 9581268
    Abstract: A valve has a valve body, a valve member, a bonnet, an anti-loosening stem and multiple fillers. The valve member is mounted inside the valve body, and has a first mounting part and a groove that is defined annually in the first mounting part. The anti-loosening stem is mounted through the valve body, and has multiple embedding elements and a second mounting part that is mounted in the first mounting part. The embedding elements are mounted radially in the anti-loosening stem and abut the groove. Thus, the anti-loosening stem is mounted firmly in the valve member. The bonnet abuts the fillers and is mounted in the valve body. Therefore, the anti-loosening stem is prevented from detaching or jetting out of the valve member and damaging the user when removing the bonnet to replace the fillers.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: February 28, 2017
    Assignee: VALUE VALVES CO., LTD.
    Inventor: Tsung-Hsiao Chen
  • VALVE WITH AN ANTI-LOOSENING STEM
    Publication number: 20160348801
    Abstract: A valve has a valve body, a valve member, a bonnet, an anti-loosening stem and multiple fillers. The valve member is mounted inside the valve body, and has a first mounting part and a groove that is defined annually in the first mounting part. The anti-loosening stem is mounted through the valve body, and has multiple embedding elements and a second mounting part that is mounted in the first mounting part. The embedding elements are mounted radially in the anti-loosening stem and abut the groove. Thus, the anti-loosening stem is mounted firmly in the valve member. The bonnet abuts the fillers and is mounted in the valve body. Therefore, the anti-loosening stem is prevented from detaching or jetting out of the valve member and damaging the user when removing the bonnet to replace the fillers.
    Type: Application
    Filed: December 21, 2015
    Publication date: December 1, 2016
    Inventor: Tsung-Hsiao CHEN