Patents by Inventor Wen-Jin Cherng

Wen-Jin Cherng 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 unit and peristaltic pump including the same
    Patent number: 9903359
    Abstract: A vale unit includes a valve frame and two valve plates. The valve frame defines a valve opening. The valve plates are formed with protrusions. Each of the valve plates has a connecting end that is formed with a notch. The connecting ends are connected to each other. The protrusions protrude from peripheries of the notches. Each of the protrusions has a contact end. The contact ends cooperatively define a gap therebetween. The valve plates are co-rotatable about an axis between a closed position, in which the valve plates substantially close the valve opening, and an opening position, in which the valve plates open the valve opening. The gap has a width varying in response to co-rotation of the valve plates between the opening position and the closed position.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: February 27, 2018
    Assignee: National Taiwan Ocean University
    Inventors: Chau-Chang Chou, Te-Chun Wu, Wen-Jin Cherng
  • VALVE UNIT AND PERISTALTIC PUMP INCLUDING THE SAME
    Publication number: 20160069461
    Abstract: A vale unit includes a valve frame and two valve plates. The valve frame defines a valve opening. The valve plates are formed with protrusions. Each of the valve plates has a connecting end that is formed with a notch. The connecting ends are connected to each other. The protrusions protrude from peripheries of the notches. Each of the protrusions has a contact end. The contact ends cooperatively define a gap therebetween. The valve plates are co-rotatable about an axis between a closed position, in which the valve plates substantially close the valve opening, and an opening position, in which the valve plates open the valve opening. The gap has a width varying in response to co-rotation of the valve plates between the opening position and the closed position.
    Type: Application
    Filed: March 11, 2015
    Publication date: March 10, 2016
    Inventors: Chau-Chang Chou, Te-Chun Wu, Wen-Jin Cherng