Patents by Inventor Chung-We YEH

Chung-We YEH 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).

  • Ventilation fan
    Patent number: 10690137
    Abstract: A ventilation fan includes a fan and a housing. The fan includes a base, a scroll casing, and an impeller. The base is used for supporting a driving device. The scroll casing has an air inlet, an air outlet, a top portion, a bottom portion corresponding to the top portion, and a slope surface connecting the top portion and an edge of the air outlet. The top portion and the bottom portion together define a channel height, and the ratio of the channel height to the height of the air outlet ranges from 1.1 to 2. The channel height ranges from 110 mm to 200 mm. The impeller is disposed in the scroll casing, and the driving device drives the impeller to rotate. The housing is used for accommodating the fan, and has an opening corresponding to the air outlet of the scroll casing.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: June 23, 2020
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Yuan-Chuan Liu, Chih-Hua Lin, Chung-We Yeh
  • VENTILATION FAN
    Publication number: 20190376522
    Abstract: A ventilation fan includes a fan and a housing. The fan includes a base, a scroll casing, and an impeller. The base is used for supporting a driving device. The scroll casing has an air inlet, an air outlet, a top portion, a bottom portion corresponding to the top portion, and a slope surface connecting the top portion and an edge of the air outlet. The top portion and the bottom portion together define a channel height, and the ratio of the channel height to the height of the air outlet ranges from 1.1 to 2. The channel height ranges from 110 mm to 200 mm. The impeller is disposed in the scroll casing, and the driving device drives the impeller to rotate. The housing is used for accommodating the fan, and has an opening corresponding to the air outlet of the scroll casing.
    Type: Application
    Filed: June 6, 2018
    Publication date: December 12, 2019
    Inventors: Yuan-Chuan LIU, Chih-Hua LIN, Chung-We YEH