Patents by Inventor Sung-Bae Song

Sung-Bae Song 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).

  • Axial-flow fan
    Patent number: 6416288
    Abstract: Disclosed is an axial-flow fan including a hub coupled to a rotating shaft and integral with the rotating shaft, and blades arranged around the outer peripheral surface of the hub and integral with the hub, the axial-flow fan having design parameters given under the condition using an outer fan diameter of 110 mm±10 mm and a number of the blades corresponding to five or more. A sweep angle, which is included in the design parameters, is calculated using particular calculation equations, to reduce noises resulting from a “blade passing frequency” and a “blade vortex interaction” generated during an air sucking operation.
    Type: Grant
    Filed: January 11, 2001
    Date of Patent: July 9, 2002
    Assignee: LG Electronics Inc.
    Inventor: Sung Bae Song
  • Axial-flow fan
    Publication number: 20020034443
    Abstract: Disclosed is an axial-flow fan including a hub coupled to a rotating shaft and integral with the rotating shaft, and blades arranged around the outer peripheral surface of the hub and integral with the hub, the axial-flow fan having design parameters given under the condition using an outer fan diameter of 110 mm±10 mm and a number of the blades corresponding to five or more. A sweep angle, which is included in the design parameters, is calculated using particular calculation equations, to reduce noises resulting from a “blade passing frequency” and a “blade vortex interaction” generated during an air sucking operation.
    Type: Application
    Filed: January 11, 2001
    Publication date: March 21, 2002
    Inventor: Sung Bae Song