Patents by Inventor Jun Sei Lee

Jun Sei Lee 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).

  • Blower
    Patent number: 6767184
    Abstract: A blower having a turbo fan is installed in a scroll housing with a cutoff. The cutoff has an inclination angle of approximately 50 to 80°, so that it is possible to draw in an increased amount of air while reducing the flow resistance of air. Accordingly, blowing efficiency is improved while simultaneously reducing the generation of noise and vibration.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: July 27, 2004
    Assignee: LG Electronics Inc.
    Inventors: Sung Chun Kim, Young Min Park, Jong Han Park, Jun Sei Lee, Sung Oh Choi
  • Turbo fan
    Patent number: 6695584
    Abstract: A turbo fan comprises: a hub coupled to a rotational shaft of a driving device; a plurality of blades installed on an outer circumference of the hub in a radial direction; and a shroud connected to the plurality of blades on opposite side of the hub centering around the blades; wherein a leading edge of the blade comprises: a connection part which is connected to the shroud; an extension part which is extended as a straight line parallelly with the rotational shaft from the hub; and a curved surface part which is formed as a convex curved surface between the extension part and the connection part.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: February 24, 2004
    Assignee: LG Electronics Inc.
    Inventors: Seong Chun Kim, Young Min Park, Jong Han Park, Jun Sei Lee, Sung Oh Choi
  • Blower
    Publication number: 20030049122
    Abstract: Disclosed is a blower in which a turbo fan is installed in a scroll housing having a cutoff with an inclination angle of about 50 to 80°, so that it is possible to suck an increased amount of air while reducing the flow resistance of air, thereby achieving an improvement in blowing efficiency while reducing generation of noise and vibrations.
    Type: Application
    Filed: March 14, 2002
    Publication date: March 13, 2003
    Inventors: Sung Chun Kim, Young Min Park, Jong Han Park, Jun Sei Lee, Sung Oh Choi
  • Turbo fan
    Publication number: 20030044280
    Abstract: A turbo fan comprises: a hub coupled to a rotational shaft of a driving device; a plurality of blades installed on an outer circumference of the hub in a radial direction; and a shroud connected to the plurality of blades on opposite side of the hub centering around the blades; wherein a leading edge of the blade comprises: a connection part which is connected to the shroud; an extension part which is extended as a straight line parallelly with the rotational shaft from the hub; and a curved surface part which is formed as a convex curved surface between the extension part and the connection part.
    Type: Application
    Filed: January 11, 2002
    Publication date: March 6, 2003
    Inventors: Seong Chun Kim, Young Min Park, Jong Han Park, Jun Sei Lee, Sung Oh Choi