Patents by Inventor Chang-Woo Seon

Chang-Woo Seon 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).

  • Patent number: 6532622
    Abstract: A brush head of a vacuum cleaner can pivot in a horizontal direction as well as a vertical direction with respect to a suction pipe, so as to easily clean an area narrower than the width of the brush head. The brush head of a vacuum cleaner includes a body which is detachably coupled to a suction pipe and is formed with a suction hole for sucking dust. A hollow cylindrical pivoting part is integrally formed with the body at a rear central portion of the body and is formed with a roller receiving cut along a periphery of the lower surface of the pivoting part. A cylindrical pivot supporting member is inserted into the pivoting part to support a horizontal pivoting movement of the pivoting part. The pivot supporting member is formed with a communicating space at its peripheral wall which communicates with the suction hole and the suction pipe, and is provided with a roller at its rear bottom surface.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: March 18, 2003
    Assignee: Daewoo Electronics Co., Ltd.
    Inventors: Chang-Woo Seon, Sang-Bo Kang
  • Publication number: 20010042285
    Abstract: A brush head of a vacuum cleaner can pivot in a horizontal direction as well as a vertical direction with respect to a suction pipe, so as to easily clean an area narrower than the width of the brush head. The brush head of a vacuum cleaner includes a body which is detachably coupled to a suction pipe and is formed with a suction hole for sucking dust. A hollow cylindrical pivoting part is integrally formed with the body at a rear central portion of the body and is formed with a roller receiving cut along a periphery of the lower surface of the pivoting part. A cylindrical pivot supporting member is inserted into the pivoting part to support a horizontal pivoting movement of the pivoting part. The pivot supporting member is formed with a communicating space at its peripheral wall which communicates with the suction hole and the suction pipe, and is provided with a roller at its rear bottom surface.
    Type: Application
    Filed: January 31, 2001
    Publication date: November 22, 2001
    Inventors: Chang-Woo Seon, Sang-Bo Kang