Patents by Inventor Seung-Rak Jang

Seung-Rak Jang 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).

  • Publication number: 20130335900
    Abstract: The invention relates to a multi-functional charger for wireless cleaner. The invention includes a case with a docking station at one side and a charging dock at the other side; a first charging terminal provided in the docking station of the case and for being connected to a connection terminal of the robot cleaner; a second charging terminal provided in the charging dock of the case and for being connected to a connection terminal of the handheld cleaner; and a charging module provided in the case, supplying the first charging terminal and the second charging terminal, respectively with electrical power, and charging the robot cleaner and the handheld cleaner, respectively. The invention can charge the robot cleaner and the handheld cleaner at one location, and get a charging power source through a single wire and charge the robot cleaner and the handheld cleaner simultaneously.
    Type: Application
    Filed: December 7, 2011
    Publication date: December 19, 2013
    Inventor: Seung Rak Jang
  • Patent number: 7650666
    Abstract: A robot cleaner is mainly comprised of a base case whose upper portion is equipped with a driving part for running and a suction part for removing dust or dirt; and a top case covering on top of said base case, wherein said base case is formed at lower portion thereof with an inside vertical wall protruding so as to surround dust suction aperture, and with an outside vertical wall external to said inside vertical wall so that a hollow part may be formed in-between surrounding said inside vertical wall; and an auxiliary suction wall is installed between said inside vertical wall and outside vertical wall in such a manner that said auxiliary suction wall is movable by force of spring external to said inside vertical wall between a No. 1 position locating toward floor (F) and a No. 2 position locating withdrawn from said No. 1 position opposite to floor (F), said auxiliary suction wall being positioned toward floor (F) when no external forces are applied.
    Type: Grant
    Filed: September 4, 2006
    Date of Patent: January 26, 2010
    Assignee: Kyungmin Mechatronics Co., Ltd.
    Inventor: Seung-Rak Jang
  • Publication number: 20080271278
    Abstract: A robot cleaner is mainly comprised of a base case whose upper portion is equipped with a driving part for running and a suction part for removing dust or dirt; and a top case covering on top of said base case, wherein said base case is formed at lower portion thereof with an inside vertical wall protruding so as to surround dust suction aperture, and with an outside vertical wall external to said inside vertical wall so that a hollow part may be formed in-between surrounding said inside vertical wall; and an auxiliary suction wall is installed between said inside vertical wall and outside vertical wall in such a manner that said auxiliary suction wall is movable by force of spring external to said inside vertical wall between a No. 1 position locating toward floor (F) and a No. 2 position locating withdrawn from said No. 1 position opposite to floor (F), said auxiliary suction wall being positioned toward floor (F) when no external forces are applied.
    Type: Application
    Filed: September 4, 2006
    Publication date: November 6, 2008
    Inventor: Seung-Rak Jang