Patents by Inventor Hae-kum Ye

Hae-kum Ye 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: 7396057
    Abstract: A lifting magnet having a housing, a rotary magnet unit, and a stationary magnet unit. The lifting magnet also includes a pinion, a socket moving up and down, a slider rotating the pinion to set the magnetization and demagnetization states at top and bottom dead points, respectively, a locking part provided in one of the socket and the slider, a locking unit provided in the other, including a locker, and moving both the socket and the slider up and down while the locker is locked to the locking part, and a locking unit driver alternately driving the locking unit to make the locker released from and locked to the locking part at first and second moving operations, respectively. With this configuration, the lifting magnet can stably keep on and off states of an attractive magnetic force and conveniently performs lifting and carrying operations.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: July 8, 2008
    Assignee: Daesung Magnet Co., Ltd.
    Inventors: Hae-kum Ye, Chang-ki Han, Young-ho Kim
  • Publication number: 20070035141
    Abstract: Disclosed is a lifting magnet with a housing; a rotary magnet unit; and a stationary magnet unit, which comprises a pinion; a socket moving up and down; a lifting slider rotating the pinion to set the magnetization and demagnetization states at top and bottom dead points, respectively; a locking part provided in one of the socket and the lifting slider; a locking unit provided in the other, comprising a locker, and lifting up and down both the socket and the lifting slider while the locker is locked to the locking part; and a locking unit driver alternately driving the locking unit to make the locker released from and locked to the locking part at first and second lifting operations, respectively. With this configuration, the lifting magnet can stably keep on and off states of an attractive magnetic force and conveniently performs lifting and carrying operations.
    Type: Application
    Filed: October 22, 2004
    Publication date: February 15, 2007
    Inventors: Hae-kum Ye, Chang-ki Han, Young-ho Kim