Patents Assigned to Hyung Jung
  • Magnetic lifting apparatus
    Patent number: 5435613
    Abstract: A magnetic lifting apparatus includes a plurality of magnetic substances, a plurality of pairs of first permanent magnets, a plurality of rotors having a pair of second permanent magnets, respectively, and an on/off switch handle connected to the rotors whereby upon rotating the on/off switch handle, the magnetic apparatus has a magnetic activity or not so as to attach to or release from the object.
    Type: Grant
    Filed: December 1, 1993
    Date of Patent: July 25, 1995
    Assignee: Hyung Jung
    Inventor: Dong W. Jung