Patents Assigned to Dusan Metals, Inc.
  • Door lock
    Patent number: 5651280
    Abstract: An improved door lock is disclosed whereby the application of excessive force on the door handle will not cause a malfunction of the door lock and will not cause damage to the internal working features of the door lock. The door lock includes an outer rose spindle assembly, having an inner and an outer spindle, wherein the two spindle portions are releasably connected by a plurality of complementary pins and dints. Upon the application of excessive force on the door handle, the pins are released from the dints such that the force is not further transmitted to sequential features of the lock body.
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: July 29, 1997
    Assignee: Dusan Metals, Inc.
    Inventor: Jung Woo Park
  • Door lock
    Patent number: 5617749
    Abstract: An improved door lock is disclosed whereby the application of excessive force on the door handle will not cause a malfunction of the door lock and will not cause damage to the internal working features of the door lock. The door lock includes an outer rose spindle assembly, having an inner and an outer spindle, wherein the two spindle portions are releasably connected by a plurality of complementary pins and dints. Upon the application of excessive force on the door handle, the pins are released from the dints such that the force is not further transmitted to sequential features of the lock body.
    Type: Grant
    Filed: May 30, 1996
    Date of Patent: April 8, 1997
    Assignee: Dusan Metals, Inc.
    Inventor: Jung W. Park