Patent ID: 6567996
Filing Date: 2003-05-27
Classification: E03C,Y10S

Abstract:
A drain lock system adapted for securing a drain screen in position comprising:a drain lock including a thrust bolt adapted for positioning through the drain screen; a cross member including an elongated body and two opposingly threaded rods, the body defining a longitudinal hole therethrough and a perpendicular transverse hole therethrough, the longitudinal hole having left hand threads associated with a first end of the body thereof and right hand threads with a second end of the body thereof, the perpendicular transverse hole defined in the body being configured for receiving the thrust bolt, a first rod having a left handed thread configured for being received by the first end of the body and a second rod having a right handed thread configured for being received by the second end of the body, the rods having ends having a chisel shaped edge; a nonstandard head positioned on the thrust bolt so that it is removable with a special tool and when said head is firmly holding said drain screen in place an entry end, said drain screen is held against unauthorized removal; and an installation tool including a block and two arms, the block including two holes for positioning of the arms, the arms including tips configured for engaging with holes defined in the first rod and the second rod, the tool being configured to fix the relative position of the rods during the installation of the cross member, the arms being configured to rotate in the holes defined in the block to accommodate the movement of the rods during a portion of the installation.