Abstract: A safety latch including a track channel and a slider plate. The track channel is structured to be secured adjacent a face plate of a latch bolt assembly of a door and to support the slider plate. The track channel presents a first latch bolt opening. The first latch bolt opening is sized and positioned such that when the track channel is secured to the face plate a latch bolt of the latch bolt assembly can be extended and retracted through the first latch bolt opening. The slider plate presents a second latch bolt opening and being is shiftable relative to the track channel between a first position in which the second latch bolt opening is aligned with the first latch bolt opening and a second position wherein the latch bolt is held retracted behind the slider plate.

Abstract: A kingpin lock including a body having a substantially frustoconical portion and a kingpin cavity having a central axis, a slide channel having a central axis and a sleeve channel having a central axis. The slide channel intersects the kingpin cavity such that its central axis is substantially offset from a radius that extends outwardly from the central axis of the kingpin cavity. The sleeve channel intersects the slide channel. A slide member is shiftable between an engaged position extending partially into the kingpin cavity and a disengaged position where the slide member does not engage the kingpin. A locking member is shiftable between an engaged position and a disengaged position such that the locking member engages an indentation in the slide member so that the slide member is secured in the engaged position and the kingpin lock is secured to the kingpin.

Abstract: A kingpin lock including a body having a substantially frustoconical portion and a kingpin cavity having a central axis, a slide channel having a central axis and a sleeve channel having a central axis. The slide channel intersects the kingpin cavity such that its central axis is substantially offset from a radius that extends outwardly from the central axis of the kingpin cavity. The sleeve channel intersects the slide channel. A slide member is shiftable between an engaged position extending partially into the kingpin cavity and a disengaged position where the slide member does not engage the kingpin. A locking member is shiftable between an engaged position and a disengaged position such that the locking member engages an indentation in the slide member so that the slide member is secured in the engaged position and the kingpin lock is secured to the kingpin.