This invention relates to equipment for securing a truck trailer against theft by protecting the trailer kingpin against being secured by a tractor. The device employs a lock housing or body which has a hole which is adapted to fit over the trailer kingpin. A sliding member is employed to go into sliding contact with the groove in a standard trailer kingpin. The sliding member is configured with a concave edge on one end in order to contact the annular groove in the standard trailer kingpin. A s...

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 p...

A kingpin lock device generally including a lock housing, a selectively engageable lock, and a sliding member. The lock housing can include a kingpin receiving aperture, a lock receiving channel, and a sliding channel. The sliding member can include a concave portion at one end for engaging the surface of the kingpin, a slot portion intermediate the sliding member for receiving the selectively engageable lock, and a stop lip/flange portion at the end distal the curved portion. The stop flange po...

A gate latch including a bolt portion, a sleeve portion and a channel bolt. The sleeve portion is mounted on a generally U-shaped clamp assembly that is adapted to fit around tubular gate members. The sleeve portion further includes a receiving notch and a padlock portion. The padlock portion is adapted to receive a standard padlock and to surround the shackle of the padlock so as to deter attempts to attack the shackle with cutting tools. The bolt portion includes a C-shaped channel adapted to ...

A puck shaped lock including a substantially cylindrical body into which a cavity is formed and a movable bolt that passes through the cavity and is shiftable from a first position advanced across the cavity to a second position substantially withdrawn from the cavity and which can be releasably secured across the cavity fixedly connected to and extending from the puck shaped lock and being securable to a door or a door jamb. The invention further includes a hasp member supporting a first staple...