Patent attributes
The present invention comprises a hinge device. The hinge device is located within a housing, and may comprise a rotating drum mounted on a hinge bar. The rotating drum is slidable between a first, locked position and a second, unlocked position, and also rotatable with respect to the housing. The hinge device may also comprise a engagement wall positioned within the housing and having a shelf and at least one locking slot. A locking member may be formed on the rotating drum and may cooperate with the engagement wall when the rotating drum is in the first, locked position to prevent the rotating drum from rotating with respect to the housing. A biasing spring may be located within the housing, which biases the rotating drum toward the first, locked position.