Image Number 4 for United States Patent #5577787.
A safety hook, that includes a hook with a hook end and a latch member with a first end that is pivotably connected to the hook and a second free end. The latch member is pivotable about the first end between a first position where the second end is located away from the hook end and a second position where the second end is located at the hook end. The safety hook also includes a biasing spring for biasing the latch member to the second position. Additionally, the safety hook includes a retainer member mounted on the latch. The retainer member keeps the latch in the first position and prevents the latch from moving to the second position.