Patent ID: 7305796

Claim:
A door-closing assembly used on a door that is capable of being open in two opposite direction and having a top, a bottom and a side surface, and the closing assembly having a body adapted to be mounted on the bottom of the door and having a proximal end; a distal end; a top; a bottom; a connecting element mounted on the body; a longitudinal hole defined in the bottom near the proximal end of the body; and a threaded hole laterally formed in the body at the distal end and communicating with the longitudinal hole; a drive device mounted in the body and having a mounting pillar being semicircle-shaped, rotatably held inside the longitudinal hole and having an upper end; a lower end; a slab being circular-shaped, formed on the upper end of the mounting pillar and held inside the longitudinal hole; a mounting block mounted on the lower end of the mounting pillar; a resisting surface formed on the mounting pillar between the slab and the mounting block and having two sides; and two planar returning surfaces respectively formed inclinedly on the sides of the resisting surface between the slab and the mounting block; a jacket being hollow, slidably held inside the threaded hole in the body and contacting with the mounting pillar; a holding head screwed into the threaded hole at the distal end of the body; and a spring held in the threaded hole between the jacket and the holding head; and a fastening device connected with the mounting pillar and having a bottom board engaged with the mounting block and having a center; and a mounting hole formed in the center through the bottom board and securely engaged with the mounting block.