Patent ID: 8172284

Claim:
A door handle, comprising: a flat and substantially rectangular positioning element having four rounded corners, a center through hole, and four notches along the circumference of said positioning element adjacent to said four corners, respectively, the positioning ring being adapted to fix to a lock of a door and receive a spindle of the lock through said center through hole; an engaging ring, which has an inner circumference divided equally into four arc sections, each having a curved indentation, each curved indentation having a step whose height is roughly half of that of said curved indentation extending from an end of said curved indentation to a point close to the other end of said curved indentation, thereby forming a J-shaped track, a slim elastic plate having a first end fixedly attached to the circumference of said engaging ring and a free second end, an axial groove being provided along an outer circumference of said engaging ring; a handle member having at least a portion, which comprises a cylindrical cover and a handle attached to an outer side of said cover, an axial rib being provided along an inner wall of said cover, said engaging ring being received in said cover with said axial rib being fit into the axial groove of said engaging ring, so that said cover and said engaging member are rotatably coupled together; wherein said engaging ring and said first piece are twisted together to lock to said positioning element as said four corners of said positioning element enter said curved indentations and slide into said tracks, respectively, and the free second end of said elastic plate being received in one of said four notches to prevent free disengagement of the handle member.