Patent ID: 8047583

Claim:
A door operating assembly for operating a door, the assembly comprising: a rotatable main shaft mounted on the door, the shaft having at least one lock arm acting as an interfering element mounted to it at least one portion of the shaft; wherein the door comprises a locking mechanism aligned with the interfering element; the door operating assembly further comprising: a handle assembly, comprising: first and second handle sections, movable independently of each other, and mounted to the shaft which rotates to facilitate unlocking and locking of the door, the second handle section being operatively connected to the locking mechanism via a linkage; wherein: the locking mechanism prevents rotation of the shaft by interfering with the interfering element when the first handle section moves a predetermined distance with respect to the second handle section, to prevent unlocking of the door; and the shaft further comprises at least one latching element at an end of the shaft operatively connected to a latch on the door that is movable to an unlock position when the first handle section and the second handle section are adjacent to one another and move together.