Abstract: A double clutch assembly includes a first clutch assembly and a second clutch assembly. The first clutch assembly includes a cylinder (21), a driver assembly, comprising a control member (11), a driver (1), and a driver shaft (9), wherein the control member (11), the driver (1), the driver shaft (9) and are configured to rotate concentrically together and a follower (2). The cylinder (21) is connected to the driver shaft (9). The rotation of the cylinder (21) causes the driver shaft (9) to engage with or disengage from the follower (2). The second clutch assembly includes an actuating assembly and a coupler (3). The coupler (3) relates to and is configured to rotate concentrically with the driver assembly. The actuating assembly is operably connected to the coupler (3) and is configured to move the coupler (3) causing the coupler (3) to disengage from or engage with the follower (2).

Abstract: A clutch assembly for a lock includes a driver (1), having a driver shaft (9); a coupler (3); and a follower (2). The driver (1), the coupler (3) and the driver shaft (9) are configured to rotate concentrically together. The coupler (3) is configured to move along the central axis of the driver shaft (9) to couple to or decouple from the follower (2). The driver (1) and the follower (2) are configured to rotate concentrically together when the coupler (3) is engaged to the follower (2), and wherein the driver (1) and the follower (2) are configured to rotate independently when the coupler (3) is disengaged from the follower (2).

Abstract: A lock system, comprising a stationary member, a hand operated member, and a coupling member, wherein the stationary member and the hand operated member are configured to be operably coupled by the coupling member, and wherein the connection member is configured to remain within the stationary member and to extend into or retract from the hand operated member.