Patent ID: 8683833
Filing Date: 2014-04-01
Classification: E05B,E05C,G07C,Y10T

Abstract:
1. In a handle set for a lock with a latch, the handle set being for a door that is between an interior handle and an exterior handle of the handle set, the door having a central plane, wherein: a coupling apparatus selectively couples the exterior handle to the latch, the coupling apparatus being activated by a non-contact signal from a transponder; an authenticator circuit authenticates the signal from the transponder and controls an actuator; wherein the authenticator circuit and the actuator are positioned on an interior side of the central plane of the door and at least partially housed in the interior handle, wherein the coupling apparatus comprises a force transfer member and an outer coupling member, wherein the force transfer member and outer coupling member are coupled via camming blocks in such a manner that a movement of the force transfer member causes a movement of the camming blocks, wherein said movement of the force transfer member is not transferred through the camming blocks to the outer coupling member in a decoupled state and is transferred through the camming blocks to the outer coupling member in a coupled state, wherein a blocking element can be positioned between the camming blocks in the coupled state, the blocking element preventing the camming blocks from giving way and thus coupling the force transfer member with the outer coupling member in the coupled state, and wherein the blocking element moves out of the way of the camming blocks in the decoupled state, further comprising a security apparatus that prevents the blocking element from being moved in the presence of an externally applied magnetic field, wherein said security apparatus comprises a movable security arm which is caused to actively pivot to a secure position when an external magnetic field is applied, wherein the blocking element cannot be moved between the camming blocks when said security arm has been moved in said secure position such that the lock cannot change from a decoupled to a coupled state.