US Patent 7699145 Elevator disk brake with damping

An elevator brake assembly (16) includes a plate (26) having damper assemblies (28) including at least one spring (30) for controlling movement of the plate (26) relative to a magnetic field generator (20). A biasing member (36) forces the plate (26) into engagement with a disk (22) fixed to a rotating shaft (18). A force created by the magnetic field generator (20) overcomes force of the biasing member (32) to draw the plate (26) into contact with the magnetic field generator (20). The impact between the plate (26) and the magnetic field generator (20) is controlled by the damping assembly (28) to substantially reduce impact noise.