US Patent 10087656 Keyless locking system

A housing has a front plate and a rear plate and a periphery there between thereby forming a chamber. A plurality of magnets removably couple the housing to a door. The door has an exterior surface with a rotatable existing deadbolt. A drive train sub-assembly with a motor is within the chamber. A power transfer sub-assembly is also within the chamber. The power transfer sub-assembly includes an elastomeric component and a C-channel positionable over the existing deadbolt. The power transfer sub-assembly is powered by the drive train sub-assembly. A control member is adapted to be pressed to power the motor to rotate the C-channel and the existing deadbolt.