Patent ID: 7614669

Claim:
An electric door lock that is interchangeable between fail safe and fail secure modes, comprising: a housing for receiving the internal components of the door lock; a latch bolt mounted at least partially within said housing and being movable between partially extended from and retracted into said housing; a doorknob mounted to said housing and rotatable to retract said latch bolt; said internal components comprising at least a solenoid assembly and a cradle, said solenoid assembly mounted within said housing that can be interchangeably arranged to cause said lock to operate in a fail secure or fail safe mode, wherein said cradle is held in place to the inside of said housing and said solenoid assembly is held in place within said cradle in both said fail safe and fail secure modes; a shim plate between said cradle and said housing, wherein said housing further comprises first and second holes and said shim plate further comprising a mounting pin and a threaded hole, said lock further comprising a screw, said shim plate held in place within said housing by said mounting pin being inserted into one of said first and second holes, and said screw passing through the other of said first and second holes and turning into said threaded hole; and wherein said shim plate further comprises upper holes and said cradle further comprises pins, said cradle held to said shim plate by said pins being inserted in said upper holes.