Patent ID: 7768378

Claim:
A retrofittable lock assembly for an enclosure, said enclosure comprising an exterior portion and an access door, the retrofittable lock comprising: a strike plate removably mountable to the exterior of said enclosure; a housing removably mountable to said access door of said enclosure; a latch bolt mounted in said housing and operatively configured to cooperate with said strike plate to inhibit relative movement between said strike plate and said latch bolt; a drive motor mounted in said housing and operatively configured to retract said latch bolt into said housing to allow relative movement between said strike plate and said latch bolt; a microprocessor mounted in said housing; a memory mounted in said housing; and an access authorization circuit associated with said housing for receiving access authorization request data from a user, wherein data received by said access authorization circuit is verified by said microprocessor by comparing the data to a plurality of valid data sequences whereby, upon validation, said microprocessor energizes said drive motor to operate said latch bolt and stores lock operation data in said memory.