Patent 10138642 was granted and assigned to Modular Security Systems Inc. on November, 2018 by the United States Patent and Trademark Office.
A portable container is provided which comprises a passing room(s) allowing entry into a second area into a first area, the passing room having at least two openings with a walkway in-between. Barrier device(s) can be located in the walkway but not connected to the first or second opening. A control room(s) can also be provided, the control room being connected to the passing room(s).