Patent 9349259 was granted and assigned to NCR on May, 2016 by the United States Patent and Trademark Office.
A device includes a shutter blade supported by an end plate and a cam driver having a cam pin positioned to traverse a slot in the end plate of the shutter blade, the cam pin and slot acting to lock the shutter blade in a closed position, and operating to open the shutter blade as the cam pin traverses the slot.