Coded token identification system for slot vending machine - has stamped concentric rings of variable dimension to facilitate validation and enhance security

摘要

The means of validation uses flat, coin-shaped tokens or jettons (1) coded with at least 1 concentric ring (3) of stamped sections (4) on one or both sides and a hole (2) through the centre. The separation and width and/or length of stamped sections may vary. USE/ADVANTAGE - Access to car parks, restricted zones. Purchase of goods or services from vending machines. Prevents unauthorised access. Fits standard slots in machines.