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(11) | EP 0 500 366 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Token validation mechanism |
| (57) The invention relates to a token validation mechanism (10) comprising a passageway
(20) having an entrance (22) for receiving a token, an accept exit (26) and a reject
exit (24). Token arresting means (28) are located in the passageway (20) for arresting
forward movement of the token. Token damping means (42, 44) are positioned adjacent
the token arresting means (30) for damping sideways movement of the token (60) for
facilitating static measurement of the validity thereof by static measurement means.
The token damping means comprises an in- dined cage (42) housing a ball (44) arranged
to impinge on the token as it is arrested. Token freeing means (28) are provided for
freeing the token from the token arresting means once measurement of the validity
of the token has occured. Token steering means (49), which are responsive to a signal
from the static measurement means, steer the token through either the accept exit
of the reject exit, depending on the validity of the token. |