Closure system
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United States of America Patent
Stats
-
Nov 19, 1996
Grant Date -
N/A
app pub date -
Nov 7, 1994
filing date -
May 13, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A closure system having card keys (K) which are adapted to be issued in coded form, the broad-side surfaces of which are divided into individual fields (E) which can be differently magnetically coded for the individual locks/card-holders and move correspondingly positioned magnetic locking pins (31) as tumblers of the lock (4) into open position; for the broadening, in particular, of their purpose of use, a service station (SA) re-codes data identification individual fields (E1) of the key (K), increasing or decreasing their value, and an evaluation station is provided having a reader for noting and storing these re-codings in association with other codings of the card key (K).
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