Cylinder lock/key combination, a key and a key blank therefor
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United States of America Patent
Stats
-
Jul 14, 1998
Grant Date -
N/A
app pub date -
Jan 28, 1997
filing date -
Jul 28, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A cylinder lock/key combination includes a lock cylinder (2), a plug (3) rotatably mounted in the cylinder (2) and having a key slot (4), and a number of tumbler pins (6) that are activatable by the code (5a) on the key (5). The key slot carries or houses an element (7) which extends axially along a substantial part of the slot. The key (5) has a blade part (5c) which includes an axially extending portion (5d) in which there is provided a hole (8) for receiving the slot-carried element (7) as the key is inserted into the lock. The slot-carried element (7) and the hole (8) provided in the key (5) are located eccentrically in relation to the center of the plug (3) and accompany rotation of the plug while aided by the key (5). The profile shape of the slot-carried element (7) and the hole (8) in the key may vary within wide limits. The invention also relates to a key belonging to a combination of the aforementioned kind, and to a key blank from which such a key can be produced.
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