Cylinder lock assembly
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United States of America Patent
Stats
-
Jun 9, 1987
Grant Date -
N/A
app pub date -
Oct 15, 1985
filing date -
Oct 23, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cylinder lock includes a rotor rotatably mounted in a bore of a stationary casing. A key passage in the rotor is blocked by a biased shutter which is caused to pivot against the action of a spring when a key is introduced into the key passage. The rotor includes a plurality of separated, spring-urged tumblers which engage with the key in the key passage. A soft-elastic wiper for removing water from the key is positioned in a lateral slot between the entrance of the key passage and a first tumbler. Flaps of the wiper form a normally closed slit which is openable by the force of the key when the key is advanced towards an operational position.
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Cited Art Landscape
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