Changeable key cylinder exposed shackle padlock
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United States of America Patent
Stats
-
Oct 11, 1988
Grant Date -
N/A
app pub date -
May 27, 1987
filing date -
May 27, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A changeable key cylinder padlock including a padlock casing, a shackle moveable between a lower locking position and a upper release position, the casing having a central substantially cylindrical cavity therein located between the sockets shaped to receive and removably house a key lock cylinder. The lock cylinder located in the plug cavity has a first key position and is operable by a operator key and control key to rotate to second and third key positions respectively. Locking spheres are positioned when the lock cylinder occupies the first key position to hold the shackle in the lower locking position and release the shackle at the second and third key positions for movement to said upper release position. An interlock plunger and pin are intercoupled with the lock plug normally occupying a first interlock position allowing key rotation of the cylinder member to and between the key positions and movable when the cylinder member occupies the second key position and the shackle is moved to said release position to assume a second interlock position restraining the cylinder member against return movement to the first key position to restrain the key against removal from the lock cylinder.
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