Apparatus for simultaneously unlocking a door lock and a dead bolt
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United States of America Patent
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-
Mar 16, 1999
Grant Date -
N/A
app pub date -
Mar 31, 1997
filing date -
Mar 31, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for simultaneously unlocking a locked dead bolt functioning as an auxiliary locking device when a lever of a cylinder door lock is turned from the interior side, in order to promptly and conveniently open a door on the inside. This is possible because an actuating body is installed on the inside for unlocking the dead bolt by rotation of a lever as well as making the lever restore.
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