Door lock with an improved structure
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United States of America Patent
Stats
-
Feb 14, 2012
Grant Date -
May 14, 2009
app pub date -
Oct 10, 2008
filing date -
Oct 12, 2007
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A door lock with an improved structure is disclosed. It has a turning device that includes a positioning base. The positioning base is mounted with a circular spacer with a lock control device therein. A connecting shaft for driving the lock control device is provided with a limiting element that has a protruded stopping part at its end. The lock has a lock core whose one end allows the insertion and turning of a key. Its other end is connected with the connecting shaft and has grooves, so that the stopping part of the limiting element blocks the lock core when the door is locked.
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Family
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