Cylinder lock and key
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 13, 1998
Grant Date -
N/A
app pub date -
Jan 29, 1997
filing date -
Jan 29, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cylinder lock is provided with a resiliently biased auxiliary locking pin which projects into the keyway, the auxiliary locking pin having a first end which is shaped to in part define a flaring tenon and a second end which engages a locking recess in the lock shell. The cooperating key has a blade with a longitudinal slot shaped, in the manner of a mortise, to engage the first end of the auxiliary locking pin, the depth profile of the mortise increasing from an initial engagement depth to a functional depth. Key insertion causes generation of an axial force which is applied to the head of the auxiliary locking pin to retract the pin second end from the shell locking recess.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully