E - Fixed Constructions – 05 – B
Patent
E - Fixed Constructions
05
B
E05B 27/02 (2006.01) E05B 11/06 (2006.01) E05B 19/04 (2006.01)
Patent
CA 2043080
A cylinder lock system employing a key having a projection extending from each opposing parallel edge of the key blade, the projections respectively operating an auxiliary pin tumbler stack and cooperating with a groove in the lock shell to retain the key in the lock after plug rotation from the key insertion position. The key retaining projection also cooperates with the driver pin of the auxiliary pin tumbler stack to prevent key trapping, i.e., the presence and size of the retaining projections keeps the auxiliary driver pin from engaging the keyway. The cooperation between the key retaining projection and the auxiliary driver pin is permitted by providing the lock with two shear lines, located on different diameters, which are simultaneously operable by a single key.
Kaba High Security Locks Corporation
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
LandOfFree
Key unlocking and retaining method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Key unlocking and retaining method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Key unlocking and retaining method and apparatus will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-2038087