Mechanical lock and method of operation thereof

Abstract

A lock including a set of tumblers preserving their position after contact with a key to permit blocking of the keyhole during the opening process.

1 . A lock mechanism by means of its tumblers and fully using a well-known method of contour/profile gauge work, creates/forms a “duplicate” of a key, inserted into the locks keyhole and then, uses that “duplicate” for the essential locks opening instead of the key original, which has to be removed from the lock after it makes the “duplicate”. 
     
     
         2 . A lock mechanism of  claim 1 , where the “essential” opening process occurs with a keyhole blocked from entering of any subject in the lock; - a key hole only at the time being of essential opening operation is closed. 
     
     
         3 . A method of opening a lock with a key, comprising
 inserting the key into a keyhole in the lock;   bringing the key in contact with tumblers to make the configuration of the tumblers match the shape of the contacted portion of the key;   removing the key so that the configuration of the tumblers is maintained;   blocking the keyhole; and   if and only if the configuration of the tumblers matches the lock's configuration, opening the lock.   
     
     
         4 . The method of  claim 3 , wherein the tumblers are pin tumblers. 
     
     
         5 . The method of  claim 3 , wherein the tumblers are lever tumblers. 
     
     
         6 . The method of  claim 3 , wherein the configuration of the tumblers is maintained by friction.