Method and apparatus for opening a lock

专利名称：Method and apparatus for opening a lock发明人：Thomas E. Easley申请号：US06/025402申请日：19790330公开号：US04229959A公开日：19801028

摘要：A novel method and apparatus for opening a magnetic cylinder lock of the typehaving an outer cylinder, a rotatable inner cylinder disposed within the outer cylinder,one or more magnetic pins disposed within chambers of one of the cylinders forengaging the other cylinder to prevent the inner cylinder from rotating, and a keywaywithin the inner cylinder for insertion of a magnetic key to displace each pin and releasethe inner cylinder, thereby opening the lock. A probe is provided for insertion within thekeyway to determine the presence and polarity orientation of each magnetic pin bydetecting its magnetic field. An indexing arm within the probe abuts the lock andprovides a signal representative of the position of each pin chamber. Sensor circuitrycorrelates a signal from the probe representative of the presence and polarity

orientation of each pin with a signal from the indexing arm representative of the positionof each pin chamber and displays the \"combination\" of the lock. A selectively-actuablemaster key with a plurality of electromagnets imbedded therein is provided for insertioninto the keyway and a power supply is used to actuate the electromagnets momentarilywhile turning the master key to displace each pin and open the lock.

申请人：EASLEY; THOMAS E.

代理机构：Chernoff & Vilhauer

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