DEVICE TO INPUT ACCESS CODE INTO EXECUTIVE LOCK MECHANISM CONTROLLER Russian patent published in 2008 - IPC E05B47/00 

FIELD: protection of different objects against intrusion.

SUBSTANCE: device comprises reading unit linked to executive mechanism controller and including magnetosensitive sensors. The sensors are secured to one side of non-magnetic substrate. Coded key is made as ferromagnetic disc having through orifices. The orifices are formed so that orifice centers are on lines radially shifted from disc center. Number of orifices lying on one radial line is from 1 to number equal to number of magnetosensitive sensors. Disc is installed so that it may rotate over substrate about axis transversal to disc center. Line of magnetosensitive sensor installation is radially extending from disc center. Non-magnetic plate is secured to free surface of non-magnetic substrate and spaced a distance therefrom to provide free disc rotation. The plate carries constant magnets. Number of constant magnets is equal to number of magnetosensitive sensors. Centers of magnetosensitive sensors, constant magnets and disc orifices are aligned with each other. Substrate has hairline. Outer disc surface also has hairlines and/or identifying marks. The non-magnetic plate may be made as pocket with outlet slot corresponding to disc dimensions. Bottom is defined by arch-shaped plate having curvature radius corresponding to arc radius of disc circle.

EFFECT: increased lock secrecy, elimination of code inputs by unauthorized person possessing lock key.

4 cl, 3 dwg