Magnetic security system
First Claim
1. A magnetic security system particularly for alarm devices with an electrically actuated lock mechanism comprising:
- magnetic key means having a plurality of magnet devices defining an operating code;
sensor means including magnetic sensors responsive to said magnetic devices operative to read a code defined on said key means when said key means is operatively interposed relative to said sensor means;
code storage means operatively associated with said sensor means for storing information representative of a code and for releasing said sensor means when magnetic key means bearing a code stored in said storage means is operatively interposed relative to said sensor means;
electrical control means operatively associated with said sensor means for delivering an electrical signal determined by the code on said key means sensed by said sensor means; and
means for changing the code stored in said code storage means including lock means for enabling and disabling changes in said stored code;
said lock means comprising a mechanical lock, an electrical contact operated by actuation of a push-button and a flap member operative to cover and uncover said push-button to prevent and enable access thereto, said mechanical lock operating to control said flap means.
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Accused Products
Abstract
A magnetic security system is controlled by a magnetic key having magnetic devices defining an operating code which may be operatively interposed relative to a sensing device which will read the code defined on the key and will activate an electrical control system for delivering an electrical signal depending upon the code sensed upon the interposed key. The sensor device includes a code storage element and when the magnetic key is interposed relative to the sensor device, a comparison is drawn between the code on the key and the code programmed into the storage element. The storage element includes means for changing the code which is stored therein and lock means are provided to enable and disable changing of the code stored in the storage element.
21 Citations
5 Claims
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1. A magnetic security system particularly for alarm devices with an electrically actuated lock mechanism comprising:
- magnetic key means having a plurality of magnet devices defining an operating code;
sensor means including magnetic sensors responsive to said magnetic devices operative to read a code defined on said key means when said key means is operatively interposed relative to said sensor means;
code storage means operatively associated with said sensor means for storing information representative of a code and for releasing said sensor means when magnetic key means bearing a code stored in said storage means is operatively interposed relative to said sensor means;
electrical control means operatively associated with said sensor means for delivering an electrical signal determined by the code on said key means sensed by said sensor means; and
means for changing the code stored in said code storage means including lock means for enabling and disabling changes in said stored code;
said lock means comprising a mechanical lock, an electrical contact operated by actuation of a push-button and a flap member operative to cover and uncover said push-button to prevent and enable access thereto, said mechanical lock operating to control said flap means. - View Dependent Claims (2, 3, 4, 5)
- magnetic key means having a plurality of magnet devices defining an operating code;
Specification